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OWNER’S MANUAL Read this manual carefully before operating this vehicle. RS90GTZ RS90LTGTZ LIT-12628-02-91 8JA-28199-10...
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ESU10041 Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.
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1st Edition, April 2009 All rights reserved. It represents the high degree of craftsmanship Any reprinting or unauthorized use and reliability that have made Yamaha a lead- without the written permission of er in these fields. Yamaha Motor Corporation, U.S.A.
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Important manual information ESU10151 Particularly important information is distin- guished in this manual by the following nota- tions. This is the safety alert symbol. It is used to alert you to potential personal injury haz- ards. Obey all safety messages that follow this symbol to avoid possible injury or death.
Contents Operation ......... 30 Location of the important labels ..1 Starting the engine ....... 30 Break-in ........31 Safety information ......5 Riding your snowmobile ....31 Maximizing drive track life .... 35 Description ........7 Driving .......... 36 Stopping the engine .....
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Contents Troubleshooting ......74 Storage ..........78 Specifications ......... 80 Consumer information....82 Identification number records ..82 Vehicle Emission Control Information label ......83 YAMAHA MOTOR CORPORATION, U.S.A. SNOWMOBILE LIMITED WARRANTY....... 84 YAMAHA EXTENDED SERVICE (Y.E.S.)........87...
Read and understand all of the labels on your vehicle. They contain important information for safe and proper operation of your vehicle. Never remove any labels from your vehicle. If a label becomes difficult to read or comes off, a replacement label is available from your Yamaha deal-...
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Location of the important labels NOTICE ATTENTION 8ET-2815K-00 8ET-2815K-10 TUNE-UP SPECIFICATIONS SPECIFICATIONS DE LA MISE AU POINT ENGINE MOTEUR 1.SPARK PLUG 1.TYPE DE BOUGIE CR8E(NGK) CR8E(NGK) 2.SPARK PLUG GAP 2.ECARTEMENT DES ÉLECTRODES 0.7 ~ 0.8 mm (0.028 ~ 0.031 in) 0.7 ~ 0.8 mm 3.IDLE SPEED 3.RÉGIME DE RALENTI...
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Location of the important labels 8FR-77763-E0 8 RS90LTGT This spark ignition system meets all requirements of the Canadian Interference Causing Equipment Regulations. Ce système d’allumage par étincelle de véhicule respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. 3JK-82377-10 88C-77769-00...
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Location of the important labels 8FA-E0 JUMPER CABLE CONNECTION LEADS • For connecting procedures, refer to Owner’s Manual. FILS DE BRANCHEMENT DES CÂBLES DE DÉMARRAGE • Effectuer le branchement des câbles de démarrage conformément aux instructions du Manuel du propriétaire. 8FA-2389C-E0...
Become familiar with all of the operating This snowmobile is designed to carry the controls and their function. Consult a OPERATOR ONLY. Passengers are pro- Yamaha dealer about any control or func- hibited. Carrying a passenger can cause tion you do not understand. loss of control.
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Many surfaces such as ice and hardpacked cessories or offer other modifications for snow require much longer stopping distanc- Yamaha vehicles. Yamaha is not in a position es. Be alert, plan ahead and begin deceler- to test the products that these aftermarket ating early.
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Description 1 2 3 18 20 22 24 12 13 14 16 17 19 21 23 25 E LO 1. Brake lever 20. Thumb warmer indicator “ ” 2. Parking brake lever 21. Oil level warning indicator “ ” 3. Grip/thumb warmer adjustment switch 22.
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Description 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.
Control functions ESU10292 Main switch The main switch controls the ignition and lighting systems. The various positions are described below. 1. Throttle lever ESU13241 Throttle override system (T.O.R.S.) EWS00041 1. Off WARNING 2. On If the T.O.R.S. is activated, make sure that 3.
“84” will be displayed in a grip/thumb warmer level indicator (which the meter display. If this occurs, have a shows the grip warmer level or the thumb Yamaha dealer check the system as soon as warmer level) possible. a display brightness control function...
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Control functions Odometer and tripmeter modes counting the distance traveled from that point. When this occurs, change the engine oil as E LO soon as possible. (See page 50 for the oil change procedure.) E LO 1. Odometer/tripmeter/fuel reserve tripmeter Push the “SELECT”...
Control functions been reached), the tripmeter must be reset af- ter the oil change for the next periodic oil The clock must be set again when the battery change to be indicated at the correct time. is disconnected. In that case, reset the oil change tripmeter as follows.
Control functions ESU10433 Fuel meter and grip/thumb warmer level indicator The fuel meter and grip/thumb warmer level indicator have eight segments which show the amount of fuel remaining in the fuel tank, the grip warmer level, or the thumb warmer level.
17 for detailed information. of the above problems. If this occurs, have a Yamaha dealer inspect the snowmobile as soon as possible. 1. Grip/thumb warmer adjustment switch 1.
Yamaha dealer inspect If the oil level warning indicator and the warn- the snowmobile as soon as possible. ing light still remain on, have a Yamaha dealer NOTICE: Do not continue to operate the check the snowmobile.
Control functions ESU10692 Maximum rated capacity: Auxiliary DC jack DC 12 V, 2.5 A (30 W) The auxiliary DC jack is located in the front panel and can be used for accessories. ESU13261 Helmet shield heater jack The helmet shield heater jack is located on The auxiliary DC jack cannot be used if the the left side of the handlebar.
Control functions Tighten the locknut securely after adjust- ESU13520 Brake lever ing the brake lever. The snowmobile is stopped by braking the en- ESU10581 Parking brake lever tire drive system. Squeeze the brake lever towards the handle- When parking the snowmobile or starting the bar grip to stop the snowmobile.
Control functions ESU10722 Shroud and covers Securely fasten the shroud and covers before operating the snowmobile. (See page 42 for removal and installation procedures.) 1. Shift lever 1. Shroud 2. Right side cover 1. Pull out. 2. Slide to “FWD” (forward). 3.
Control functions Lift up the rear of the drive guard as ESU13312 Drive guard shown, and then pull the guard rearward EWS00401 to remove it. WARNING Coming in contact with the rotating V- belt or clutch parts can cause severe in- jury or death.
Control functions 1. Drive guard 1. Fastener 2. Drive guard locking pin 2. Storage compartment ESU10760 ESU10604 V-belt holders Fuel Keep a spare V-belt for emergency use by EWS00071 WARNING placing it into the V-belt holders provided. Gasoline and gasoline vapors are ex- tremely flammable.
ONLY Fuel tank capacity: 35.6 L (9.41 US gal, 7.83 Imp.gal) Your Yamaha engine has been designed to use regular unleaded gasoline with a pump octane number [(R+M)/2] of 86 or higher, or a research octane number of 91 or higher.
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A, shown in the illustra- out shock absorber yourself. Take the tion. The longer distance A is, the higher the shock absorber to a Yamaha dealer for spring preload; the shorter distance A is, the any service. lower the spring preload.
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Control functions To increase the rebound damping force, turn ESU10926 Adjusting the damping forces of the the adjusting knob in direction (a). To de- front shock absorbers crease the rebound damping force, turn the EWS00740 adjusting knob in direction (b). WARNING The damping forces of the left and right shock absorbers must be adjusted to the...
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The spring preload can be further adjusted by Minimum (soft): changing the position of the spring seat. 22 click(s) in direction (b)* Have a Yamaha dealer make this adjustment Standard: as it requires special tools. With the adjusting dial fully turned in...
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Control functions to the control rod, and that it is tightly Tighten the locknut while holding the ad- fitted on the locknut and against the juster in place. control rod adjuster. [ECS00323] Locknut tightening torque: 35 Nm (3.5 m·kgf, 25 ft·lbf) 1.
• Make sure that drive guard is tightened securely. Drive guard • Check the drive guard mounts for damage. • Check operation. • If soft or spongy, have Yamaha dealer bleed hy- draulic system. • Check brake pads for wear. Brake •...
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• Check the deflection. • Adjust if necessary. Drive track • Check for wear and damage. • If necessary, have a Yamaha dealer replace track. • Check for wear and damage. Slide runners • If necessary, have Yamaha dealer replace slide runners.
2. Off position the engine does not start or if it stops again, Turn the main switch to the start position ask a Yamaha dealer to inspect the snow- and release it when the engine starts. mobile. NOTICE: Release the switch immedi- an engine overheating prevention system, ately after the engine starts.
After 800 km (500 mi) of operation, the engine oil must be changed and the oil filter cartridge replaced. If any engine trouble should occur dur- ing the engine break-in period, immedi- ately have a Yamaha dealer check the snowmobile. ESU11333 1. Start Riding your snowmobile...
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Operation Pay particular attention to the safety informa- Braking tion on page 5. EWS00220 WARNING Please read all warning and notice labels on Many surfaces such as ice and hard- your snowmobile. Also, read the Snowmobil- packed snow require much longer stop- er’s Safety Handbook that is supplied with ping distances.
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Operation Improper riding techniques such as abrupt throttle changes, excessive braking, incorrect body movements, or too much speed for the sharpness 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. If necessary, gradually let off on the throttle or steer to the outside of the turn.
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Operation Snow and ice are slippery, so be prepared for the 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 there are no obstacles in your path. As you regain proper balance, gradually steer again in the direction you wish to travel.
Recommendations recommendations. Track tension Yamaha does not recommend track stud- During initial break-in, the new drive track will ding. tend to stretch quickly as the track settles. Be sure to correct the track tension and align-...
Operation ESU11393 Driving EWS00300 WARNING Be sure to read the “SAFETY INFORMA- TION” section on page 5 and the “Riding your snowmobile” section on page 31 carefully before operating the snowmo- bile. 1. Pull out. Make sure that the engine is warmed up 2.
Operation Squeeze the throttle lever slowly to start for your snowmobile is best. This will help out. keep foreign objects out of the cooling Turn the handlebar in the desired direc- vents, and also help protect the snowmo- tion. bile against damage from debris on the Squeeze the brake lever to stop the road.
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 special tools, data and technical skills. INITIAL...
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Periodic maintenance and adjustment INITIAL EVERY Seasonally 1 month ITEM REMARKS PAGE or 800 km 4000 km (500 mi) (2500 mi) (40 hr) (200 hr) • Check and adjust valve clear- Every 40000 km (25000 * Valve clearance ance when engine is cold. •...
Periodic maintenance and adjustment ESU11563 General maintenance and lubrication chart INITIAL EVERY Seasonally 1 month ITEM REMARKS PAGE or 800 km 4000 km (500 mi) (2500 mi) (40 hr) (200 hr) • Change (warm engine before Engine oil draining). Every Engine oil filter car- •...
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Periodic maintenance and adjustment INITIAL EVERY Seasonally 1 month ITEM REMARKS PAGE or 800 km 4000 km (500 mi) (2500 mi) (40 hr) (200 hr) Skis and ski run- • Check for wear and damage. ners • Replace if necessary. •...
If you do not have a torque wrench available during a service operation requiring one, take your snowmobile to a Yamaha dealer to check the torque settings and adjust them if necessary. 1. Shroud stay...
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Periodic maintenance and adjustment Top cover To remove the top cover Remove the shroud and the left side cov- er. (See the above procedures.) Disconnect the auxiliary DC jack coupler. 1. Fastener 2. Left side cover To install a side cover Fit the projection on the rear of the side cover into the hole in the fuel tank cover.
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Periodic maintenance and adjustment 1. Quick fastener screw 1. Top cover 2. Top cover Tighten the quick fastener screws. Lift up the rear of the top cover, discon- Pass the brake hose, throttle cable, park- nect the main switch coupler, and then ing brake cable and wire harness through remove the cover.
Do not at- tempt to diagnose such problems yourself. Instead, take the snowmobile to a Yamaha dealer for inspection and possible repairs. 1. Spark plug gap You should periodically remove and inspect 2.
Periodic maintenance and adjustment ESU12911 Adjusting the throttle cable free play Place the snowmobile on a level surface and apply the parking brake. Remove the shroud, the left and right side covers, and the top cover. (See page 42 for removal procedures.) Remove the headlight unit bolt on each side of the snowmobile.
Periodic maintenance and adjustment Fit the weatherstrip on the headlight unit into the recess in the top of the air filter case cover. Check the T.O.R.S. for proper operation. Start the engine. 1. Weatherstrip Refer to the “Starting the engine” section on 10.
Periodic maintenance and adjustment Place the headlight unit in the original po- sition, making sure to insert the projec- tions on the headlight unit stay into the slots on the bottom of the headlight unit. 1. Air filter case cover fastener Lift up the air filter element frame and check the air filter element.
800 km (500 mi) of the area where you bought it, be sure to con- operation, and every 20000 km (12000 sult a Yamaha dealer. The dealer can tell you mi) of operation thereafter. if there are any changes necessary for the al- titude where you plan to ride.
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Periodic maintenance and adjustment After operating the snowmobile, allow the engine to idle for at least 10 seconds before The engine oil should be between the “H” and turning it off. “L” level marks on the dipstick. Remove the shroud and the right side cover.
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Periodic maintenance and adjustment Remove the oil filler cap, the cylinder head cap, and the engine oil drain bolt to drain the oil from the oil tank. 1. Screw 2. Bolt 3. Right lower cover 1. Cylinder head cap Remove the bottom panel by removing the bolts.
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80.) Make sure that no foreign material enters the engine oil tank. [ECS00462] 1. Oil filter cartridge An oil filter wrench is available at a Yamaha dealer. 12. Apply a thin coat of engine oil to the O- ring of the new oil filter cartridge.
Yamaha dealer check the clockwise to the detent. This procedure al- snowmobile. Continuing to operate lows any residual pressure to escape.
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The cooling system must be bled if the cool- ant reservoir becomes empty, if air can be seen in the cooling system, or if there is a cooling system leak. Consult a Yamaha deal- ECS00500 NOTICE Operating the engine with an improperly bled cooling system can cause overheat- ing and severe engine damage.
Check for any coolant leakage. 1. V-belt wear limit If you find any leaks, consult a Yamaha deal- New V-belt width: 34.5 mm (1.36 in) Install the top cover. V-belt wear limit width: ESU13374 32.5 mm (1.28 in)
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Periodic maintenance and adjustment Have a Yamaha dealer make this adjust- ment. Place the snowmobile on a level surface and apply the parking brake. Remove the shroud and the left side cov- er, and then remove the drive guard. (See pages 21 and 42 for removal proce- dures.)
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Periodic maintenance and adjustment Tighten the V-belt position adjusting Standard V-belt position: bolts. From 1.5 mm (0.06 in) above the edge of the secondary sheave assembly to V-belt position adjusting bolt tightening 0.5 mm (0.02 in) below the edge torque: 10 Nm (1.0 m·kgf, 7.2 ft·lbf) If the V-belt position is incorrect, adjust it by removing or adding a spacer on each...
Periodic maintenance and adjustment maximum level mark. NOTICE: Make sure that no foreign material enters the drive chain housing. [ECS00531] 1. Left lower cover 14. Install the drive guard, and then install the left side cover and the shroud. 1. Maximum level mark ESU12104 Drive chain housing 2.
Do not operate the snowmobile if you find any problems in the brake system. You could lose braking ability, which could lead to an accident. Ask a Yamaha dealer to inspect and repair the brake 1. Notch system.
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If 1. Parking brake pad adjusting bolt locknut the parking brake pads reach the wear 2. Parking brake pad adjusting bolt limit, ask a Yamaha dealer to replace 3. Parking brake cable locknut them. 4. Parking brake cable adjusting bolt 5.
Check the skis and ski runners for wear and damage. Replace if necessary. 1. Lower level Specified brake fluid: DOT 4 Changing the brake fluid EWS00471 WARNING Make sure that the brake fluid and the fol- lowing parts are replaced by a Yamaha dealer.
To align the skis Turn the handlebar so the skis face straight ahead. Check the following for ski alignment: Skis are facing forward. If excessive free play is felt, consult a Yamaha Ski toe-out (distance A – distance B) is dealer. within specification.
Periodic maintenance and adjustment ESU13570 Drive track and slide runners Drive track EWS00480 WARNING A broken track, track fittings or debris thrown by the drive track could be danger- ous to an operator or bystanders. Observe the following precautions: Do not allow anyone to stand behind the snowmobile when the engine is running.
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Periodic maintenance and adjustment Standard drive track deflection: Drive track Shifted to Shifted to left 30.0–35.0 mm (1.18–1.38 in) alignment right Left adjusting Turn out Turn in If the deflection is incorrect, adjust the bolt drive track. Right adjust- Turn in Turn out ing bolt Adjusting the drive track...
Periodic maintenance and adjustment Shifted to left If the slide runners reach the wear limit, they should be replaced. 1. Forward 2. Gap 1. Slide runner 3. Slide runner 2. Wear limit height 4. Drive track 5. Slide metal Slide runner wear limit height: 10.5 mm (0.41 in) Adjust the drive track deflection to speci- fication.
Periodic maintenance and adjustment 1. Lubrication point 1. Lubrication point RS90GT 1. Throttle cable end 1. Lubrication point RS90LTGT 1. Lubrication point 1. Lubrication point ESU12221 Replacing a headlight bulb Remove the top cover. (See page 42 for removal procedures.) Remove the screws, and then remove the headlight access panel.
Periodic maintenance and adjustment 1. Screw 1. Bulb holder Remove the bulb. Install the new bulb, and then hook the bulb holder onto the headlight unit. NOTICE: Keep oil and your hands away from the glass part of the bulb or its life and illumination will be affect- ed.
Always shield your eyes when working near batteries. KEEP OUT OF THE REACH OF CHILDREN. Charge or have a Yamaha dealer charge the battery as soon as possible if it seems to have discharged. Keep in mind that the battery...
Periodic maintenance and adjustment dealer charge your battery. Using a con- ventional battery charger will damage the battery. Do not charge the battery quickly. ESU12952 Replacing a fuse EWS00550 WARNING Be sure to use the specified fuse. A wrong fuse could cause electrical system dam- 1.
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Periodic maintenance and adjustment Unhook the battery band, and then re- move the battery cover. 1. Air filter case fastener 2. Air temperature sensor coupler 1. Battery cover Slide the oil tank breather hose clamp 2. Battery band away from the air filter case, and then dis- connect the oil tank breather hose.
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Periodic maintenance and adjustment Specified fuses: Main fuse: 40.0 A Fuel injection system fuse: 10.0 A Ignition fuse: 15.0 A Radiator fan fuse: 5.0 A Headlight fuse: 20.0 A Signaling system fuse: 1 2 3 4 5 6 7.5 A Auxiliary DC jack fuse: 3.0 A Helmet shield heater jack fuse:...
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Tightening torque: Headlight unit bolt: 3 Nm (0.3 m·kgf, 2.2 ft·lbf) 18. Install the top cover, the left and right side covers, and the shroud. If the fuse immediately blows again, ask a Yamaha dealer to inspect the snowmobile.
Clean fuel line. Compression ↓ Insufficient • Clogged injector: • Loose cylinder head nuts: Ask a Yamaha dealer to inspect. Tighten nuts properly. Fuel supplied to combustion chamber ↓ • Flooded engine: • Worn or damaged gasket: Crank engine or wipe the spark plugs Replace gasket.
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Troubleshooting Be sure to pull the lead covers back over the terminals completely. If the termi- nals are exposed, they could come into contact with the frame or a metal part of the snowmobile and this can cause elec- trical system damage or A FIRE HAZ- ARD.
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Pull the black (–) connecting lead cover Faulty wire connections: Check connec- to expose the terminal through the slit in tions or ask a Yamaha dealer to inspect. the cover, and then connect the black (–) Discharged battery: Charge battery or see jumper cable to the black (–) connecting...
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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.
(gaso- the fuel increases the chance for water to en- line), rust removers or inhibitors, brake ter the engine. Use Yamaha Stor-Rite Engine fluid, antifreeze or electrolyte. Fogging Oil, or an equivalent fogging oil, to...
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Apply a coat of wax to painted surfaces. Apply that you have your snowmobile checked and suitable protectants to the exterior of the en- tuned by a Yamaha dealer. The dealer has gine, drive track, and to other metal, plastic, the experience and training to help you get and rubber parts.
Specifications ESU12468 Type: Internal drive type Width: Dimensions: 381 mm (15.0 in) Overall length: Deflection: RS90GT 2805 mm (110.4 in) 30.0–35.0 mm (1.18–1.38 in) RS90LTGT 3000 mm (118.1 in) Length on ground: Overall width: RS90GT 768 mm (30.2 in) 1225 mm (48.2 in) RS90LTGT 960 mm (37.8 in) Overall height: Rear suspension:...
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Specifications Fuel tank capacity: 35.6 L (9.41 US gal, 7.83 Imp.gal) Engine oil quantity: With oil filter cartridge replacement: 3.3 L (3.49 US qt, 2.90 Imp.qt) Without oil filter cartridge replacement: 3.1 L (3.28 US qt, 2.73 Imp.qt) Total amount: 4.0 L (4.23 US qt, 3.52 Imp.qt) Brake: Type:...
Record the frame serial number, engine serial number (Primary ID), and key identification number in the spaces provided for assistance when ordering spare parts from a Yamaha dealer. Also, record and keep the ID numbers in a separate place in case the snowmobile is sto- len.
Consumer information ESU13460 Vehicle Emission Control Infor- mation label 1. Vehicle Emission Control Information label The Vehicle Emission Control Information la- bel is affixed at the location in the illustration. This label shows specifications related to ex- haust emissions as required by federal law, state law and Environment Canada.
WARRANTY PERIOD: WARRANTY TRANSFER: To transfer any remain- 1. All Yamaha snowmobiles shall be warranted for a ing warranty from the original purchaser to any subse- term of one (1) year from the date of purchase, plus quent purchaser, it is imperative that the machine be a special early-season extension (if applicable).
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Post Office Box 6555 specified in the Owner’s Manual? Cypress, California 90630 A. No. The warranty on a new Yamaha cannot be “voided” or “canceled.” However, if a particular failure is caused by operation or maintenance other than as shown in the Owner’s Manual, that failure may not be...
If the dealer is not able to do so, he is expected to contact Yamaha Motor If you should move after you have purchased your new Corporation, U.S.A., for clarification or assistance.
Consumer information ESU12510 YAMAHA EXTENDED SERVICE (Y.E.S.)
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Index Air filter, checking........48 Main switch ..........10 Auxiliary DC jack ........18 Multi-function meter unit ......11 Battery............69 Oil level warning indicator ......15 Brake and parking brake ......60 Brake lever ..........19 Parking brake lever ........19 Break-in............
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Index Valve clearance........50 V-belt............56 V-belt holders ........... 22 Vehicle Emission Control Information label ............83...
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YAMAHA MOTOR CO., LTD. PRINTED IN JAPAN 2009.05-0.5×1 CR PRINTED ON RECYCLED PAPER...