RST90Y RS Venture Owners Manual - Yamaha Motorsports USA...guished in this manual by the following...

OWNER’S MANUAL

RST90Y

8ET-28199-14LIT-12628-02-72

ESU10012

Read this manual carefully before operating this vehicle.

ESU10041

Read this manual carefully before operating this vehicle. This manualshould stay with this vehicle if it is sold.

U8ET14E0.book Page 1 Thursday, April 10, 2008 9:47 AM

IntroductionESU10121

Congratulations on your purchase of aYamaha snowmobile. This model is the resultof Yamaha’s vast experience in the produc-tion of fine sporting and touring snowmobiles.It represents the high degree of craftsmanshipand reliability that have made Yamaha a lead-er in these fields.This manual will give you an understanding ofthe operation, inspection, and basic mainte-nance of this snowmobile. If you have anyquestions concerning the operation or main-tenance of your snowmobile, please consult aYamaha dealer.Yamaha continually seeks advancements inproduct design and quality. Therefore, whilethis manual contains the most current productinformation available at the time of printing,there may be minor discrepancies betweenyour snowmobile and this manual. If there isany question concerning this manual, pleaseconsult a Yamaha dealer.

WARNINGEWS00670

Please read this manual carefully beforeoperating this snowmobile. Do not attemptto operate this snowmobile until you haveattained adequate knowledge of its con-trols and operating features.Regular inspections and careful mainte-nance, along with good operating tech-niques, will help ensure that you safelyenjoy the capabilities and reliability of thissnowmobile.

RST90YOWNER’S MANUAL

©2008 by Yamaha Motor Corporation, U.S.A.

1st Edition, March 2008All rights reserved.

Any reprinting or unauthorized use without the written permission of

Yamaha Motor Corporation, U.S.A.is expressly prohibited.

Printed in Japan.P/N LIT-12628-02-72


Important manual informationESU10151

Particularly important information is distin-guished in this manual by the following nota-tions.

This is the safety alert symbol. It is usedto alert you to potential personal injury haz-ards. Obey all safety messages that followthis symbol to avoid possible injury or death.

WARNINGEWS00021

A WARNING indicates a hazardous situa-tion which, if not avoided, could result indeath or serious injury.

NOTICEECS00011

A NOTICE indicates special precautionsthat must be taken to avoid damage to thesnowmobile or other property.

TIPA TIP provides key information to make pro-cedures easier or clearer.


Contents

Location of the important labels .....1

Safety information ............................3

Description ........................................5

Control functions ..............................7Main switch .................................... 7Starter (choke) lever ....................... 7Throttle lever .................................. 7Engine overheating prevention

system ......................................... 8Throttle override system

(T.O.R.S.) .................................... 8Speedometer unit ........................... 9High beam indicator light .............. 10Low coolant temperature indicator

light ............................................ 10Fuel meter and grip/thumb

warmer level indicator ............... 10Fuel level warning indicator .......... 12Oil level warning indicator ............ 12Coolant temperature warning

indicator ..................................... 13Self-diagnosis device ................... 13Engine stop switch ....................... 13Headlight beam switch

“LIGHTS” ................................... 13Grip/thumb warmer adjustment

switch ........................................ 14Auxiliary DC jack .......................... 14Brake lever ................................... 15Parking brake lever ...................... 15Shift lever ..................................... 15Shroud latches ............................. 16Drive guard ................................... 16V-belt holders ............................... 17Passenger grip warmer switch ..... 17Footrests ...................................... 17Backrest ....................................... 17Storage areas ............................... 18Fuel .............................................. 20

Suspension .................................. 21

Pre-operation checks ..................... 26Pre-operation check list ............... 26

Operation ......................................... 28Starting the engine ....................... 28Break-in ........................................ 29Riding your snowmobile ............... 29Maximizing drive track life ............ 33Driving .......................................... 33Stopping the engine ..................... 34Transporting ................................. 35

Periodic maintenance and adjustment....................................... 36

Periodic maintenance chart for the emission control system ..... 36

General maintenance and lubrication chart ........................ 38

Tool kit ......................................... 40Checking the spark plugs ............. 40Adjusting the engine idling

speed ........................................ 41Adjusting the throttle cable free

play ........................................... 41Checking the throttle override

system (T.O.R.S.) ..................... 42Checking the air filter ................... 42Carburetors .................................. 43High-altitude settings ................... 43Valve clearance ........................... 44Engine oil and oil filter cartridge ... 44Cooling system ............................ 47V-belt ............................................ 49Drive chain housing ..................... 52Brake and parking brake .............. 53Skis and ski runners ..................... 55Steering system ........................... 56Drive track and slide runners ....... 57Lubrication ................................... 60Replacing a headlight bulb ........... 61


Contents

Adjusting the headlight beam ....... 62Fittings and fasteners ................... 62Battery .......................................... 62Replacing a fuse .......................... 63

Troubleshooting ............................. 66

Storage ............................................ 70

Specifications ................................. 72

Consumer information.................... 74Identification number records ....... 74YAMAHA MOTOR

CORPORATION, U.S.A. SNOWMOBILE LIMITED WARRANTY............................... 75

YAMAHA EXTENDED SERVICE (Y.E.S.)....................................... 78


Location of the important labels

1

ESU10213

Read and understand all of the labels on your vehicle. They contain important information forsafe and proper operation of your vehicle. Never remove any labels from your vehicle. If a labelbecomes difficult to read or comes off, a replacement label is available from your Yamaha deal-er.

ATTENTION

8ET-2815K-10

NOTICE

8ET-2815K-00

2 3

9 10


Location of the important labels

2

20kg {44lbs}

LOAD LIMIT / CHARGE LIMITE

8FM-24897-01

10kg {22lbs}

LOAD LIMIT / CHARGE LIMITE

8ET-24897-00

NOTICE ATTENTIONSevere engine damagecan result from oil loss ifcrankcase breather hosesare not installed correctly.Inspect hoses and clampsfor correct installation

after battery service orair box removal.See Service Manual.

Des dommages graves risquent de survenir parsuite de fuites d’huile résultant d’un mauvaisbranchement des tuyaux de reniflard du carter.Après l’entretien de la batterie ou après ladépose de I’épurateur d’air, assurez-vous que les brides et les tuyauxsont installès correctement.Consultez le manueld’entretien.

8GS-2815J-E0

4

7 8

9 10

56


Safety information

3

ESU10203

As the vehicle’s owner, you are responsiblefor the safe and proper operation of yoursnowmobile. When you ride your snowmo-bile, you must know and use the following foryour safety. Severe injury or death may resultif you ignore any of the following.Before you operate your snowmobile� Read the Owner’s Manual and all labels.

Become familiar with all of the operatingcontrols and their function. Consult aYamaha dealer about any control or func-tion you do not understand.

� Wear protective clothing. Wear an ap-proved helmet, and a face shield or gog-gles. Also, wear a good quality snowmobilesuit, boots, and a pair of gloves or mittensthat will permit use of your thumbs and fin-gers for operation of the controls.

� Do not operate the snowmobile after orwhile drinking alcohol or taking drugs. Yourability to operate the snowmobile is re-duced by the influence of alcohol or drugs.

Prepare your snowmobile� Perform the pre-operation checks each

time you use the vehicle to make sure it isin safe operating condition. Failure to in-spect or maintain the vehicle properly in-creases the possibility of an accident orequipment damage. See page 26 for a listof pre-operation checks.

� Apply the parking brake before starting theengine. Never drive the snowmobile withthe parking brake applied. This may over-heat the brake disc and reduce braking abil-ity.

While using your snowmobile� This snowmobile was not manufactured for

use on public streets, roads, or highways.Such use is prohibited by law, and youcould collide with another vehicle.

� Be careful where you ride. There may beobstacles hidden beneath the snow. Stayon established trails to minimize your expo-sure to hazards. Ride slowly and cautiouslywhen you ride off of established trails. Hit-ting a rock or stump, or running into wirescould cause an accident and injury.

� This snowmobile is not designed for use onsurfaces other than snow or ice. Use on dirt,sand, grass, rocks, or bare pavement maycause loss of control and may damage thesnowmobile.

� Always ride with other snowmobilers whengoing on a ride. You may need help if yourun out of fuel, have an accident, or damageyour snowmobile.

� Many surfaces such as ice and hardpackedsnow require much longer stopping distanc-es. Be alert, plan ahead and begin deceler-ating early. The best braking method onmost surfaces is to release the throttle andapply the brake gently—not suddenly.

Avoid carbon monoxide poisoningAll engine exhaust contains carbon monox-ide, a deadly gas. Breathing carbon monoxidecan cause headaches, dizziness, drowsiness,nausea, confusion, and eventually death.Carbon monoxide is a colorless, odorless,tasteless gas which may be present even ifyou do not see or smell any engine exhaust.Deadly levels of carbon monoxide can collectrapidly and you can quickly be overcome and


Safety information

4

be unable to save yourself. Also, deadly lev-els of carbon monoxide can linger for hours ordays in enclosed or poorly-ventilated areas. Ifyou experience any symptoms of carbonmonoxide poisoning, leave the area immedi-ately, get fresh air, and SEEK MEDICALTREATMENT.� Do not run the engine indoors. Even if you

try to ventilate engine exhaust with fans oropen windows and doors, carbon monoxidecan rapidly reach dangerous levels.

� Do not run the engine in poorly ventilated orpartially enclosed areas such as barns, ga-rages, or carports.

� Do not run the engine outdoors where en-gine exhaust can be drawn into a buildingthrough openings such as windows anddoors.

Genuine Yamaha AccessoriesChoosing accessories for your snowmobile isan important decision. Genuine Yamaha Ac-cessories, which are available only from aYamaha dealer, have been designed, tested,and approved by Yamaha for use on yoursnowmobile. Many companies with no con-nection to Yamaha manufacture parts and ac-cessories or offer other modifications forYamaha vehicles. Yamaha is not in a positionto test the products that these aftermarketcompanies produce. Therefore, Yamaha canneither endorse nor recommend the use ofaccessories not sold by Yamaha or modifica-tions not specifically recommended byYamaha, even if sold and installed by aYamaha dealer.Maintenance and storage� When laying the snowmobile on its side for

maintenance, use a suitable stand to keepit in a stable and level position.

� Do not leave the snowmobile on its left sidefor an extended period of time. Fuel mayleak out from the fuel breather hose.

� Do not allow anyone to stand behind thesnowmobile when starting, inspecting, oradjusting the snowmobile. A broken track,track fittings, or debris thrown by the trackcould be dangerous to the operator or by-standers.

� Modifications made to the snowmobile notapproved by Yamaha, or the removal oforiginal equipment may render your snow-mobile unsafe for use, which may cause se-vere personal injury. Modifications mayalso make the snowmobile illegal to use.

� Never store the snowmobile with fuel in thefuel tank inside a building where ignitionsources are present such as hot water andspace heaters, an open flame, sparks,clothes dryers, and the like. Allow the en-gine to cool off before storing the snowmo-bile in an enclosed space.


Description

5

ESU10260

1. Storage compartment2. Tool kit3. Air filter4. Battery5. Coolant reservoir6. Fuse box7. Throttle stop screw8. Main fuse9. Oil filler cap10. Passenger grip warmer switch11. Solo touring storage area

12. Backrest13. Rear carrier14. Tail/brake lights15. Slide rail suspension16. Drive track17. V-belt holder


Description

6

TIP� The snowmobile you have purchased may differ slightly from those shown in the figures of

this manual.� Design and specifications are subjected to change without notice.

1. Brake lever2. Parking brake lever3. Grip warmer adjustment switch4. Headlight beam switch5. Engine stop switch6. Thumb warmer adjustment switch7. Throttle lever8. Shift lever9. Shroud latch10. Main switch11. Auxiliary DC jack12. Starter (choke) lever13. Tachometer14. Low coolant temperature indicator light

15. High beam indicator light16. Warning light17. Self-diagnosis warning indicator18. Coolant temperature warning indicator19. Fuel level warning indicator20. Oil level warning indicator21. Speedometer22. Grip warmer indicator23. Select/reset button24. Thumb warmer indicator25. Fuel meter and grip/thumb warmer level in-

dicator26. Odometer/tripmeter


Control functions

7

ESU10282

Main switch The main switch controls the ignition andlighting systems. The various positions aredescribed below.

OffThe ignition circuit is switched off.The key can be removed only in this position.OnThe ignition circuit is switched on.StartThe starting circuit is switched on.The starter motor cranks the engine.NOTICE: Release the switch immediatelyafter the engine starts. [ECS00021]

TIPThe headlights, meter lighting, and taillightscome on after the engine is started.

ESU10300

Starter (choke) lever Use the starter (choke) lever when startingand warming up a cold engine.

TIPRefer to the “Starting the engine” section onpage 28 for proper operation.

ESU10312

Throttle lever Once the engine is running cleanly, squeez-ing the throttle lever will increase the enginespeed and cause engagement of the drivetrain. Regulate the speed of the snowmobileby varying the throttle position. Because thethrottle is spring-loaded, the snowmobile willdecelerate, and the engine will return to idlewhen it is released.

1. Off2. On3. Start

1. Starter (choke) lever

1. When starting a cold engine.2. Warming up3. When the engine is warm.


Control functions

8

ESU10321

Engine overheating prevention system This model is equipped with a system, whichprevents overheating when the engine isidling.When the engine has been idling for 3 min-utes or longer and the coolant temperaturehas risen above 100 °C (212 °F), the engineautomatically stops to prevent overheating.

TIPThe engine can be started after it stops.

ESU10332

Throttle override system (T.O.R.S.)

WARNINGEWS00041

If the T.O.R.S. is activated, make sure thatthe cause of the malfunction has been cor-rected and that the engine can be operatedwithout a problem before restarting theengine. Continuing to operate with a mal-function could cause loss of control ordamage.

If the carburetors or throttle cable malfunc-tions during operation, the T.O.R.S. will oper-ate when the throttle lever is released.The T.O.R.S. is designed to override the igni-tion and limit the engine speed to less than theclutch engagement speed if the carburetors

fail to return to the idle position when the throt-tle lever is released. (See page 72 for theclutch engagement speed.)

Idling / starting

Running

1. Throttle lever

Idling / starting Running Trouble

Throttle switch Off On Off

Throttle position sensor

Closed Open Open

Engine Run RunT.O.R.S. will oper-

ate.

1. Throttle position sensor (throttle valve closed position)

2. Throttle cable3. Throttle switch (off)

1. Throttle position sensor (throttle valve open position)

2. Throttle switch (on)


Control functions

9

Trouble

TIP� If the T.O.R.S. is activated, the warning light

and self-diagnosis warning indicator willflash, and the two-digit code “84” will flash inthe tripmeter/odometer display.

� The T.O.R.S. monitors the condition of thethrottle position sensor, speedometer as-sembly, and speed sensor, and will operateif any of the monitored items is disconnect-ed or is malfunctioning.

ESU10352

Speedometer unit The speedometer unit is equipped with thefollowing:� a digital speedometer (which shows the

riding speed)

� a tachometer (which shows engine speed)� an odometer (which shows the total dis-

tance traveled)� a tripmeter (which shows the distance trav-

eled since it was last set to zero)� warning indicators (which show self-diag-

nosis, coolant temperature, fuel level, andoil level warnings)

� indicator lights (which show high beam andlow coolant temperature conditions)

� a warning light (which shows warnings to-gether with the warning indicators)

� a fuel meter (which shows the fuel remain-ing in the fuel tank)

� a grip/thumb warmer level indicator (whichshows the grip warmer level or the thumbwarmer level)

After the engine is started, the tachometermakes one sweep, and the low coolant tem-perature indicator light, the warning light, andall segments of the meter display turn on andoff once.

The grip warmer level is initially displayed for5 seconds, then the display switches to thefuel meter.

1. Throttle position sensor (throttle valve open position)

2. Throttle switch (off)

1. Warning light “ ”2. Self-diagnosis warning indicator “ ”3. Two-digit code “84”

1. Tachometer2. Low coolant temperature indicator

light “ ”3. Warning light “ ”4. Meter display5. Select/reset button


Control functions

10

Odometer and tripmeter modesPushing the select/reset button switches thedisplay between the odometer mode “ODO”and the tripmeter mode “TRIP”.To reset the tripmeter, push the select/resetbutton for at least one second while the trip-meter is displayed.

TIPTo switch the speedometer, odometer, andtripmeter displays between kilometers andmiles, select the odometer mode “ODO”, andthen push the select/reset button for at least10 seconds while the snowmobile is stopped.

ESU10410

High beam indicator light “ ” The high beam indicator light comes on whenthe high beams of the headlights are switchedon. (See page 13 for headlight beam switchoperation.)

ESU10482

Low coolant temperature indi-cator light “ ” The low coolant temperature indicator lightcomes on when the coolant temperature islow and informs the rider that the snowmobileshould be warmed up. After the engine isstarted, warm it up until the indicator lightgoes off.

The snowmobile can be operated normally af-ter the indicator light goes off.

TIPDrive the snowmobile at low speeds when thelow coolant temperature indicator light is on. Ifthe engine speed is too high, the warning lightand self-diagnosis warning indicator will flashand the two-digit code “86” will flash in the trip-meter/odometer display. When this occurs,maximum engine speed is reduced to protectthe engine.

ESU10424

Fuel meter and grip/thumb warmer level indicator The fuel meter and grip/thumb warmer levelindicator have eight segments which showthe amount of fuel remaining in the fuel tank,the grip warmer level, or the thumb warmerlevel.

1. High beam indicator light “ ”

1. Low coolant temperature indicator light “ ”

2. Warning light “ ”3. Self-diagnosis warning indicator “ ”4. Two-digit code “86”


Control functions

11

Fuel meterThe display segments of the fuel meter disap-pear towards “E” (Empty) as the fuel level de-creases. When only one segment is left near“E”, the fuel level warning indicator and thewarning light come on.

If the fuel level warning indicator and thewarning light come on, refuel as soon as pos-sible.

TIPThe snowmobile must be stopped on a levelsurface to obtain an accurate fuel meter read-ing, since the reading changes according tothe movement and inclination of the snowmo-bile.

Grip/thumb warmer level indicatorWhen the grip warmer adjustment switch ispressed, the grip warmer indicator comes onand the display switches to the grip warmerlevel.When the thumb warmer adjustment switch ispressed, the thumb warmer indicator comeson and the display switches to the thumbwarmer level.See “Grip/thumb warmer adjustment switch”on page 14 for detailed information.

1. Fuel meter and grip/thumb warmer level in-dicator

1. Fuel level warning indicator “ ”2. Warning light “ ”

1. Grip warmer indicator “ ”2. Thumb warmer indicator “ ”

1. Grip warmer adjustment switch


Control functions

12

TIP� The grip/thumb warmer level is displayed

for 5 seconds after releasing the grip/thumbwarmer adjustment switch, then the displayswitches to the fuel meter.

� The top segment of the grip/thumb warmerlevel indicator flashes once when thegrip/thumb warmer adjustment reaches themaximum level. The bottom segment of thegrip/thumb warmer level indicator flashesonce when the grip/thumb warmer adjust-ment reaches the minimum level.

� When the engine is started, the grip/thumbwarmer levels are set to the levels selectedwhen the engine was last stopped.

ESU10451

Fuel level warning indicator “ ” The fuel level warning indicator indicates amalfunctioning sensor, disconnected coupler,broken lead, or short circuit when detected bythe self-diagnosis device of the snowmobile.The fuel level warning indicator, warning light,and all segments of the fuel meter warn therider of the above problems by flashing con-tinuously.If this occurs, have a Yamaha dealer inspectthe snowmobile as soon as possible.

ESU10460

Oil level warning indicator “ ” The oil level warning indicator and the warn-ing light come on when the engine oil level islow.

If the oil level warning indicator and the warn-ing light come on, place the snowmobile on alevel surface and allow it to idle for oneminute.If the oil level warning indicator and the warn-ing light go off, the engine oil level is sufficient,however it is getting low. Add engine oil assoon as possible.If the oil level warning indicator and the warn-ing light do not go off, check the engine oil lev-el in the oil tank (see page 44 for engine oillevel checking procedures), and add engineoil if necessary.

1. Thumb warmer adjustment switch 1. Fuel level warning indicator “ ”2. Warning light “ ”3. Fuel meter

1. Oil level warning indicator “ ”2. Warning light “ ”


Control functions

13

ESU10512

Coolant temperature warning indicator “ ” If the engine overheats, the coolant tempera-ture warning indicator and the warning lightcome on. When this occurs, stop the engineimmediately and allow the engine to cooldown, and then check the coolant level in thecoolant reservoir. (See page 47 for checkingprocedures.)

NOTICEECS00041

Do not continue to operate the engine if itis overheating.

ESU12681

Self-diagnosis device This model is equipped with a self-diagnosisdevice for various electrical circuits.If any of those circuits are not working correct-ly, the warning light and the self-diagnosiswarning indicator will flash, and a two-digit er-ror code will flash slowly in the tripme-ter/odometer display. Note the error code,and then have a Yamaha dealer inspect thesnowmobile as soon as possible. NOTICE:Do not continue to operate the enginelonger than necessary if there is an errorcode to avoid possible engine damage.[ECS00820]

ESU10531

Engine stop switch “ ” The engine stop switch is used to stop the en-gine in an emergency. Simply push the stopswitch to stop the engine. To start the engine,pull the stop switch and proceed with startingthe engine. (See page 28 for engine startingprocedures.)

During the first few rides, practice using thestop switch so that you can react quickly in anemergency.ESU10661

Headlight beam switch “LIGHTS” Push the headlight beam switch to change theheadlight to high beam “HI” or to low beam“LO”.

1. Coolant temperature warning indicator “ ”2. Warning light “ ”

1. Warning light “ ”2. Self-diagnosis warning indicator “ ”3. Two-digit error code

1. Engine stop switch “ ”


Control functions

14

ESU12651

Grip/thumb warmer adjustment switch The grip warmer adjustment switch and thethumb warmer adjustment switch control theelectrically heated handlebar grips and throt-tle lever respectively.

To raise the temperature, press the respec-tive switch to “HI”. To lower the temperature,press the switch to “LO”. (See page 10 formore information.)ESU10691

Auxiliary DC jack The auxiliary DC jack is located in the frontpanel and can be used for accessories.

TIPThe auxiliary DC jack cannot be used if theengine is not running.

To use the auxiliary DC jack1. Start the engine.2. Open the auxiliary DC jack cap, and then

insert the accessory power plug into thejack.

3. After using the auxiliary DC jack, be sureto remove the accessory power plug fromthe jack and to close the auxiliary DC jackcap.

NOTICEECS00120

� Do not use accessories requiring morethan the maximum rated capacity for theauxiliary DC jack. This may overload thecircuit and cause the fuse to blow. (Seepage 63 for the specified amperage.)

1. Headlight beam switch “LIGHTS”2. High beam “HI”3. Low beam “LO”

1. Grip warmer adjustment switch

1. Thumb warmer adjustment switch

1. Auxiliary DC jack cap2. Auxiliary DC jack


Control functions

15

� Do not use an automotive cigarette light-er or other accessory with a plug thatgets hot because the jack can be dam-aged.

ESU10550

Brake lever The snowmobile is stopped by braking the en-tire drive system.Squeeze the brake lever towards the handle-bar grip to stop the snowmobile.

TIPWhen the brake lever is operated, the brakelight will illuminate.

NOTICEECS00060

Make sure that the brake lever end doesnot project out over the handlebar end.This will help prevent brake lever damagewhen the snowmobile is placed on its sidefor service.

ESU10581

Parking brake lever When parking the snowmobile or starting theengine, apply the parking brake by moving theparking brake lever to the left.

To release the parking brake, move the park-ing brake lever to the right.

ESU10592

Shift lever The shift lever is used to put the snowmobileinto forward or reverse. After coming to acomplete stop, pull the shift lever out, slide itto “FWD” or to “REV” until it stops, and thenrelease it.

Maximum rated capacity:DC 12 V, 2.5 A (30 W)

1. Brake lever

1. Parking brake lever

1. Shift lever


Control functions

16

NOTICEECS00072

Do not use the shift lever while the snow-mobile is moving, otherwise the drive traincould be damaged.

ESU10712

Shroud latches

WARNINGEWS00082

Be sure the shroud is secured before op-eration. A loose shroud could move andcause loss of control.

To open the shroud, unhook the shroud latch-es, and then slowly raise the shroud forwarduntil it stops. When closing the shroud, slowlylower it to its home position, and then hook theshroud latches.

NOTICEECS00140

Make sure that all cables and wires are inplace when closing the shroud.

ESU10751

Drive guard

WARNINGEWS00401

� Coming in contact with the rotating V-belt or clutch parts can cause severe in-jury or death. Never run the engine withthe drive guard removed.

� Make sure that the drive guard is tight-ened securely before operating thesnowmobile to protect against severeinjury or death from a broken V-belt orother part should it come off the snow-mobile while it is in operation.

NOTICEECS00830

Never run the engine with the V-belt re-moved. Clutch components can be dam-aged.

The drive guard is designed to cover the V-belt clutch and V-belt in case parts break orcome loose.

1. Pull out.2. Slide to “FWD” (forward).3. Release.

1. Pull out.2. Slide to “REV” (reverse).3. Release.

1. Shroud latch2. Shroud


Control functions

17

ESU10760

V-belt holders Keep a spare V-belt for emergency use byplacing it into the V-belt holders provided.

NOTICEECS00180

Make sure that the V-belt is installed se-curely in the holders.

ESU10680

Passenger grip warmer switch The passenger grip warmer switch controlsthe electrically heated passenger grips.

ESU10700

Footrests The footrests can be installed in two locationsto suit passenger preference.To change the location of a footrest, removethe screws, place the footrest in the desiredlocation, and then install and tighten thescrews.

NOTICEECS00130

Make sure that the footrest screws aretightened securely after changing the in-stallation location of the footrests.

ESU12610

Backrest The backrest is adjustable.

1. Drive guard

1. V-belt holder

1. Passenger grip warmer switch2. Off3. “HI” (high)4. “LO” (low)

1. Footrest2. Screw


Control functions

18

To adjust the backrest angle, turn the back-rest adjusting knob until the backrest reachesthe desired position.

WARNINGEWS00130

Do not sit on the backrest.

ESU10821

Storage areas This snowmobile is equipped with a storagecompartment, rear storage area, and rear car-rier.Storage compartment The storage compartment is located underthe shroud.Open the storage compartment to store thetool kit, spare parts, or other small items.

Rear storage area and rear carrier The rear storage area and the rear carrier arelocated at the rear of the snowmobile.

The rear storage area can be used only whenthe passenger seat is removed.

To remove the passenger seat and backrest1. Pull the carrier lock lever away from the

carrier lock bracket, and then push itdown to unlock the backrest and the rearcarrier.

2. Slide both the backrest and the rear car-rier forward until they stop, and then re-move them.

1. Backrest adjusting knob

1. Storage compartment

1. Rear storage area2. Rear carrier

Maximum load limit:Rear storage area:

20 kg (44 lb)Rear carrier:

10 kg (22 lb)

1. Carrier lock lever


Control functions

19

3. Remove the passenger seat lock knob,and then remove the passenger seat.

4. Align the holes in the rear carrier with thebolts on the carrier lock bracket, and thenplace the rear carrier on the carrier lockbracket.

5. Slide the rear carrier backward until itstops.

6. Pull the carrier lock lever up to lock therear carrier in place. Then, place the leverunder the rear carrier and secure it withthe holder. NOTICE: When using therear storage area, do not load any car-go that is too large for it. In addition,cargo must not project from the edgesof the rear storage area. [ECS00211]

To install the passenger seat and backrest1. Remove the rear carrier. (Refer to steps

1–2 in the “To remove the passengerseat and backrest” section.)

2. Install the passenger seat, and then in-stall the passenger seat lock knob.

3. Align the holes in the backrest bracketwith the bolts on the carrier lock bracket,and then place the backrest on the carrierlock bracket.

1. Backrest2. Rear carrier

1. Passenger seat2. Passenger seat lock knob

1. Hole2. Bolt


1. Hole


Control functions

20

4. Align the holes in the rear carrier with thebolts on the carrier lock bracket, and thenplace the rear carrier on the carrier lockbracket.

5. Slide both the backrest and the rear car-rier backward until they stop.

6. Pull the carrier lock lever up to lock thebackrest and the rear carrier in place.Then, place the lever under the rear car-rier and secure it with the holder.

ESU10601

Fuel Make sure there is sufficient gasoline in thetank.

WARNINGEWS00071

Gasoline and gasoline vapors are ex-tremely flammable. To avoid fires and ex-plosions and to reduce the risk of injurywhen refueling, follow these instructions.

1. Before refueling, turn off the engine andbe sure that nobody is on the snowmo-bile. Never refuel while smoking, or whilein the vicinity of sparks, open flames, orother sources of ignition such as the pilotlights of water heaters and clothes dry-ers.

2. Do not overfill the fuel tank. Stop fillingwhen the fuel reaches the bottom of thefiller tube. Because fuel expands when itheats up, heat from the engine or the suncan cause fuel to spill out of the fuel tank.

1. Bolt


1. Filler tube2. Fuel level


Control functions

21

3. Wipe up any spilled fuel immediately.4. Be sure the fuel tank cap is closed se-

curely by turning it clockwise.

WARNINGEWS00680

Gasoline is poisonous and can cause inju-ry or death. Handle gasoline with care.Never siphon gasoline by mouth. If youshould swallow some gasoline or inhale alot of gasoline vapor, or get some gasolinein your eyes, see your doctor immediately.If gasoline spills on your skin, wash withsoap and water. If gasoline spills on yourclothing, change your clothes.

Your Yamaha engine has been designed touse regular unleaded gasoline with a pumpoctane number [(R+M)/2] of 86 or higher, or aresearch octane number of 91 or higher.

NOTICEECS00080

� Oxygenated fuels (gasohol) containinga maximum 5% of ethanol can be used,although richer jetting may be requiredto prevent engine damage. Consult aYamaha dealer. Gasohol containingmethanol is not recommended.

� Make sure that snow or ice does not en-ter the fuel tank when refueling.

� Do not use alcohol deicers or water ab-sorbing additives with oxygenated fuel.

� The fuel tank should be filled withstraight gasoline as specified.

ESU10871

Suspension The suspension can be adjusted to suit riderpreference. A softer setting, for example, mayprovide greater rider comfort, while a hardersetting may allow more precise handling andcontrol over certain types of terrain or ridingconditions.If you are not familiar with suspension adjust-ments, have a Yamaha dealer make theseadjustments.ESU10893

Adjusting the spring preload of the front shock absorbers

WARNINGEWS00720

The spring preload of the left and rightshock absorbers must be adjusted to thesame setting. Uneven settings can causepoor handling and loss of stability.

The spring preload can be adjusted by turningthe adjusting nuts.Adjust the spring preload as follows.

Recommended fuel:REGULAR UNLEADED GASOLINE ONLY

Fuel tank capacity:39.3 L (10.38 US gal, 8.65 Imp.gal)

1. Locknut2. Distance A3. Spring preload adjusting nut

(a)

(b)

13

2


Control functions

22

1. Loosen the locknut.2. To increase the spring preload and there-

by harden the suspension, turn the ad-justing nut in direction (a). To decreasethe spring preload and thereby soften thesuspension, turn the adjusting nut in di-rection (b).

TIPThe spring preload setting is determined bymeasuring distance A, shown in the illustra-tion. The longer distance A is, the higher thespring preload; the shorter distance A is, thelower the spring preload.

3. Tighten the locknut to the specifiedtorque. NOTICE: Always tighten thelocknut against the adjusting nut, andthen tighten the locknut to the speci-fied torque. [ECS00860]

ESU13132

Adjusting the spring preload of the center shock absorber and the rear torsion springs The spring preload can be adjusted by turningthe adjusting nut on the center shock absorb-er and the adjusters on the rear torsionsprings. Adjust the spring preload as follows.

Center shock absorber

1. Loosen the locknut.2. To increase the spring preload and there-

by harden the suspension, turn the ad-justing nut in direction (a). To decreasethe spring preload and thereby soften thesuspension, turn the adjusting nut in di-rection (b).

TIPThe spring preload setting is determined bymeasuring distance A, shown in the illustra-tion. The longer distance A is, the higher thespring preload; the shorter distance A is, thelower the spring preload.

3. Tighten the locknut to the specifiedtorque. NOTICE: Always tighten thelocknut against the adjusting nut, andthen tighten the locknut to the speci-fied torque. [ECS00860]

Spring preload setting*:Minimum (soft):

161 mm (6.34 in)Standard:

162 mm (6.38 in)Maximum (hard):

172 mm (6.77 in)* Distance A changes 1.5 mm (0.06 in)

with each full turn of the adjusting nut.

Tightening torque:Locknut:

42 Nm (4.2 m·kgf, 30 ft·lbf)

1. Spring preload adjusting nut2. Distance A3. Locknut

Spring preload setting*:Minimum (soft):

111.5 mm (4.39 in)Standard:

112.5 mm (4.43 in)Maximum (hard):

122.5 mm (4.82 in)* Distance A changes 1.5 mm (0.06 in)

with each full turn of the adjusting nut.

(a)

(b)

2

1

3


Control functions

23

Rear torsion springs

WARNINGEWS00750

The left and right spring preloads must beadjusted to the same setting. Uneven set-tings can cause poor handling and loss ofstability.

To increase the spring preload and therebyharden the suspension, turn the adjuster in di-rection (a). To decrease the spring preloadand thereby soften the suspension, turn theadjuster in direction (b).

ESU13092

Adjusting the 2-up adjusting blocks

WARNINGEWS00760

Make sure that the 2-up adjusting blocksare installed in the same position on bothsides of the snowmobile, otherwise poorhandling and loss of stability may result.

The spring force can be adjusted by changingthe position of the 2-up adjusting blocks.

TIP� Be sure to make this adjustment when

there is no load (rider or cargo) on thesnowmobile.

� Use the special tools included in the own-er’s tool kit to make the adjustment.

1. Insert the special tools into the 2-up ad-justing block as shown.


42 Nm (4.2 m·kgf, 30 ft·lbf)

1. Spring preload adjuster

Spring preload setting:Minimum (soft):

SStandard:

MMaximum (hard):

H

(a) (b)

1. 2-up adjusting block


Control functions

24

2. Pull the lock pin and turn the special toolsto change the block position.

3. Release the lock pin.4. Remove the special tools from the 2-up

adjusting block.ESU11033

Adjusting the control rods

WARNINGEWS00770

The left and right adjusting nuts must beset to the same position. Uneven settingscan cause poor handling and loss of sta-bility.

The weight transfer can be adjusted by turn-ing the adjusting nuts on the control rods.1. Loosen the locknut while holding the ad-

justing nut.

2. To increase weight transfer, turn the ad-justing nut in direction (a), and to de-crease weight transfer, turn it in direction(b). WARNING! Never adjust the con-trol rods beyond the maximum set-ting, indicated by red paint; otherwise,they could be damaged, which couldlead to an accident or injury. [EWS00173]

1. 2-up position (rider and passenger)2. Solo rider position3. Special tool4. Lock pin

1. Locknut2. Control rod adjusting nut


Control functions

25

3. Tighten the locknut while holding the ad-justing nut in place.

1. Red paint area2. Adjustable range3. Standard position

Locknut tightening torque:25 Nm (2.5 m·kgf, 18 ft·lbf)


Pre-operation checks

26

ESU11071

Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition.Always follow the inspection and maintenance procedures and schedules described in theOwner’s Manual.

WARNINGEWS00191

Failure to inspect or maintain the vehicle properly increases the possibility of an acci-dent or equipment damage. Do not operate the vehicle if you find any problem. If a prob-lem cannot be corrected by the procedures provided in this manual, have the vehicleinspected by a Yamaha dealer.

ESU11080

Pre-operation check list ITEM CHECKS PAGE

Fuel• Check fuel level.• Refuel if necessary.• Check fuel line for leakage.

20

Engine oil

• Check oil level in engine.• If necessary, add recommended oil to specified

level.• Check vehicle for oil leakage.

44

Coolant • Check coolant level.• Add if necessary. 47

V-belt • Check for wear and damage.• Replace if necessary. 49

Drive guard • Make sure that drive guard is tightened securely.• Check the drive guard mounts for damage. 16

Brake

• Check operation.• If soft or spongy, have Yamaha dealer bleed hy-

draulic system.• Check brake pads for wear.• Replace if necessary.• Check fluid level in master cylinder.• If necessary, add recommended brake fluid to

specified level.• Check hydraulic system for leakage.

53

Air filter• Check that there is no snow under the air filter ele-

ment.• If necessary, brush off the snow.

42

Tool kit and recommended equipment • Check for proper placement. 40

Shroud latches • Make sure that the shroud latches are hooked. 16

Skis and ski runners• Check for wear and damage.• If necessary, have Yamaha dealer replace skis or

ski runners.55


Pre-operation checks

27

Drive track • Check for deflection, wear and damage.• If necessary, have Yamaha dealer replace track. 57

Slide runners• Check for wear and damage.• If necessary, have Yamaha dealer replace slide

runners.57

Steering • Check for excessive free play. 56

Lights, signals and switch-es

• Check operation.• Correct if necessary. 13, 13, 61, 62

Throttle lever • Make sure that operation is smooth and spring back to its home position when released. 7

Throttle override system (T.O.R.S.)

• Check the T.O.R.S. for proper operation.• If system is defective, have Yamaha dealer check

vehicle.42

ITEM CHECKS PAGE


Operation

28

ESU11292

Starting the engine Read the Owner’s Manual carefully to be-come familiar with all controls. If there is acontrol or function you do not understand, askyour Yamaha dealer.

WARNINGEWS00201

Failure to familiarize yourself with the con-trols can lead to loss of control, whichcould cause an accident or injury.

1. Apply the parking brake.

2. Be sure the engine stop switch is in therun position. The starter motor cannot beoperated when the engine stop switch isin the off position.

3. Fully open the starter (choke) lever.

TIPThe starter (choke) lever is not required whenthe engine is warm. Move the starter (choke)lever to the closed position.

4. Turn the main switch to the start positionand release it when the engine starts.NOTICE: Release the switch immedi-ately after the engine starts. If the en-gine fails to start, release the switch,wait a few seconds, then try again.Each attempt should be as short aspossible to preserve the battery. Donot crank the engine more than 10seconds on any one attempt. [ECS00331]

5. Warm up the engine, and then close thestarter (choke) lever when the engineruns smoothly.

1. Starter (choke) lever2. Fully open position (cold engine starting)3. Half-open position (warming engine up)4. Closed position (warm engine starting)

1. Start


Operation

29

6. Be sure the low coolant temperature indi-cator light has gone out before operation.(See page 10 for detailed informationabout the indicator light.)

ESU11310

Break-in There is never a more important period in thelife of your engine than the period between 0and 500 km (300 mi). For this reason, youshould read the following material carefully.Since the engine is brand new, do not put anexcessive load on it for the first 500 km (300mi). The various parts in the engine wear andpolish themselves to the correct operatingclearances. During this period, prolonged full-throttle operation or any condition that mightresult in engine overheating must be avoided.Operating your snowmobile for the first timeStart the engine and let it idle for 15 minutes.0–160 km (0–100 mi)Avoid prolonged operation above 6000 r/min.160–500 km (100–300 mi)Avoid prolonged operation above 8000 r/min.500 km (300 mi) and beyondThe snowmobile can now be operated nor-mally.

NOTICEECS00340

� After 800 km (500 mi) of operation, theengine oil must be changed and the oilfilter cartridge replaced.

� If any engine trouble should occur dur-ing the engine break-in period, immedi-ately have a Yamaha dealer check thesnowmobile.

ESU11333

Riding your snowmobile Getting to know your snowmobile

WARNINGEWS00211

To avoid severe injury or death:

� Keep both hands on the handlebar dur-ing operation.

� Never put your feet outside the runningboards.

� Avoid higher speeds or more difficultmaneuvers until you have become thor-oughly familiar with your snowmobileand all of its controls.

A snowmobile is a rider active vehicle, andyour riding position and your balance are thetwo basic factors of maneuvering your snow-mobile.Riding your snowmobile requires skills ac-quired through practice over a period of time.Take the time to learn the basic techniqueswell before attempting more difficult maneu-vers.Riding your new snowmobile can be a veryenjoyable activity, providing you with hours ofpleasure. However, it is essential to familiar-ize yourself with the operation of the snowmo-bile to achieve the skill necessary to enjoyriding safely. Before operating the snowmo-bile, read this Owner’s Manual completelyand understand the operation of the controls.Pay particular attention to the safety informa-tion on page 3.Please read all warning and notice labels onyour snowmobile. Also, read the Snowmobil-er’s Safety Handbook that is supplied withyour snowmobile.Learning to ride your snowmobileBefore you ride, always perform the pre-oper-ation checks listed on page 26. The short timespent checking the condition of the snowmo-bile will be rewarded with added safety and amore reliable snowmobile. Always wear theproper clothing for both warmth and to helpprotect you from injury if an accident occurs.Become familiar with operating your snowmo-bile at low speeds, even if you are an experi-enced rider. Do not attempt to operate at


Operation

30

maximum performance until you are totally fa-miliar with the snowmobile’s handling andperformance characteristics.The beginning operator should select a largeflat area to become familiar with the snowmo-bile. Make sure that this area is free of obsta-cles and other traffic. You should practicecontrol of the throttle and brake, and masterturning techniques in this area before tryingmore difficult terrain.Set the parking brake and follow the instruc-tions on page 28 to start the engine. Once theengine has warmed up, you are ready to be-gin riding your snowmobile.To start out and accelerate1. With the engine idling, release the park-

ing brake.2. Apply the throttle slowly and smoothly.

The V-belt clutch will engage and you willstart to accelerate. WARNING! Do notallow anyone to stand behind thesnowmobile when starting the engine.A broken track, track fittings, or debristhrown by the track could be danger-ous to bystanders. [EWS00690]

Braking

WARNINGEWS00220

� Many surfaces such as ice and hard-packed snow require much longer stop-ping distances. Be alert, plan ahead, andbegin decelerating early.

� Improper use of the brake can cause thedrive track to lose traction, reduce con-trol, and increase the possibility of anaccident.

When slowing down or stopping, release thethrottle and apply the brake gently—not sud-denly.TurningFor most snow surfaces, “body English” is thekey to turning.

As you approach a curve, slow down and be-gin to turn the handlebar in the desired direc-tion. As you do so, put your weight on therunning board to the inside of the turn andlean your upper body into the turn.

This procedure should be practiced at lowspeeds many times, in a large flat area with noobstacles. Once you have learned this tech-nique, you should be able to perform it at high-er speeds or in tighter curves. Lean more asthe turn gets sharper or is made at higherspeeds.Improper riding techniques such as abruptthrottle changes, excessive braking, incorrectbody movements, or too much speed for thesharpness of the turn may cause the snow-mobile to tip.If your snowmobile begins to tip while turning,lean more into the turn to regain balance. Ifnecessary, gradually let off on the throttle orsteer to the outside of the turn.Remember:Avoid higher speeds until you are thoroughlyfamiliar with the operation of your snowmo-bile.Riding uphill

WARNINGEWS00231

Operation on slopes can lead to loss ofcontrol if proper techniques are not used.Follow these instructions to reduce your


Operation

31

risk of an accident. Do not try steeper ormore difficult inclines until you have de-veloped your skill on gentle slopes.

You should practice first on gentle slopes. Trymore difficult climbs only after you have de-veloped your skill. As you approach a hill, ac-celerate before you start the climb, and thenreduce the throttle to prevent track slippage. Itis also important to keep your weight on theuphill side at all times. On climbs straight upthe hill, this can be accomplished by leaningforward and, on steeper inclines, standing onthe running boards and leaning forward overthe handlebar. (Also see “Traversing aslope”.)

Slow down as you reach the crest of the hill,and be prepared to react to obstacles, sharpdrops, or other vehicles or people which maybe on the other side. If you are unable to con-tinue up a hill, do not spin the track. Stop theengine and set the parking brake. Then pullthe rear of the snowmobile around to point thesnowmobile back down the hill. When thesnowmobile is pointed downhill, mount yoursnowmobile from the uphill side. Restart theengine, release the parking brake, and de-scend the hill.

Riding downhill

WARNINGEWS00240

Use extra caution when applying the brakeduring a descent. Excessive braking willcause the drive track to lock, causing aloss of control.

When riding downhill, keep speed to a mini-mum. It is important to apply just enoughthrottle to keep the clutch engaged while de-scending the hill. This will allow you to use en-gine compression to help slow thesnowmobile, and to keep the snowmobilefrom rolling freely down the hill. Also apply thebrake frequently, with light pressure.

Traversing a slope

WARNINGEWS00251

Driving across the face of a slope (“side-hilling”) can lead to overturn or loss ofcontrol if proper techniques are not used.Follow these instructions to reduce yourrisk of an accident. Do not try steeper ormore difficult inclines until you have de-veloped your skill on gentle slopes.

Traversing a slope requires you to properlyposition your weight to maintain proper bal-ance. As you travel across the slope, leanyour body to position your weight towards theuphill side. A recommended riding position isto kneel with the knee of your downhill leg on


Operation

32

the seat and the foot of your uphill leg on therunning board. This position will make it easi-er for you to shift your body weight as needed.

Snow and ice are slippery, so be prepared forthe possibility that your snowmobile could be-gin to slip sideways on the slope. If this hap-pens, steer in the direction of the slide if thereare no obstacles in your path. As you regainproper balance, gradually steer again in thedirection you wish to travel.If your snowmobile starts to tip, steer downthe hill to regain balance. WARNING! If youare unable to maintain correct balance,and your snowmobile is going to tip over,dismount your snowmobile immediatelyon the uphill side to avoid being hit orcaught under the snowmobile as it tipsover. [EWS00261]

Ice or icy surface

WARNINGEWS00270

When you have to operate on ice or icysurfaces, drive slowly and cautiously.Avoid accelerating, turning, and brakingrapidly. Steering is minimal and uncon-trolled spins are an ever-present danger.

Operating on ice or icy surfaces can be verydangerous. Traction for turning, stopping, andstarting is much less than that on snow.

Hard-packed snowIt can be more difficult to negotiate on hard-packed snow as both the skis and drive trackdo not have as much traction as when thesnowmobile is operated on fresh snow. Avoidrapid acceleration, turning, and braking.Operation on surfaces other than snow or iceOperation of your snowmobile on surfacesother than snow or ice should be avoided. Op-eration under such conditions will damage orresult in rapid wear of the ski runners, drivetrack, slide runners, and drive sprockets. Op-eration of the snowmobile on the followingsurfaces should be avoided at all times:� Dirt� Sand� Rocks� Grass� Bare pavementOther surfaces that should be avoided for thesake of drive track and slide runner life are:� Glare ice surfaces� Snow mixed with a lot of dirt and sandAll of the above surfaces have one thing incommon in regard to drive track and slide run-ners: little or no lubricating ability. Drive trackand all slide rail systems require lubrication(snow or water) between the slide runnersand the slide metal. In the absence of lubrica-tion, the slide runners will rapidly wear and insevere cases, literally melt away, and thedrive track will be subject to damage or failure.Also traction aids such as studs, cleats, etc.,may cause further track damage or failure.

WARNINGEWS00280

Drive track damage or failure could resultin loss of braking ability and snowmobilecontrol, which could cause an accident.


Operation

33

� Always check the drive track for damageor maladjustment before operating thesnowmobile.

� Do not operate the snowmobile if youfind damage to the drive track.

NOTICEECS00350

Ride on fresh snow frequently. Operatingon ice or hard-packed snow will rapidlywear the slide runners.

ESU11350

Maximizing drive track life RecommendationsTrack tensionDuring initial break-in, the new drive track willtend to stretch quickly as the track settles. Besure to correct the track tension and align-ment frequently. (See page 57 for adjustmentprocedures.) A loose track can slip (ratchet),derail or catch on suspension parts causingsevere damage. Do not overtighten the drivetrack, otherwise it may increase the frictionbetween the track and the slide runners, re-sulting in the rapid wear of both components.Also, this may put an excessive load on thesuspension components, resulting in compo-nent failure.Marginal snowThe drive track and the slide runners are lubri-cated and cooled by snow and water. To pre-vent the drive track and slide runners fromoverheating, avoid sustained high-speed us-age in areas such as icy trails, frozen lakesand rivers that have minimal snow coverage.An overheated track will be weakened inter-nally, which may cause failure or damage.Off-trail ridingAvoid off-trail riding until there is sufficientsnow coverage. It generally takes several feetof snow to provide a good overall base toproperly cover debris, such as rocks, logs,

etc. If snow coverage is not sufficient, stay ontrails to avoid impact damage to the drivetrack.Studded trackIn general, track life will be shortened whenstuds are installed. Drilling stud holes into thedrive track will cut the internal fibers, whichweakens the track. Avoid spinning the drivetrack. Studs may catch on an object and pullout of the track, leaving tears and damagearound the already weakened area. To mini-mize possible damage, consult your studmanufacturer for installation and stud patternrecommendations.Yamaha does not recommend track stud-ding.ESU11392

Driving

WARNINGEWS00300

Be sure to read the “SAFETY INFORMA-TION” section on page 3 and the “Ridingyour snowmobile” section on page 29carefully before operating the snowmo-bile.

TIPMake sure that the engine is warmed upenough before riding.

WARNINGEWS00310

� Make sure that the throttle lever is fullyreleased and the snowmobile is at a fullstop before shifting.

� Be sure to slide the shift lever to “FWD”or “REV” until it stops completely andonly while the engine is idling.

� Make sure that the area behind thesnowmobile is clear before reversing.Watch behind.


Operation

34

� Reduce speed and avoid sharp turningwhen operating the snowmobile in re-verse.

1. To select the desired operating position,pull the shift lever out, slide it to “FWD” orto “REV” until it stops, and then release it.NOTICE: Do not shift from “FWD” to“REV” or from “REV” to “FWD” whilethe snowmobile is moving, as thedrive train could be damaged. [ECS00811]

TIPThe reverse buzzer beeps while the shift leveris in reverse.

2. Release the parking brake by moving theparking brake lever to the right.

3. Press the throttle lever slowly to move thesnowmobile.

4. Turn the handlebar in the desired direc-tion.

5. Squeeze the brake lever to stop thesnowmobile.

6. Apply the parking brake by moving theparking brake lever to the left.

ESU11411

Stopping the engine � Turn the main switch to the off position to

stop the engine.

� Push down the engine stop switch to stopthe engine in an emergency.

1. Pull out.2. Slide to “FWD” (forward).3. Release.

1. Pull out.2. Slide to “REV” (reverse).3. Release.

1. Off


Operation

35

ESU11420

Transporting When transporting your snowmobile on a trail-er or in a truck, observe the following recom-mendations to help protect it from damage:� Make sure that the fuel level in the fuel tank

is lower than the bottom of the carburetors.Otherwise, the vibration and bumps fromthe road surface could make it possible forfuel to flow through the carburetors into thecylinders. This can result in “hydrostaticlock,” a condition where the engine cannotrotate because of fuel accumulated in theengine. Severe engine damage can resultfrom hydrostatic lock. When possible, thefuel tank should be empty during transpor-tation, especially if the trip takes longer than30 minutes.

� If transporting the snowmobile in an opentrailer or truck, put a tight fitting cover on thesnowmobile. A cover specifically designedfor your snowmobile is best. This will helpkeep foreign objects out of the cooling ventsin the shroud, and also help protect thesnowmobile against damage from debris onthe road.

� If transporting the snowmobile in an opentrailer or truck in areas where road salt isused, coat metal suspension surfaces light-ly with oil or another protectant. This will

help protect against corrosion. Be sure toclean the snowmobile when you get to yourdestination to remove any corrosive salts.


Periodic maintenance and adjustment

36

ESU11451

Periodic inspection, adjustment, and lubrication will keep your snowmobile in the safest andmost efficient condition possible. Safety is an obligation of the vehicle owner/operator. Themost important points of vehicle inspection, adjustment, and lubrication are explained on thefollowing pages.

WARNINGEWS00341

Failure to properly maintain the snowmobile or performing maintenance activities incor-rectly may increase your risk of injury or death during service or while using the snow-mobile. If you are not familiar with snowmobile service, have a Yamaha dealer performservice.

WARNINGEWS00700

Turn off the engine when performing maintenance unless otherwise specified.� A running engine has moving parts that can catch on body parts or clothing, and elec-

trical parts that can cause shocks or fires.� Running the engine while servicing can lead to eye injury, burns, fire, or carbon mon-

oxide poisoning–possibly leading to death. See page 3 for more information aboutcarbon monoxide.

Maintenance, replacement, or repair of the emission control devices and systems maybe performed by any repair establishment or individual that is certified (if applicable).Proper periodic maintenance of your snowmobile is important in order to enjoy long, pleasur-able use. Especially important are the maintenance services related to emission control. Thesecontrols not only function to ensure cleaner air, but are also vital to proper engine operation andmaximum performance. In the following periodic maintenance charts, the services related toemission control are grouped separately. These services require specialized data, knowledge,and equipment. Yamaha dealers are trained and equipped to perform these particular services.ESU11461

Periodic maintenance chart for the emission control system Items marked with an asterisk should be performed by a Yamaha dealer as they require specialtools, data and technical skills.

ITEM REMARKS

INITIAL EVERY

PAGE1 month

or 800 km (500 mi) (40 hr)

Seasonally or

4000 km (2500 mi) (200 hr)

Spark plugs• Check condition.• Adjust gap and clean.• Replace if necessary.

40

* Valve clearance • Check and adjust valve clear-ance when engine is cold.

Every 40000 km (25000 mi) 44



37

* Crankcase breather system

• Check breather hose for cracks or damage.

• Replace if necessary.—

* Fuel filter • Check condition.• Replace if necessary. —

* Fuel line• Check fuel hose for cracks or

damage.• Replace if necessary.

—

* Idle speed • Check and adjust idle speed. 41

* Carburetors

• Adjust synchronization. —

• Adjust the jets.Whenever operating

condition (elevation/tem-perature) is changed.

43

* Exhaust system• Check for leakage.• Tighten or replace gasket if

necessary.—

ITEM REMARKS

INITIAL EVERY

PAGE1 month

or 800 km (500 mi) (40 hr)

Seasonally or

4000 km (2500 mi) (200 hr)



38

ESU11561

General maintenance and lubrication chart

ITEM REMARKS

INITIAL EVERY

PAGE1 month

or 800 km (500 mi) (40 hr)

Seasonally or

4000 km (2500 mi) (200 hr)

Engine oil • Change (warm engine before draining) 44

* Engine oil filter car-tridge • Replace.

Every 20000 km (12000 mi)

44

* Cooling system• Check coolant level.• Air bleed the cooling system if

necessary.47

* Primary and sec-ondary clutches

• Check engagement and shift speed.

• Adjust if necessary.

—

Whenever operating ele-vation is changed. —

• Inspect sheaves for wear and damage.

• Inspect weights/rollers and bushings for wear for primary.

• Inspect ramp shoes/bushings for wear for secondary.

• Replace if necessary.

—

• Lubricate with specified grease. —

* Drive chain • Check chain slack.• Adjust if necessary.

Initial at 500 km (300 mi) and every 800 km (500

mi) thereafter.52

* Drive chain oil• Check oil level. 52

• Change. 52

* Brake and parking brake

• Adjust free play and/or replace pads if necessary. 53

• Change brake fluid. See TIP following this chart. 53

Control cables• Make sure that operation is

smooth.• Lubricate if necessary.

60

* Disc brake installa-tion

• Check for slight free play.• Lubricate shaft with specified

grease as required.

Every 1600 km (1000 mi) —

* Slide runners • Check for wear and damage.• Replace if necessary. 57

* Skis and ski run-ners

• Check for wear and damage.• Replace if necessary. 55



39

TIPBrake system:� After disassembling the master cylinder or caliper cylinder, always change the brake fluid.

Regularly check the brake fluid level and add fluid if necessary.� Replace the oil seals of the master cylinder and caliper cylinder every two years.� Replace the brake hose every four years, or if cracked or damaged.

* Steering system • Check toe-out.• Adjust if necessary. 56

* Steering bearings

• Check bearing assemblies for looseness.

• Lubricate with specified grease.

—

* Skis and front shock absorbers

• Lubricate with specified grease. 60

* Suspension compo-nent

• Lubricate with specified grease. 60

Fittings and fasten-ers

• Make sure that all nuts, bolts and screws are properly tight-ened.

• Tighten if necessary.

62

* Battery • Check condition.• Charge if necessary. 62

ITEM REMARKS

INITIAL EVERY

PAGE1 month

or 800 km (500 mi) (40 hr)

Seasonally or

4000 km (2500 mi) (200 hr)



40

ESU11740

Tool kit The owner’s tool kit has the tools which aresufficient for most periodic maintenance andminor repairs. A torque wrench is also neces-sary to properly tighten nuts and bolts.

NOTICEECS00360

Before starting the engine, make sure thatthe tool kit is properly seated in its holderand is securely fastened.

TIPIf you do not have a torque wrench availableduring a service operation requiring one, takeyour snowmobile to a Yamaha dealer tocheck the torque settings and adjust them ifnecessary.

ESU11782

Checking the spark plugs The spark plug is an important engine compo-nent and is easy to inspect. The condition ofthe spark plug can indicate the condition ofthe engine.Check the coloration on the white porcelaininsulator around the center electrode. Theideal coloration at this point is a medium to alight tan color for a snowmobile that is beingridden normally. If a spark plug shows a dis-tinctly different color, there could be some-thing wrong with the engine. For example, avery white center electrode porcelain color

could indicate an intake track air leak or car-buretion problem for that cylinder. Do not at-tempt to diagnose such problems yourself.Instead, take the snowmobile to a Yamahadealer for inspection and possible repairs.You should periodically remove and inspectthe spark plug because heat and deposits willcause a spark plug to slowly break down anderode. Consult a Yamaha dealer beforechanging to a different type of spark plug.

WARNINGEWS00710

Be sure to use the specified spark plugand spark plug cap. Otherwise, theT.O.R.S. may not work properly.

Spark plugs are produced in several differentthread lengths. The thread length or reach isthe distance from the spark plug gasket seatto the end of the threaded portion. If the reachis too long, overheating and engine damagemay result. If the reach is too short, spark plugfouling and poor performance may result. Al-so, if the reach is too short, carbon will form onthe exposed threads resulting in combustionchamber hot spots and thread damage. Al-ways use a spark plug with the specifiedreach.

1. Tool kit

Specified spark plug:Manufacturer:

NGKModel:

CR8E

Spark plug reach:19.0 mm (0.75 in)



41

Before installing any spark plug, measure theelectrode gap with a wire thickness gaugeand adjust to specification.

When installing the spark plug, always cleanthe gasket surface. Wipe off any grime fromthe threads and tighten the spark plug to thespecified torque.

NOTICEECS00382

Make sure that the spark plug caps are se-curely installed. Otherwise the spark plugcaps could be damaged due to engine vi-bration.

ESU11793

Adjusting the engine idling speed 1. Start the engine and warm it up.

TIPRefer to the “Starting the engine” section onpage 28.

2. Turn the throttle stop screw in or out toadjust the engine idling speed.

ESU11821

Adjusting the throttle cable free play

NOTICEECS00410

Be sure to adjust the engine idling speedfirst.

1. Loosen the locknut.2. Turn the adjusting bolt in or out until the

specified throttle cable free play is ob-tained.

3. Tighten the locknut.

1. Spark plug gap2. Spark plug reach

Spark plug gap:0.7–0.8 mm (0.028–0.031 in)

Spark plug tightening torque:12.5 Nm (1.25 m·kgf, 9 ft·lbf)

1. Throttle stop screw

Standard engine idling speed:1300–1500 r/min

1. Locknut2. Throttle cable free play adjusting bolt3. Throttle cable free play

Throttle cable free play:2.0–3.0 mm (0.08–0.12 in)



42

ESU11862

Checking the throttle override system (T.O.R.S.) Check the T.O.R.S. for proper operation.

WARNINGEWS00352

When checking the T.O.R.S., take precau-tions to avoid snowmobile movementwhich could cause an accident:� Make sure that the throttle lever moves

smoothly with the engine off beforechecking the T.O.R.S.

� Make sure that the parking brake is ap-plied.

� Do not rev the engine to the point thatthe clutch engages.

1. Start the engine.

TIPRefer to the “Starting the engine” section onpage 28.

2. Hold the pivot point of the throttle leveraway from the throttle switch by puttingyour thumb (above) and forefinger (be-low) between the throttle lever pivot andthe engine stop switch housing.While holding the pivot point as describedabove, press the throttle lever gradually.

The T.O.R.S. will be activated and theengine speed will be limited to less thanthe clutch engagement speed. (See page72 for the clutch engagement speed.)WARNING! If the engine speed doesnot decrease to less than the clutchengagement speed, stop the engineby turning the main switch to the offposition and consult a Yamaha dealer.Operating the snowmobile with a mal-functioning T.O.R.S. could result inloss of control. [EWS00362]

ESU11871

Checking the air filter Always check that there is no snow under theair filter element frame.1. Unhook the air filter case cover fasteners.

1. Throttle lever pivot2. Engine stop switch housing3. Throttle lever



43

2. Remove the air filter case cover.3. Lift up the air filter element frame and

check the air filter element. If there is anysnow on the air filter element, remove theelement, brush off the snow, and then in-stall the air filter element.

4. Place the air filter element frame in theoriginal position, and then install the airfilter case cover.

5. Install the air filter case cover by hookingthe fasteners.

TIPAfter riding the snowmobile, make sure thatthere is no snow under the air filter elementframe.

ESU11910

Carburetors The carburetors are an important part of theengine and its emission control system, whichrequire very sophisticated adjustment. There-fore, carburetor adjustments should be left toa Yamaha dealer, who has the necessary pro-fessional knowledge and experience.ESU11941

High-altitude settings Operating at high altitude reduces the perfor-mance of a gasoline engine about 3% for ev-ery 305 m (1000 ft) of elevation. This isbecause there is less air as altitude increases.Less air means less oxygen available forcombustion.Your snowmobile can be adjusted to over-come most of the problems found in high-alti-tude riding. Carburetor adjustments are themost important. Less air at high altitudemakes the air/fuel ratio too rich, which cancause poor performance. Common problemsare hard starting, bogging, and plug fouling.Proper carburetion adjustments will correctthe air/fuel ratio. Be sure to have a Yamahadealer make these adjustments.Remember:Less air at higher altitude means there is lesshorsepower available, even with proper car-buretion. Expect acceleration and top speedto be reduced at higher altitudes.To overcome operating with less power athigh altitudes, your snowmobile may also re-quire different settings for the drive chaingears and V-belt clutch to avoid poor perfor-mance and rapid wear. If you plan to operateyour snowmobile at an altitude different fromthe area where you bought it, be sure to con-



44

sult a Yamaha dealer. The dealer can tell youif there are any changes necessary for the al-titude where you plan to ride. NOTICE: Thedrive chain gears and V-belt clutch shouldbe adjusted when operating above a highaltitude of 900 m (3000 ft). Consult aYamaha dealer. [ECS00431]

ESU11950

Valve clearance The valve clearance changes with use, result-ing in improper air-fuel mixture and/or enginenoise. To prevent this from occurring, thevalve clearance must be adjusted by aYamaha dealer at the intervals specified inthe periodic maintenance chart.ESU11975

Engine oil and oil filter cartridge The engine oil level should be checked beforeeach use. In addition, the oil must be changedand the oil filter cartridge replaced at the inter-vals specified in the periodic maintenanceand lubrication chart.

WARNINGEWS00370

Engine oil is extremely hot immediately af-ter the engine is turned off. Coming intocontact with or getting any engine oil onyour clothes could result in burns.

NOTICEECS00480

� Do not run the engine with too much ornot enough oil in the oil tank. Oil couldspray out or the engine could be dam-aged.

� Be sure to change the engine oil afterthe first 800 km (500 mi) of operation,and every 4000 km (2500 mi) thereafteror at the start of a new season, other-wise the engine will wear quickly.

� The oil filter cartridge should be re-placed every 20000 km (12000 mi) of op-eration.

To check the engine oil level1. Place the snowmobile on a level surface

and apply the parking brake.

2. Start the engine, warm it up for 10–15minutes, and then turn it off.

TIP� The engine can also be warmed up by op-

erating the snowmobile for 10–15 minutes.� After operating the snowmobile, allow the

engine to idle for at least 10 seconds beforeturning it off.

3. Open the shroud.4. Disconnect the oil level gauge coupler.

NOTICE: Disconnect the oil levelgauge coupler before removing the oilfiller cap, otherwise the cable couldtwist and break. [ECS00452]

1. Oil level gauge coupler2. Oil filler cap



45

5. Remove the oil filler cap, wipe the dipstickclean, insert it back into the oil filler hole(without screwing it in), and then removeit again to check the oil level.

TIPThe engine oil should be between the “H” and“L” level marks on the dipstick.

6. If the engine oil is below the “L” levelmark, add sufficient oil of the recom-mended type to raise it to the “H” levelmark. (See page 72 for the recommend-ed oil.) NOTICE: When adding the en-gine oil, be careful not to fill above the“H” level mark on the dipstick. Useonly the recommended oil. (See page72.) Make sure that no foreign materialenters the engine oil tank. [ECS00462]

7. Insert the dipstick into the oil filler hole,and then tighten the oil filler cap.

8. Connect the oil level gauge coupler.9. Close the shroud.To change the engine oil (with or without oil fil-ter cartridge replacement)1. Place the snowmobile on a level surface

and apply the parking brake.2. Start the engine, warm it up for several

minutes, and then turn it off.3. Open the shroud.4. Remove the right side cover and the bot-

tom panel.

5. Place an oil pan under the oil tank to col-lect the used oil.

6. Disconnect the oil level gauge coupler.

1. Oil filler cap2. Dipstick

1. “H” level mark2. “L” level mark

1. Right side cover

1. Bottom panel

1



46

7. Remove the oil filler cap, cylinder headcap, and drain bolt to drain the oil fromthe oil tank.

8. Place an oil pan under the engine to col-lect the used oil.

9. Remove the engine oil drain bolt to drainthe oil from the crankcase.

TIP� A “ ” mark is stamped on the crankcase

near the engine oil drain bolt.� Dispose of used oil according to local regu-

lations.� Skip steps 10–12 if the oil filter cartridge is

not being replaced.

10. Remove the oil filter cartridge with an oilfilter wrench.

TIPAn oil filter wrench is available at a Yamahadealer.

11. Apply a thin coat of engine oil to the O-ring of the new oil filter cartridge.

12. Install the new oil filter cartridge with anoil filter wrench, and then tighten it to thespecified torque.

1. Oil level gauge coupler2. Oil filler cap

1. Cylinder head cap

1. Engine oil drain bolt (oil tank)

1. Engine oil drain bolt (crankcase)2. “ ” mark

1. Oil filter cartridge

1

2

1



47

13. Install the engine oil drain bolts, and thentighten them to the specified torques.

14. Add 2.0 L (2.11 US qt, 1.76 Imp.qt) of therecommended engine oil to the oil tank,and then install and tighten the oil fillercap and the cylinder head cap.

15. Start the engine, warm it up for severalminutes, and then turn it off.

16. Add sufficient oil of the recommendedtype to raise it to the “H” level mark on thedipstick. (See above for the checking pro-cedure.) NOTICE: When adding the en-gine oil, be careful not to fill above the“H” level mark on the dipstick. Useonly the recommended oil. (See page72.) Make sure that no foreign materialenters the engine oil tank. [ECS00462]

17. Start the engine, and then let it idle forseveral minutes while checking it for oilleakage. If oil is leaking, immediately turnthe engine off and make sure that the en-gine oil drain bolt, oil tank drain bolt, cyl-inder head cap, and the oil filler cap areinstalled correctly.

18. Turn the engine off, and then connect theoil level gauge coupler. NOTICE: If oil isleaking or the oil level warning indica-tor comes on when the engine is run-ning, immediately turn the engine offand have a Yamaha dealer check thesnowmobile. Continuing to operatethe engine under such conditionscould cause severe engine damage.[ECS00471]

19. Install the bottom panel and the right sidecover, and then close the shroud.

ESU12002

Cooling system The coolant level should be checked beforeeach ride. In addition, the cooling systemmust be bled of air at the intervals specified inthe periodic maintenance and lubricationchart.

WARNINGEWS00380

Do not remove the coolant reservoir capwhen the engine is hot. Scalding hot fluidand steam may be blown out under pres-sure, which could cause serious injury.

Tightening torque:Oil filter cartridge:

17 Nm (1.7 m·kgf, 12 ft·lbf)

Tightening torques:Engine oil drain bolt (crankcase):

10 Nm (1.0 m·kgf, 7.2 ft·lbf)Engine oil drain bolt (oil tank):

16 Nm (1.6 m·kgf, 11 ft·lbf)

Recommended engine oil:See page 72.

Oil quantity:With oil filter cartridge replacement:

3.0 L (3.17 US qt, 2.64 Imp.qt)Without oil filter cartridge replacement:

2.8 L (2.96 US qt, 2.46 Imp.qt)Total amount:

3.7 L (3.91 US qt, 3.26 Imp.qt)



48

When the engine has cooled, place a thickrag or towel over the coolant reservoircap, and slowly rotate the cap counter-clockwise to the detent. This procedure al-lows any residual pressure to escape.When the hissing sound has stopped,press down on the cap while turning coun-terclockwise and remove it.

To check the coolant level1. Place the snowmobile on a level surface

and apply the parking brake.2. Open the shroud.3. Check the coolant level in the coolant

reservoir when the engine is cold. If thecoolant level is below the “COLD LEVEL”mark, add soft water until it reaches the“COLD LEVEL” mark. (See the followingsection “Replenishing the coolant” formore details.) NOTICE: Hard water orsalt water is harmful to the engineparts. You may use boiled or distilledwater, if soft water is not available.Tap water can be used temporarily inan emergency. [ECS00491]

Bleeding the cooling systemThe cooling system must be bled of air if thecoolant reservoir becomes empty, if air can beseen in the cooling system, or if there is acooling system leak. Consult a Yamaha deal-er.

NOTICEECS00500

Operating the engine with an improperlybled cooling system can cause overheat-ing and severe engine damage.

Replenishing the coolant1. Remove the coolant reservoir cap and

add coolant until it reaches the “COLDLEVEL” mark.

2. Start the engine and add coolant until thecoolant level does not go down, and thenstop the engine.

3. Fill the coolant reservoir with coolant untilit reaches the “COLD LEVEL” mark.

1. “COLD LEVEL” mark

1. “COLD LEVEL” mark2. Coolant reservoir cap

Recommended antifreeze:High-quality ethylene glycol antifreeze containing corrosion inhibitors

Antifreeze and water mixing ratio:3:2

Total amount:5.40 L (5.71 US qt, 4.75 Imp.qt)



49

4. Install the coolant reservoir cap.5. Check for any coolant leakage.

TIPIf you find any leaks, consult a Yamaha deal-er.

ESU12052

V-belt

WARNINGEWS00401

� Coming in contact with the rotating V-belt or clutch parts can cause severe in-jury or death. Never run the engine withthe drive guard removed.

� Make sure that the drive guard is tight-ened securely before operating thesnowmobile to protect against severeinjury or death from a broken V-belt orother part should it come off the snow-mobile while it is in operation.

NOTICEECS00830

Never run the engine with the V-belt re-moved. Clutch components can be dam-aged.

The V-belt should be checked before eachride.To check the V-belt1. Open the shroud and remove the drive

guard.2. Check the V-belt for wear and damage.

Replace if necessary.

3. Install the drive guard and close theshroud.

To replace and adjust the V-belt

WARNINGEWS00411

When installing a new V-belt, make surethat it is positioned properly. Otherwise,the V-belt clutch engagement speed willbe changed and the snowmobile maymove unexpectedly when the engine isstarted, which could cause an accident.

1. V-belt wear limit

New V-belt width:34.1 mm (1.34 in)

V-belt wear limit width:32.5 mm (1.28 in)



50

NOTICEECS00510

As the V-belt wears, adjustment may benecessary. To ensure proper clutch per-formance, the V-belt position should beadjusted by adding a spacer on each ad-justing bolt when the V-belt positionreaches 1.5 mm (0.06 in) below the edge ofthe secondary sheave assembly.Have a Yamaha dealer make this adjust-ment.

TIPApply the parking brake before replacing theV-belt.

1. Open the shroud and remove the driveguard.

2. Rotate the secondary sliding sheaveclockwise and push it so that it separatesfrom the secondary fixed sheave.

3. Pull the V-belt up over the secondaryfixed sheave.

4. Remove the V-belt from the secondarysheave assembly and primary sheaveassembly.

5. Temporarily install the new V-belt on thesecondary sheave assembly only, andthen measure the V-belt position. Do notforce the V-belt between the sheaves; thesecondary sliding and fixed sheavesmust touch each other.

1. Edge of the secondary sheave assembly2. Spacer3. V-belt position adjusting bolt

1. Secondary sliding sheave2. Secondary fixed sheave

1. V-belt



51

6. If the V-belt position is incorrect, adjust itby removing or adding a spacer on eachV-belt position adjusting bolt.

7. Tighten the V-belt position adjustingbolts.

8. Install the V-belt over the primary sheaveassembly.

1. Edge of the secondary sheave assembly2. V-belt position

Standard V-belt position:From 1.5 mm (0.06 in) above the edge of the secondary sheave assembly to 0.5 mm (0.02 in) below the edge

1. V-belt position adjusting bolt2. Spacer

V-belt position Adjustment

More than 1.5 mm (0.06 in) above the edge

Remove spacer

From 1.5 mm (0.06 in) above the edge to 0.5 mm (0.02 in) below the edge

Not necessary (It is correct.)

More than 0.5 mm (0.02 in) below the edge

Add spacer

V-belt position adjusting bolt tightening torque:

10 Nm (1.0 m·kgf, 7.2 ft·lbf)



52

9. Rotate the secondary sliding sheaveclockwise and push it so that it separatesfrom the secondary fixed sheave.

10. Install the V-belt between the secondarysliding and fixed sheaves.

11. Install the drive guard and close theshroud.

ESU12092

Drive chain housing To check the drive chain housing oil level1. Place the snowmobile on a level surface

and apply the parking brake.2. Remove the dipstick, wipe it off with a

clean rag, and then insert it back into thefiller hole.

3. Remove the dipstick and check that theoil is between the maximum and mini-mum level marks. If the oil is below theminimum level mark, add sufficient oil ofthe recommended type to raise it to themaximum level mark. NOTICE: Makesure that no foreign material entersthe drive chain housing. [ECS00531]

1. Secondary sliding sheave2. Secondary fixed sheave

1. V-belt

1. Dipstick

1. Maximum level mark2. Minimum level mark



53

4. Install the dipstick, making sure to alignthe notch in the dipstick handle with theprojection on the drive chain housing.

To adjust the chain tension1. Loosen the locknut.2. Turn the chain tension adjusting bolt

clockwise until it is finger tight, and thenloosen it 1/4 turn.

3. While holding the chain tension adjustingbolt with a wrench, tighten the locknut tothe specified torque.

ESU12132

Brake and parking brake

WARNINGEWS00440

� A soft, spongy feeling in the brake leverindicates a failure in the brake system.

� Do not operate the snowmobile if youfind any problems in the brake system.You could lose braking ability, whichcould lead to an accident. Ask a Yamahadealer to inspect and repair the brakesystem.

NOTICEECS00060

Make sure that the brake lever end doesnot project out over the handlebar end.This will help prevent brake lever damagewhen the snowmobile is placed on its sidefor service.

Test the brake at a low speed when startingout to make sure that it is working properly. Ifthe brake does not provide proper brakingperformance, inspect the brake for wear orbrake fluid leakage. (See the following sectionfor more details.)Checking the brake padsCheck the brake pads for wear.If the brake pads reach the wear limit, ask aYamaha dealer to replace them.

Recommended drive chain oil:SAE 75W or 80W API GL-3 Gear oil

1. Notch2. Projection


25 Nm (2.5 m·kgf, 18 ft·lbf)

1. Locknut2. Chain tension adjusting bolt

1. Brake pad wear indicator2. Brake pad wear limit



54

Checking the parking brake padsCheck the parking brake pads for wear bymeasuring the thickness of the pads. If theparking brake pads reach the wear limit, ask aYamaha dealer to replace them.

To adjust the parking brakeAs the parking brake pads wear, adjustmentmay be necessary to ensure proper brakeperformance.1. Loosen the parking brake pad locknut

and the parking brake pad adjusting bolt.2. Loosen the parking brake cable locknut.3. Turn the parking brake cable adjusting

bolt in or out to adjust the cable length.

4. Tighten the parking brake cable locknut.5. Turn the parking brake pad adjusting bolt

in or out to adjust the clearance betweenthe parking brake pads and the brakedisc.

6. Tighten the parking brake pad locknut.

Brake pad wear limit:7.5 mm (0.30 in)

1. Parking brake pad wear limit

Parking brake pad wear limit:1.2 mm (0.047 in)

1. Parking brake pad locknut2. Parking brake pad adjusting bolt3. Parking brake cable locknut4. Parking brake cable adjusting bolt5. Parking brake cable length

Parking brake cable length:43.5–46.5 mm (1.713–1.831 in)

1. Parking brake pad2. Brake disc3. Parking brake pad adjusting bolt4. Parking brake pad locknut

Parking brake pad to brake disc clear-ance (a) + (b):

1.5–2.0 mm (0.059–0.079 in)

43



55

Checking the brake fluid level

WARNINGEWS00460

Be careful that water does not enter themaster cylinder when refilling. Water willsignificantly lower the boiling point of thefluid and may result in vapor lock.If the brake fluid level goes down, consulta Yamaha dealer.

NOTICEECS00550

Brake fluid may deteriorate painted sur-faces or plastic parts. Never spill any fluid.If any is spilled, clean it up immediately.

Place the snowmobile on a level surface.Check that the brake fluid is above the lowerlevel and replenish when necessary.

Changing the brake fluid

WARNINGEWS00471

Make sure that the brake fluid and the fol-lowing parts are replaced by a Yamahadealer.

Brake fluid replacement is necessary whenthe following components are replaced duringthe periodic maintenance or if they are dam-aged or leaking.

� All oil seals of the master cylinder and cali-per cylinder

� The brake hoseESU12142

Skis and ski runners Check the skis and ski runners for wear anddamage. Replace if necessary.

NOTICEECS00560

Avoid scratching the skis when loadingand unloading the snowmobile, whenriding in areas with little or no snow, or onsharp edges such as concrete, curbs, etc.This will wear or damage the skis.

1. Lower level

Specified brake fluid:DOT 4

1. Ski runner wear limit

1. Ski wear limit

Ski runner wear limit:8 mm (0.3 in)

Ski wear limit:24 mm (0.9 in)



56

To align the skis1. Turn the handlebar so the skis face

straight ahead.2. Check the following for ski alignment:

� Skis are facing forward.� Ski toe-out (distance A – distance B) is

within specification.

3. If the alignment is not correct, consult aYamaha dealer.

ESU12163

Steering system Check the handlebar for excessive free play.To check the handlebar1. Push the handlebar up and down and

back and forth.2. Turn the handlebar slightly to the right

and left.

If excessive free play is felt, consult a Yamahadealer.

To adjust the handlebar height1. Remove the handlebar cover.

2. Loosen the handlebar bolts.

3. Move the handlebar up or down to adjustthe handlebar height to the desired posi-tion. NOTICE: Make sure that the pro-jection on the handlebar is notinstalled into the area shown. [ECS00571]

1. Distance A2. Distance B

Ski toe-out (distance A – distance B):0.0–15.0 mm (0.00–0.59 in)

1. Handlebar cover

1. Handlebar bolt



57

4. Tighten the front handlebar bolts to thespecified torque, and then tighten therear handlebar bolts to the specifiedtorque. NOTICE: Make sure each han-dlebar holder is installed so that thesmaller gap is facing forward. [ECS00582]

5. Install the handlebar cover.ESU12173

Drive track and slide runners Drive track

WARNINGEWS00480

A broken track, track fittings or debristhrown by the drive track could be danger-ous to an operator or bystanders. Observethe following precautions:� Do not allow anyone to stand behind the

snowmobile when the engine is running.� When the rear of the snowmobile is

raised to allow the drive track to spin, asuitable stand must be used to supportthe rear of the snowmobile. Never allowanyone to hold the rear of the snowmo-bile off the ground to allow the drivetrack to spin. Never allow anyone near arotating drive track.

� Inspect the drive track condition fre-quently. Replace damaged slide metal.Replace the drive track if it is damagedto the depth where fabric reinforcementmaterial is visible or support rods arebroken. Otherwise, track damage or fail-

1. Area where projection cannot be installed

1. Forward2. Small gap

Handlebar bolt tightening torque:23 Nm (2.3 m·kgf, 17 ft·lbf)



58

ure could result in loss of braking abilityand snowmobile control, which couldcause an accident.

Checking the drive track

WARNINGEWS00490

Do not operate the snowmobile if you finddamage to the drive track, or if it has beenmaladjusted. Drive track damage or failurecould result in loss of braking ability andsnowmobile control, which could causean accident.

Check the drive track for deflection, wear, anddamage.Adjust or replace if necessary. (See the fol-lowing section for more details.)

Measuring the drive track deflection1. Lay the snowmobile on its side.2. Measure the drive track deflection with a

spring scale. Pull at the center of the drivetrack with a force of 100 N (10 kgf, 22 lbf).

TIPMeasure the gap between the slide runnerand the edge of the track window. Measureboth sides.

3. If the deflection is incorrect, adjust thedrive track.

Adjusting the drive track1. Lift the rear of the snowmobile onto a suit-

able stand to raise the drive track off theground.

2. Loosen the rear axle nut.

1. Spring scale

1. Drive track deflection

Standard drive track deflection:30.0–35.0 mm (1.18–1.38 in)



59

3. Start the engine and rotate the drive trackone or two turns. Stop the engine.

4. Check the drive track alignment with theslide runners. If the alignment is incorrect,align the drive track by turning the left andright adjusting nuts.

Shifted to right

Shifted to left

1. Rear axle nut

1. Slide runner

Drive track alignment

Shifted to right Shifted to left

Left adjusting nut Turn out Turn in

Right adjust-ing nut Turn in Turn out

1. Left adjusting nut2. Right adjusting nut

1. Forward2. Gap3. Slide runner4. Drive track5. Slide metal

1. Forward2. Gap3. Slide runner4. Drive track5. Slide metal



60

5. Adjust the drive track deflection to speci-fication. NOTICE: The right and left ad-justing nuts should be turned an equalamount. [ECS00592]

6. Recheck alignment and deflection. If nec-essary, repeat steps 3 to 5 until the prop-er adjustment is achieved.

7. Tighten the rear axle nut.

Slide runnersCheck the slide runners for wear and dam-age.If the slide runners reach the wear limit, theyshould be replaced.

NOTICEECS00350

Ride on fresh snow frequently. Operatingon ice or hard-packed snow will rapidlywear the slide runners.

ESU12193

Lubrication Lubricate the following points with the speci-fied grease.

WARNINGEWS00511

Do not grease the throttle cable because itcould become frozen, which could causeloss of control. Apply a dab of grease ontothe cable end only.

Drive track deflection

More than specified

Less than specified

Left adjusting nut Turn in Turn out

Right adjust-ing nut Turn in Turn out

Rear axle nut tightening torque:75 Nm (7.5 m·kgf, 54 ft·lbf)

1. Slide runner2. Wear limit height

Slide runner wear limit height:10.5 mm (0.41 in)

Lubricants:Brake lever:

Silicone greaseOther lubrication points:

Low-temperature grease

1. Lubrication point

1



61

ESU12211

Replacing a headlight bulb 1. Open the shroud.2. Disconnect the headlight coupler.3. Remove the bulb holder cover.

4. Unhook the bulb holder by pushing it in,then upward.

5. Remove the bulb.6. Install the new bulb, and then hook the

bulb holder onto the headlight unit.NOTICE: Keep oil and your handsaway from the glass part of the bulb orits life and illumination will be affect-ed. If the glass is oil stained, thor-oughly clean it with a cloth moistenedwith alcohol or lacquer thinner. [ECS00621]

1. Throttle cable end



1. Headlight coupler2. Bulb holder cover

1. Bulb holder

1

2



62

7. Install the bulb holder cover, and thenconnect the headlight coupler.

8. Close the shroud.ESU12262

Adjusting the headlight beam 1. Open the shroud.2. Insert a Phillips screwdriver into the hole

under the shroud to turn the headlightbeam adjusting screw.

3. To lower the headlight beam, turn thePhillips screwdriver in direction (a). Toraise the headlight beam, turn the Phillipsscrewdriver in direction (b).

4. Close the shroud.ESU12290

Fittings and fasteners Check the tightness of the fittings and fasten-ers.Tighten in proper sequence and torque if nec-essary.ESU12303

Battery This model is equipped with a VRLA (ValveRegulated Lead Acid) battery. There is noneed to check the electrolyte or to add distilledwater. However, the battery lead connectionsneed to be checked and, if necessary, tight-ened.

WARNINGEWS00540

Battery electrolyte is poisonous and dan-gerous. It contains sulfuric acid and cancause severe burns. Avoid contact withskin, eyes, or clothing.ANTIDOTE:� EXTERNAL: Flush with water.� INTERNAL: Drink large quantities of wa-

ter or milk. Follow with milk of magne-sia, beaten egg, or vegetable oil. Callphysician immediately.

1. Do not touch the glass part of the bulb.

Bulb type:Halogen bulb

1. Headlight beam adjusting screw

1. Phillips screwdriver



63

� EYES: Flush with water for 15 minutesand get prompt medical attention.

Batteries produce explosive gases. Keepsparks, flame, cigarettes, etc. away. Venti-late when charging or using in an en-closed space. Always shield your eyeswhen working near batteries.KEEP OUT OF THE REACH OF CHILDREN.

Charge or have a Yamaha dealer charge thebattery as soon as possible if it seems to havedischarged. Keep in mind that the batterytends to discharge more quickly if the snow-mobile is equipped with electrical accesso-ries.

WARNINGEWS00610

� Never smoke around the battery while itis being charged. Sparks may ignite thehydrogen gas created by the battery.

� Disconnect the negative lead first, thenthe positive lead from the battery.

� Connect the positive lead first, then thenegative lead to the battery when install-ing the battery.

� Never connect the battery to or discon-nect it from the snowmobile while it isbeing charged. Sparks may ignite thehydrogen gas created by the battery.

� Make sure that the battery terminals aretight.

NOTICEECS00842

� To charge a VRLA (Valve RegulatedLead Acid) battery, a special (constant-voltage) battery charger is required. Ifyou do not have access to a constant-voltage battery charger, have a Yamahadealer charge your battery. Using a con-ventional battery charger will damagethe battery.

� Do not charge the battery quickly.

ESU12312

Replacing a fuse

WARNINGEWS00550

Be sure to use the specified fuse. A wrongfuse could cause electrical system dam-age or A FIRE HAZARD.

NOTICEECS00631

Be sure to turn the main switch to the offposition and disconnect the negative bat-tery lead to prevent accidental short-cir-cuiting.

1. Open the shroud.2. Remove the right side cover.

3. Unhook the air filter case cover fastener.

4. Loosen the joint clamp screws.

1. Right side cover

1. Fastener



64

5. Slide the oil tank breather hose clampaway from the air filter case, and then dis-connect the oil tank breather hose.

6. Slide the crankcase breather hose clamp(crankcase side) up, and then disconnectthe crankcase breather hose from the en-gine.

7. Lift up the air filter case, slide the crank-case breather hose clamp (air filter caseside) down, disconnect the crankcasebreather hose from the air filter case, andthen remove the air filter case.

8. Disconnect the negative battery lead.9. Replace the blown fuse with one of the

proper amperage.

1. Joint clamp screw

1. Oil tank breather hose clamp2. Oil tank breather hose

1. Crankcase breather hose clamp (crankcase side)

2. Crankcase breather hose

1. Crankcase breather hose clamp (air filter case side)

1. Main fuse2. Spare main fuse



65

10. Connect the negative battery lead.11. Install the air filter case by reversing the

removal steps. NOTICE: Be sure to con-nect the breather hoses securelywhen installing the air filter case.[ECS00641]

TIPWhen installing the air filter case, connect thecrankcase breather hose to the air filter casefirst, and then connect it to the engine.

12. Install the right side cover and close theshroud.

TIPIf the fuse immediately blows again, ask aYamaha dealer to inspect the snowmobile.

1. “HEAD” (headlight) fuse2. “SIG” (signal) fuse3. “DC TERM” (auxiliary DC jack) fuse4. “C/W” (carburetor warmer) fuse5. “IGN” (ignition) fuse6. Spare fuse

Specified fuses:Main fuse:

30.0 ASpare main fuse:

30.0 A“HEAD” (headlight) fuse:

20.0 A“SIG” (signal) fuse:

10.0 A“DC TERM” (auxiliary DC jack) fuse:

3.0 A“C/W” (carburetor warmer) fuse:

20.0 A“IGN” (ignition) fuse:

15.0 ASpare fuses:

20.0 A, 15.0 A, 10.0 A, 3.0 A


Troubleshooting

66

ESU12374

Engine turns over but does not start1. Fuel system

� No fuel supplied to combustion cham-ber• No fuel in tank:

Supply fuel.↓

• Clogged fuel line:Clean fuel line.↓

• Clogged carburetor:Clean carburetor.

� Fuel supplied to combustion chamber• Flooded engine (too much choke):

Crank engine with throttle open orwipe the spark plugs dry.

2. Electrical system� Poor spark or no spark

• Spark plugs are dirty with carbon orare wet:Remove carbon or wipe the sparkplugs dry. Replace if necessary.↓

• Faulty ignition system:Ask a Yamaha dealer to inspect.↓

• T.O.R.S. malfunction:Disconnect the throttle switch con-nectors and connect the wire har-ness connectors together to bypassthe T.O.R.S. WARNING! Before by-passing the T.O.R.S., make surethat the throttle returns properlyto the fully closed position. TheT.O.R.S. is an important safety de-vice; in the case of a malfunction,take the snowmobile to a Yamahadealer immediately for repair.[EWS00561]

3. Compression� Insufficient

• Loose cylinder head nuts:Tighten nuts properly.↓

• Worn or damaged gasket:Replace gasket.↓

• Worn or damaged piston and cylin-der:Ask a Yamaha dealer to inspect.

Discharged batteryIf the battery is discharged, the engine can bestarted using a fully-charged 12-volt batteryand jumper cables. Two connecting leadshave been provided for jump-starting thesnowmobile. Due to the rubber engine mount-ing, the snowmobile frame is not a suitablegrounding point for jump-starting the engine.

WARNINGEWS00570

� Connect the jumper cables only to theconnecting lead terminals. Do not con-nect them to the frame or any wire orother lead.

� When connecting the jumper cables, donot contact the jumper cables or con-necting lead terminals to each other orto the frame or any metal part of thesnowmobile. This can cause electricalsystem damage or A FIRE HAZARD.


Troubleshooting

67

� Be sure to pull the lead covers back overthe terminals completely. If the termi-nals are exposed, they could come intocontact with the frame or a metal part ofthe snowmobile and this can cause elec-trical system damage or A FIRE HAZ-ARD.

NOTICEECS00650

Use the connecting leads to jump-start thesnowmobile only. Do not use the connect-ing leads for any other purpose.

To start the engine using the booster battery1. Apply the parking brake and turn the

main switch to the off position.2. Open the shroud.3. Remove the red (+) connecting lead from

the lead holder and move it away fromthe black (–) connecting lead. NOTICE:Be sure to connect the red (+) jumpercable to the red (+) connecting leadand the black (–) jumper cable to theblack (–) connecting lead. Do not re-verse the connections. [ECS00661]

4. Pull the red (+) connecting lead cover toexpose the terminal through the slit in thecover, and then connect the red (+) jump-er cable to the red (+) connecting lead.

5. Connect the other end of the red (+)jumper cable to the positive (+) terminalof the booster battery.

6. Connect the black (–) jumper cable to thenegative (–) terminal of the booster bat-tery.


Troubleshooting

68

7. Pull the black (–) connecting lead coverto expose the terminal through the slit inthe cover, and then connect the black (–)jumper cable to the black (–) connectinglead.

8. Start the engine.9. Disconnect the black (–) jumper cable

from the black (–) connecting lead, andthen pull the cover completely over thelead terminal.

10. Disconnect the black (–) jumper cablefrom the negative (–) terminal of the bat-tery used to jump start the engine.

11. Disconnect the red (+) jumper cable fromthe positive (+) terminal of the batteryused to jump start the engine.

12. Disconnect the red (+) jumper cable fromthe red (+) connecting lead, and then pullthe cover completely over the lead termi-nal.

13. Install the red (+) connecting lead into thelead holder.

14. Close the shroud.

TIPMake sure that both the red (+) connectinglead and the black (–) connecting lead areseated securely in the lead holders.

Electric starter does not operate or operates slowly� Engine stop switch is pushed in: Pull it out.� Faulty wire connections: Check connec-

tions or ask a Yamaha dealer to inspect.� Discharged battery: Charge battery or see

“Discharged battery” above.� Seized engine: Seizure is caused by poor

lubrication, inadequate fuel, or an air leak.Ask a Yamaha dealer to inspect.

� “Hydrostatic lock” occurs when fuel hasfilled the cylinders when the vehicle hasbeen transported: Remove the spark plugsand turn the engine over several times withthe ignition off to expel excess fuel. Ask aYamaha dealer to inspect.

Engine power is low� Low coolant temperature indicator light is

flashing: Warm the engine up.� Faulty spark plugs: Clean or replace the

spark plugs.� Incorrect carburetor jetting for altitude or

temperature: Ask a Yamaha dealer to in-spect.

� Improper fuel flow: See “Engine turns overbut does not start–Fuel system” above.

� Incorrect V-belt clutch settings for altitudeor conditions: Ask a Yamaha dealer to in-spect.

Engine constantly backfires or mis-fires� Faulty spark plugs: Replace the spark

plugs.


Troubleshooting

69

� Clogged fuel system: See “Engine turnsover but does not start–Fuel system”above.

� Malfunctioning T.O.R.S.: See “Engine turnsover but does not start–Electrical system”above.

Engine overheats� Insufficient coolant: Add coolant.� Air in cooling system: Bleed the cooling sys-

tem or ask a Yamaha dealer to inspect.� Leaking coolant: Ask a Yamaha dealer to

inspect.Snowmobile does not move� Malfunctioning V-belt clutch: Ask a Yamaha

dealer to inspect.� Drive track does not move: Foreign object is

caught in the drive track, or slide runnershave melted to the slide metal due to lack oflubrication.

� Tight, loose, or broken drive chain: Ask aYamaha dealer to inspect.

V-belt twists� Improper V-belt: Replace with the correct V-

belt.� Incorrect V-belt clutch offset: Ask a Yamaha

dealer to inspect.� Loose or broken engine mount(s): Ask a

Yamaha dealer to inspect.V-belt slips or becomes extremely hot� Oily or dirty V-belt or primary and second-

ary sheave assembly surfaces: Clean.� Problem with the driveline: See “V-belt

twists” above.Engine does not upshift or downshift properly or engages harshly� Worn or damaged V-belt: Replace the V-

belt or ask a Yamaha dealer to inspect.� Incorrect V-belt clutch settings for altitude

or conditions: Ask a Yamaha dealer to in-spect.

� Worn or sticking primary sheave assembly:Ask a Yamaha dealer to inspect.

� Worn or sticking secondary sheave assem-bly: Ask a Yamaha dealer to inspect.

Noise or excessive vibration in drive chain and sprockets� Broken V-belt clutch components: Ask a

Yamaha dealer to inspect.� Worn or damaged bearings: Ask a Yamaha

dealer to inspect.� Worn or damaged V-belt with flat spots: Re-

place.� Worn or damaged idler wheels or shafts:

Ask a Yamaha dealer to inspect.� Worn or damaged drive track: Ask a

Yamaha dealer to inspect.


Storage

70

ESU12413

Long-term storage requires some preventiveprocedures to guard against deterioration.CleaningThoroughly clean the snowmobile, inside andout, to remove the corrosive salts and acidsthat can accumulate. Use Yamaha Mud,Grease, and Engine Cleaner, or an equivalentproduct, to loosen mud, grease, and grime.Wash with mild soap, then rinse and dry com-pletely.

NOTICEECS00870

� Improper cleaning can damage plasticparts such as shroud, covers, wind-shields, headlight lenses, meter lenses,etc. Use only a soft, clean cloth orsponge with mild detergent and water toclean plastic.

� Do not use any harsh chemical productson plastic parts. Be sure to avoid usingcloths or sponges which have been incontact with strong or abrasive cleaningproducts, solvent or thinner, fuel (gaso-line), rust removers or inhibitors, brakefluid, antifreeze or electrolyte.

� Do not use high-pressure washers orsteam-jet cleaners since they cause wa-ter seepage and deterioration in the fol-lowing areas: seals (of the slide railsuspension, front suspension andbrakes), electric components (couplers,connectors, instruments, switches andlights), breather hoses and vents.

� For snowmobiles equipped with a wind-shield: Do not use strong cleaners orhard sponges as they will cause dullingor scratching. Some cleaning com-pounds for plastic may leave scratcheson the windshield. Test the product on asmall hidden part of the windshield tomake sure that it does not leave any

marks. If the windshield is scratched,use a quality plastic polishing com-pound after washing.

LubricationLubricate moving parts, suspension linkage,and pivot points. Use the grease or lubricantspecified in the MAINTENANCE section, orYamaha Lube-Zall general-purpose lubricant.Proper lubrication fights corrosion while it re-duces friction.Fuel systemAdd Yamaha Fuel Stabilizer and Conditioner,or an equivalent stabilizer, to the fuel tank tohelp prevent fuel oxidation and gum and var-nish deposits, and to inhibit corrosion in thefuel system and carburetor. In areas whereoxygenated fuel (gasohol) is used, completelydrain the fuel system. Consult a Yamahadealer if further information is needed.EngineProper storage of the engine is essential toprevent costly rust and corrosion damage tointernal engine components. This is more im-portant in areas where oxygenated fuel (gas-ohol) is used, because the alcohol content inthe fuel increases the chance for water to en-ter the engine. Use Yamaha Stor-Rite EngineFogging Oil, or an equivalent fogging oil, toprotect both the combustion chamber andcrankshaft from corrosion. An alternate meth-od is to remove the air filter case and squirt oilinto the carburetor throats while the engine isrunning. NOTICE: Do not simply start theengine when in storage, starting the en-gine occasionally during the storage peri-od can cause more harm than good.Moisture and acids form during combus-tion which can actually increase thechance for corrosion damage during thestorage period. [ECS00681]


Storage

71

Surface protectionApply a coat of wax to painted surfaces. Applysuitable protectants to the exterior of the en-gine, drive track, and to other metal, plastic,and rubber parts.BatteryRemove the battery from the snowmobile.Store it in a cool, dry place that is above 0 °C(32 °F), but less than 30 °C (90 °F). Check thecondition of the battery once a month, andcharge it as necessary. NOTICE: Alwayskeep the battery charged. Storing a dis-charged battery can cause permanent bat-tery damage. [ECS00691]

Drive trackLoosen the drive track and block up the chas-sis so that the track is suspended above theground.V-beltRemove the V-belt and store separately.StorageStore the snowmobile in a dry, well-ventilatedplace out of direct sunlight. Put a fabric coverover the snowmobile, preferably one that isdesigned for it. Do not use a plastic or vinylcover—condensation could be trapped un-derneath which could increase the chances ofrusting.Returning to service after storageWhen returning your snowmobile to service,install the V-belt and battery and adjust thedrive track.Remove the spark plugs and clean or replacethem if necessary. Perform all other pre-oper-ation and seasonal maintenance checks list-ed in the periodic maintenance chart.

TIPBefore installing the battery, have a Yamahadealer inspect and fully charge it.

For peak performance, it is recommendedthat you have your snowmobile checked andtuned by a Yamaha dealer. The dealer hasthe experience and training to help you getthe maximum performance and use out ofyour Yamaha snowmobile.


Specifications

72

ESU12466

Dimensions:Overall length:

3135 mm (123.4 in)Overall width:

1225 mm (48.2 in)Overall height:

1330 mm (52.4 in)Dry weight:

293.0 kg (646 lb)Ski stance:

1086 mm (42.8 in)Engine:

Type:Liquid cooled 4-stroke, 12 valves

Cylinder arrangement:Backward-inclined parallel 3-cylinder

Displacement:973.0 cm³

Bore × stroke:79.0 × 66.2 mm (3.11 × 2.61 in)

Idling speed:1300–1500 r/min

Engine oil:Recommended grade:

API service SG type or higher, JASO standard MA

Type:YAMALUBE 4 0W-30, SAE 0W-30

Carburetor:Manufacturer:

KEIHINModel × quantity:

CVK40 × 3Fuel:

Type:REGULAR UNLEADED GASOLINE ONLY

Minimum pump octane (R+M)/2:86

Starting system:Electric starter

Chassis:Drive track:

Material:Molded rubber, fiberglass-rod reinforced

Type:Internal drive type

Width:381 mm (15.0 in)

Deflection:30.0–35.0 mm (1.18–1.38 in)

Length on ground:985 mm (38.8 in)

Rear suspension:Type:

Slide rail suspensionTrack sprocket wheel:

Material:Polyethylene

Number of teeth:9

Transmission:Clutch type:

Automatic centrifugal engagementOverall reduction ratio:

6.74–1.77 :1Sheave distance:

267.0–270.0 mm (10.51–10.63 in)Sheave offset:

13.5–16.5 mm (0.53–0.65 in)Engagement speed (Subject to change according to elevation settings.):

3000–3400 r/minShift speed [Subject to change according to elevation settings. Usually achieved after approximately 800 m (0.5 mi) traveled.]:

8250–8750 r/minDrive chain type:

Silent chain enclosed in oil bathDrive chain housing oil:

Type:SAE 75W or 80W API GL-3 Gear oil

Capacity:0.25 L (0.26 US qt, 0.22 Imp.qt)

Reverse system:Yes

Primary reduction ratio:3.80–1.00 :1

Secondary reduction ratio:39/22 (1.77)

Secondary reduction ratio [R]:2.27

Fuel tank capacity:39.3 L (10.38 US gal, 8.65 Imp.gal)

Engine oil quantity:With oil filter cartridge replacement:

3.0 L (3.17 US qt, 2.64 Imp.qt)


Specifications

73

Without oil filter cartridge replacement:2.8 L (2.96 US qt, 2.46 Imp.qt)

Total amount:3.7 L (3.91 US qt, 3.26 Imp.qt)

Brake:Type:

Hydraulic disc type (ventilated disc)Operation:

Handle lever, left-hand operatedThrottle:

Operation:Handle lever, right-hand operated

Electrical system:Ignition system:

T.C.I.Spark plug:

Manufacturer:NGK

Model:CR8E

Gap:0.7–0.8 mm (0.028–0.031 in)

Battery:Model:

YTX20L-BSVoltage, capacity:

12 V, 18.0 AhTen-hour rate amperage:

1.8 ABulb voltage, wattage × quantity:

Headlight:12 V, 60/55 W × 2

Headlight bulb type:Halogen bulb

Tail/brake light:12 V, 5/21 W × 2

Meter lighting:14 V, 50 mA × 6

High beam indicator light:14 V, 80 mA × 1

Warning light:14 V, 80 mA × 1

Low coolant temperature indicator light:14 V, 80 mA × 1


Consumer information

74

ESU12480

Identification number records Record the frame serial number, engine serialnumber (Primary ID), and key identificationnumber in the spaces provided for assistancewhen ordering spare parts from a Yamahadealer.Also, record and keep the ID numbers in aseparate place in case the snowmobile is sto-len.Frame serial numberThe frame serial number is the seventeen-digit number stamped on the frame of thesnowmobile.

Engine serial number (Primary ID)The engine serial number is stamped in thelocation as shown.

Key identification numberThe key identification number is stamped inthe location as shown.

1. Frame serial number

1. Engine serial number

1. Key identification number



75

ESU12500

YAMAHA MOTOR CORPORATION, U.S.A. SNOWMOBILE LIMIT-ED WARRANTYYamaha Motor Corporation, U.S.A. hereby warrants thatnew Yamaha snowmobiles purchased from an autho-rized Yamaha snowmobile dealer in the continental UnitedStates will be free from defects in material and workman-ship for the period of time stated herein, subject to certainstated limitations.

WARRANTY PERIOD:1. All Yamaha snowmobiles shall be warranted for a

term of one (1) year from the date of purchase, plusa special early-season extension (if applicable).

2. All Yamaha snowmobile clutch components are war-ranted against abnormal wear for one (1) year fromthe date of purchase, plus a special early-seasonextension (if applicable).

DURING THE PERIOD OF WARRANTY any au-thorized Yamaha snowmobile dealer will, free of charge,repair or replace, at Yamaha’s option, any part adjudgeddefective by Yamaha due to faulty workmanship ormaterial from the factory. Parts used in warranty repairswill be warranted for the balance of the snowmobile’swarranty period. All parts replaced under warranty be-come the property of Yamaha Motor Corporation, U.S.A.

GENERAL EXCLUSIONS from this warranty shallinclude any failures to the machine caused by:1. Competition, racing, or non-Yamaha authorized rental

use.2. Operation on surfaces other than snow or ice.3. Installation of parts or accessories that are not qual-

itatively equivalent to genuine Yamaha parts.4. Abnormal strain, neglect, or abuse.5. Lack of proper maintenance.6. Accident or collision damage.7. Modification to original parts.

SPECIFIC EXCLUSIONS from this warranty shallinclude parts replaced due to normal wear or routinemaintenance including oil, spark plugs, clutch drive belts,slide runners, and track.

THE CUSTOMER’S RESPONSIBILITY under thiswarranty shall be to:1. Operate and maintain the snowmobile as specified in

the appropriate Owner’s Manual.

2. Give notice to an authorized Yamaha snowmobiledealer of any and all apparent defects within ten (10)days after discovery, and make the machine avail-able at that time for inspection and repairs at suchdealer’s place of business. You may locate yournearest authorized Yamaha dealer through yourlocal telephone directory.

WARRANTY TRANSFER: To transfer any remain-ing warranty from the original purchaser to any subse-quent purchaser, it is imperative that the machine beinspected and registered for warranty by an authorizedYamaha snowmobile dealer. In order for this warrantyto remain in effect, this inspection and registration musttake place within ten (10) days after ownership transfer.An inspection and registration fee will be charged for thisservice.

EMISSION CONTROL SYSTEM WARRANTYYamaha Motor Corporation, USA also warrants to theultimate purchaser and each subsequent purchaser ofeach 2006 and later model Yamaha snowmobile cov-ered by this warranty that the vehicle is designed, built,and equipped so as to conform at the time of sale withall U.S. emissions standards applicable at the time ofmanufacture and that it is free from defects in materialsand workmanship which would cause it not to meetthese standards within the period listed immediatelybelow. Failures other than those resulting from defectsin material or workmanship which arise solely as aresult of owner abuse and/or lack of proper mainte-nance are not covered by this warranty.

All ModelsThirty (30) months from the original purchase date



76

YAMAHA MOTOR CORPORATION, U.S.A.MAKES NO OTHER WARRANTY OF ANY KIND,EXPRESSED OR IMPLIED. ALL IMPLIED WAR-RANTIES OF MERCHANTABILITY AND FIT-NESS FOR A PARTICULAR PURPOSE WHICHEXCEED THE OBLIGATIONS AND TIME LIM-ITS STATED IN THIS WARRANTY ARE HEREBYDISCLAIMED BY YAMAHA MOTOR CORPO-RATION, U.S.A. AND EXCLUDED FROM THISWARRANTY.

SOME STATES DO NOT ALLOW LIMITATIONSON HOW LONG AN IMPLIED WARRANTYLASTS, SO THE ABOVE LIMITATION MAYNOT APPLY TO YOU. ALSO EXCLUDED FROMTHIS WARRANTY ARE ANY INCIDENTAL ORCONSEQUENTIAL DAMAGES INCLUDINGLOSS OF USE. SOME STATES DO NOT AL-LOW THE EXCLUSION OR LIMITATION OFINCIDENTAL OR CONSEQUENTIAL DAM-AGES, SO THE ABOVE EXCLUSION MAY NOTAPPLY TO YOU.

THIS WARRANTY GIVES YOU SPECIFIC LE-GAL RIGHTS, AND YOU MAY ALSO HAVEOTHER RIGHTS WHICH VARY FROM STATETO STATE.

SPECIAL EARLY-SEASON WARRANTY EX-TENSIONA special warranty extension is available for all newYamaha snowmobiles purchased between June 1 andDecember 1.

All new Yamaha snowmobiles purchased between June1 and December 1 will have the warranty extended toNovember 30 of the following year.

YAMAHA MOTOR CORPORATION, U.S.A.Post Office Box 6555

Cypress, California 90630

WARRANTY QUESTIONS ANDANSWERS

Q. What costs are my responsibility during the warrantyperiod?

A. The customer’s responsibility includes all costs ofnormal maintenance services, non-warranty repairs,accident and collision damages, as well as oil, sparkplugs, clutch drive belts, and slide runners.

Q. What are some examples of “abnormal” strain, ne-glect, or abuse?

A. These terms are general and overlap each other inareas. Specific examples include: Running the ma-chine out of oil, hitting an object submerged undersnow, operation on surfaces other than snow or ice,operating the machine with a broken or damagedpart which causes another part to fail, and so on. Ifyou have any specific questions on operation ormaintenance, please contact your dealer for advice.

Q. May I perform any or all of the recommended main-tenance shown in the Owner’s Manual instead ofhaving the dealer do them?

A. Yes, if you are a qualified snowmobile mechanic andfollow the procedures specified in the Owner’s andService Manual. We do recommend, however, thatitems requiring special tools or equipment be done bya Yamaha snowmobile dealer.

Q. Under what conditions is the clutch not covered bywarranty?

A. Clutches as well as clutch components wear withuse. Normal wear is not covered under warranty suchservice is the customer’s responsibility. Abnormalwear is, however, covered for one (1) year from thedate of purchase. Your Yamaha snowmobile dealerpossesses criteria as to what constitutes abnormalwear.

Q. Will the warranty be void or canceled if I do notoperate or maintain my new Yamaha exactly asspecified in the Owner’s Manual?

A. No. The warranty on a new Yamaha cannot be“voided” or “canceled.” However, if a particular failureis caused by operation or maintenance other than asshown in the Owner’s Manual, that failure may not becovered under warranty.



77

Q. What responsibility does my dealer have under thiswarranty?

A. Each Yamaha snowmobile dealer is expected to:1. Completely set up every new machine before sale.2. Explain the operation, maintenance, and warranty

requirements to your satisfaction at the time of sale,and upon your request at any later date.

3. In addition, each Yamaha snowmobile dealer is heldresponsible for his setup, service and warranty repairwork.

Q. Whom should I contact if I have further questionsabout this warranty?

A. Your Yamaha snowmobile dealer has the informa-tion and experience necessary to answer almost anyquestions about this warranty. If the dealer is not ableto do so, he is expected to contact Yamaha MotorCorporation, U.S.A., for clarification or assistance.

CUSTOMER SERVICE

If your machine requires warranty service, you must takeit to any authorized Yamaha snowmobile dealer withinthe continental United States. Be sure to bring yourwarranty identification card or other valid proof of theoriginal date of purchase. If a question or problem arisesregarding warranty, first contact the owner of the dealer-ship. Since all warranty matters are handled at the dealerlevel, this person is in the best position to help you. If youare still not satisfied and require additional assistance,please write:

YAMAHA MOTOR CORPORATION, U.S.A.CUSTOMER RELATIONS

DEPARTMENTP.O. Box 6555

Cypress, California 90630

When contacting Yamaha Motor Corpora-tion, U.S.A. be sure to include the model,serial number, names, dates, and receipts.

CHANGE OF ADDRESS

The federal government requires each manufacturer of amotor vehicle to maintain a complete, up-to-date list of allfirst purchasers against the possibility of a safety-relateddefect and recall. This list is compiled from the purchaseregistrations sent to Yamaha Motor Corporation, U.S.A.by the selling dealer at the time of your purchase.

If you should move after you have purchased your newsnowmobile, please advise us of your new address bysending a postcard listing your snowmobile model name,engine serial number, dealer number (or dealer’s name)as it is shown on your warranty registration identification,your name and new mailing address. Mail to:

YAMAHA MOTOR CORPORATION, U.S.A.WARRANTY DEPARTMENT

P.O. Box 6555Cypress, California 90630

This will ensure that Yamaha Motor Corporation, U.S.A.has an up-to-date registration record in accordance withfederal law.



78

ESU12510

YAMAHA EXTENDED SERVICE (Y.E.S.)


Index

2-up adjusting blocks, adjusting ............... 23AAir filter, checking..................................... 42Auxiliary DC jack ...................................... 14BBackrest ................................................... 17Battery...................................................... 62Brake and parking brake .......................... 53Brake lever ............................................... 15Break-in.................................................... 29CCarburetors .............................................. 43Center shock absorber and rear torsion

springs, adjusting spring preload .......... 22Control rods, adjusting ............................. 24Coolant temperature warning indicator .... 13Cooling system......................................... 47DDrive chain housing.................................. 52Drive guard............................................... 16Drive track and slide runners ................... 57Drive track life, maximizing ...................... 33Driving ...................................................... 33EEngine idling speed, adjusting ................. 41Engine oil and oil filter cartridge ............... 44Engine overheating prevention system ...... 8Engine stop switch ................................... 13FFittings and fasteners............................... 62Footrests .................................................. 17Fuel .......................................................... 20Fuel level warning indicator...................... 12Fuel meter and grip/thumb warmer level

indicator ................................................ 10Fuse, replacing......................................... 63GGeneral maintenance and lubrication

chart...................................................... 38Grip/thumb warmer adjustment switch..... 14HHeadlight beam, adjusting........................ 62Headlight beam switch ............................. 13Headlight bulb, replacing.......................... 61High beam indicator light.......................... 10

High-altitude settings................................ 43IIdentification numbers .............................. 74LLocation of the important labels ................. 1Low coolant temperature indicator light ... 10Lubrication................................................ 60MMain switch ................................................ 7OOil level warning indicator ........................ 12PParking brake lever .................................. 15Part locations ............................................. 5Passenger grip warmer switch ................. 17Periodic maintenance chart for the

emission control system ....................... 36Pre-operation check list............................ 26RRear storage area and rear carrier........... 18Riding your snowmobile ........................... 29SSafety information ...................................... 3Self-diagnosis device ............................... 13Shift lever ................................................. 15Shock absorbers, front, adjusting spring

preload.................................................. 21Shroud latches ......................................... 16Skis and ski runners ................................. 55Spark plugs, checking .............................. 40Specifications ........................................... 72Speedometer unit ....................................... 9Starter (choke) lever................................... 7Starting the engine ................................... 28Steering system ....................................... 56Stopping the engine ................................. 34Storage..................................................... 70Storage areas........................................... 18Storage compartment............................... 18Suspension .............................................. 21TThrottle cable free play, adjusting ............ 41Throttle lever .............................................. 7Throttle override system (T.O.R.S.) ........... 8Throttle override system (T.O.R.S.),

checking................................................ 42


Index

Tool kit...................................................... 40Transporting ............................................. 35Troubleshooting ....................................... 66VValve clearance........................................ 44V-belt........................................................ 49V-belt holders ........................................... 17


YAMAHA MOTOR CO., LTD.

PRINTED ON RECYCLED PAPERPRINTED IN JAPAN2008.04-0.3×1 CR

ESU12520

RST90Y RS Venture Owners Manual - Yamaha Motorsports USA...guished in this manual by the following...

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Transcript of RST90Y RS Venture Owners Manual - Yamaha Motorsports USA...guished in this manual by the following...