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Yamaha RS90K Owner's Manual

Other manuals for RS90K: Service Manual

Summary of RS90K

  • Page 1

    Owner’s manual snowmobile rs90k rs90mk rs90rk rsg90k 8es-28199-10 lit-12628-02-38 printed on recycled paper printed in japan 2004.04-2.8 ×1 cr (e) yamaha motor co., ltd..

  • Page 3: Machine Identification

    Esu00286 1- machine identification identification number records a. Frame number: cz-01e b. Engine number (primary id): cz-01e c. Key number: cz-01e record the frame number, engine number (primary id), and key number in the spaces provided for assistance when ordering spare parts from a yamaha deale...

  • Page 4: Introduction

    Esu00011 2- introduction congratulations on your purchase of a yamaha snowmo- bile. This model is the result of yamaha’s vast experience in the production of fine sporting and touring snowmo- biles. It represents the high degree of craftsmanship and reliability that have made yamaha a leader in thes...

  • Page 5: Warning

    Warning @ please read and understand this manual completely before operating the snowmo- bile. @ note: @ ● yamaha continually seeks advancements in product design and quality. Therefore, while this manual con- tains the most current product information available at the time of printing, there may be...

  • Page 6: Contents

    Esu00003 contents yamaha motor corporation, u.S.A. Snowmobile limited warranty .......................................1-1 yamaha extended service (y.E.S.) ...............................................1-4 location of the important labels .......................2-1 safety information ..................

  • Page 7

    Operation on surfaces other than snow or ice ......................................7-6 maximizing drive track life ...............7-7 strap ................................................7-8 driving .............................................7-9 stopping the engine.......................7-10 tran...

  • Page 8

    1-1 esu00004 1- yamaha motor corporation, u.S.A. Snowmobile limited warranty cw-01e u8es10.Book page 1 monday, april 12, 2004 1:25 pm.

  • Page 9

    1-2 cw-02e u8es10.Book page 2 monday, april 12, 2004 1:25 pm.

  • Page 10

    1-3 cw-03e u8es10.Book page 3 monday, april 12, 2004 1:25 pm.

  • Page 11

    1-4 esu04280 yamaha extended service (y.E.S.) cw-06e u8es10.Book page 4 monday, april 12, 2004 1:25 pm.

  • Page 12: Location of The Important

    2-1 esu04050 2- location of the important labels please read the following labels carefully before operat- ing this snowmobile. Note: @ maintain or replace safety and instruction labels, as nec- essary. @ 1 rs90/rs90m 1 rs90r/rsg90 2 3 u8es10.Book page 1 monday, april 12, 2004 1:25 pm.

  • Page 13

    2-2 4 rs90m 5 rs90m 6 rsg90 7 rsg90 8 rs90m/rsg90 u8es10.Book page 2 monday, april 12, 2004 1:25 pm.

  • Page 14

    2-3 note: @ the following suspension adjustment charts are included with the owner’s manual. @ rs90/rs90m/rs90r u8es10.Book page 3 monday, april 12, 2004 1:25 pm.

  • Page 15: Safety Information

    3-1 esu00008 3- safety information when you ride your snowmobile, you must know and use the following for your safety. Severe injury or death may result if you ignore any of the following. Before operating 1. Read the owner’s manual and all labels before oper- ating this snowmobile. Become familiar ...

  • Page 16

    3-2 7. Do not allow anyone to stand behind the snowmobile when starting, inspecting, or adjusting the snowmo- bile. A broken track, track fittings, or debris thrown by the track could be dangerous to the operator or bystanders. 8. Handle fuel with care; it is highly flammable. ● never add fuel when ...

  • Page 17

    3-3 3. This snowmobile is not designed for use on surfaces other than snow or ice. Use on dirt, sand, grass, rocks, or bare pavement may cause loss of control and may damage the snowmobile. 4. Avoid operating on glare ice, or on snow which has a lot of dirt or sand mixed in. Operation under such con...

  • Page 18: Description

    4-1 esu00012 4- description 1 windshield 2 steering handlebar 3 seat 4 frame 5 slide rail suspension 6 drive track 7 skis 8 headlights 9 shroud 0 storage compartment rs90/rs90r rs90m rsg90 u8es10.Book page 1 monday, april 12, 2004 1:25 pm.

  • Page 19

    4-2 a tail/brake lights b snow flap c brake lever d parking brake lever e grip warmer adjustment switch f headlight beam switch g strap (rs90m) h engine stop switch i thumb warmer adjustment switch j throttle lever k shift lever (rs90r/rsg90) l shroud latch m main switch n starter lever o tachometer...

  • Page 20: Control Functions

    5-1 esu00013 5- control functions esu00362 main switch the main switch controls the following items. 1 “off” the ignition circuit is switched off. The key can be removed only in this position. 2 “on” the ignition circuit is switched on. 3 “start” the starting circuit is switched on. The starter moto...

  • Page 21: Warning

    5-2 esu00201 starter lever (choke) use the starter lever (choke) when starting and warming up a cold engine. 1 starter lever (choke) 2 when starting a cold engine. 3 warming up 4 when the engine is warm. Note: @ refer the “starting the engine” section for proper opera- tion. @ esu00022 throttle leve...

  • Page 22: Warning

    5-3 esu04151 throttle override system (t.O.R.S.) if the carburetor or throttle cable should malfunction dur- ing operation, the t.O.R.S. Will operate when the throttle lever is released. The t.O.R.S. Is designed to interrupt the ignition and keep the engine speed between 2,800 and 3,000 r/min if the...

  • Page 23

    5-4 esu04160 speedometer unit the speedometer unit is equipped with the following: ● a digital speedometer (which shows riding speed) ● an odometer (which shows the total distance trav- eled) ● a tripmeter (which shows the distance traveled since it was last set to zero) ● warning indicators (which ...

  • Page 24

    5-5 esu03821 fuel meter and grip/thumb warmer level indica- tor the fuel meter and grip/thumb warmer level indicator have eight segments 1 which show the amount of fuel remaining in the fuel tank, the grip warmer level, or the thumb warmer level. Fuel meter as the fuel level decreases in the fuel ta...

  • Page 25

    5-6 esu04260 fuel level warning indicator the fuel level warning indicator indicates a malfunction- ing sensor, disconnected coupler, broken lead, or short circuit when detected by the self-diagnosis device of the snowmobile. The fuel level warning indicator 1, warning light 2, and all segments of t...

  • Page 26: Caution:

    5-7 esu04180 coolant temperature warning indicator if the engine overheats, the coolant temperature warning indicator 1 and the warning light 2 come on. When this occurs, stop the engine immediately and allow the engine to cool down, and then check the coolant level in the coolant reservoir. (see pa...

  • Page 27: Caution:

    5-8 esu00031 engine stop switch the engine stop switch 1 is used to stop the engine in an emergency. Simply push 2 the stop switch to stop the engine. To start the engine, pull 3 the stop switch and proceed with starting the engine. (see page 7-1 for more details.) during the first few rides, practi...

  • Page 28: Warning

    5-9 esu00035 parking brake lever when parking the snowmobile or starting the engine, apply the parking brake by moving the brake lever 1 to the left. To release the parking brake, move the parking brake lever 1 to the right. È to apply the parking brake É to release the parking brake warning @ ● alw...

  • Page 29: Caution:

    5-10 esu00039 headlight beam switch push the headlight beam switch to change the headlight beam to high or low. 1 headlight beam switch 2 push 3 high beam 4 low beam esu00481 shroud latches to open the shroud, unhook the shroud latches, and then slowly raise the shroud forward until it stops. When c...

  • Page 30: Caution:

    5-11 esu00053 v-belt holders keep a spare v-belt for emergency use by placing it into the v-belt holders provided. Caution: @ make sure that the v-belt is installed securely in the holders. @ esu04080 carburetor coolant shut-off lever for rs90m the carburetor coolant shut-off lever controls the flow...

  • Page 31: Pre-Operation Checks

    6-1 esu00072 6- pre-operation checks note: @ pre-operation checks should be made each time the snowmobile is used. @ warning @ the engine and muffler will be very hot after the engine has been run. Avoid touching the engine and muffler while they are still hot with any part of your body or clothing ...

  • Page 32: Caution:

    6-2 caution: @ ● oxygenated fuels (gasohol) containing a maxi- mum 5% of ethanol can be used, although richer jetting may be required to prevent engine dam- age. Consult a yamaha dealer. Gasohol contain- ing methanol is not recommended. ● make sure that snow or ice does not enter the fuel tank when ...

  • Page 33: Caution:

    6-3 esu03441 engine oil level the engine oil level should be checked before each use. Caution: @ do not run the engine with too much or not enough oil in the oil tank. Oil could flow into the air filter case and the engine could be damaged. @ checking the engine oil level 1. Place the snowmobile on ...

  • Page 34: Warning

    6-4 6. Insert the oil level gauge/dipstick into the oil filler hole, and then tighten it securely. 7. Connect the oil level gauge coupler. Esu00086 coolant check the coolant level in the coolant reservoir when the engine is cold. If the coolant level is below the “cold level” mark, add soft water un...

  • Page 35: Warning

    6-5 esu00087 throttle lever check the throttle lever operation before starting the engine. The throttle lever must open smoothly and spring back to its home position when released. Esu00090 throttle override system (t.O.R.S.) check the t.O.R.S. For proper operation. Warning @ when checking t.O.R.S.:...

  • Page 36: Warning

    6-6 esu00091 brake 1. Brake lever test the brake at a low speed when starting out to make sure that it is working properly. If the brake does not provide proper braking performance, inspect the brake for wear or brake fluid leakage. (see pages 8-19–8-20 for more details.) warning @ ● a soft, spongy ...

  • Page 37: Warning

    6-7 esu00093 brake fluid leakage apply the brake for a few minutes. Check to see if any brake fluid leaks out from the brake hose joints or the master cylinder. Warning @ if brake fluid leakage is found, ask a yamaha dealer for immediate repairs. @ caution: @ brake fluid may deteriorate painted surf...

  • Page 38: Warning

    6-8 esu00097 drive track check the drive track for deflection, wear, or damage. Adjust or replace if necessary. (see pages 8-29–8-31 for more details.) warning @ do not operate the snowmobile if you find damage to the drive track, or if it has been maladjusted. Drive track damage or failure could re...

  • Page 39: Caution:

    6-9 esu00982 slide runners check the slide runners for wear and damage. If the slide runners reach the wear limit, they should be replaced. 1 slide runners a wear limit È rs90/rs90m/rs90r É rsg90 caution: @ ride on fresh snow frequently. Operating on ice or hard packed snow will rapidly wear the sli...

  • Page 40: Caution:

    6-10 esu00103 steering system check the handlebar for excessive free play: 1. 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 noticed, consult a yamaha dealer. Esu00378 lights check the lights. Replace any burned out ...

  • Page 41

    6-11 esu00110 fittings and fasteners check the tightness of the fittings and fasteners. Tighten in proper sequence and torque if necessary. Esu00345 tool kit and recommended equipment it is good practice to carry the tool kit, spare parts, and other necessary equipment with you while riding the snow...

  • Page 42: Operation

    7-1 esu00112 7- operation esu00366 starting the engine warning @ ● be sure to check the “safety information” section carefully before starting the engine. ● make sure that the parking brake is applied. @ note: @ make sure that the engine stop switch is in the on posi- tion. The starter motor cannot ...

  • Page 43: Caution:

    7-2 esu00380 break-in there is never a more important period in the life of your engine than the period between 0 and 500 km (300 mi). For this reason, you should read the following material carefully. Since the engine is brand new, do not put an excessive load on it for the first 500 km (300 mi). T...

  • Page 44: Warning

    7-3 esu01272 riding your snowmobile getting to know your snowmobile a snowmobile is a rider active vehicle, and your riding position and your balance are the two basic factors of maneuvering your snowmobile. Riding your snowmobile requires skills acquired through practice over a period of time. Take...

  • Page 45: Warning

    7-4 turning for most snow surfaces, “body english” is the key to turning. As you approach a curve, slow down and begin to turn the handlebar in the desired direction. As you do so, put your weight on the running board to the inside of the turn and lean your upper body into the turn. This procedure s...

  • Page 46: Warning

    7-5 riding downhill when riding downhill, keep speed to a min- imum. It is important to apply just enough throttle to keep the clutch engaged while descending the hill. This will allow you to use engine compression to help slow the snowmobile, and to keep the snowmobile from rolling freely down the ...

  • Page 47: Warning

    7-6 hard-packed snow it can be more difficult to negotiate on hard-packed snow as both the skis and drive track do not have as much traction as when the snowmobile is operated on fresh snow. Avoid rapid acceleration, turning, and braking. Operation on surfaces other than snow or ice operation of you...

  • Page 48

    7-7 esu00251 maximizing drive track life recommendations track tension during initial break-in, the new drive track will tend to stretch quickly as the track settles. Be sure to correct the track tension and alignment frequently. (see pages 8-29–8-31 for adjustment procedures.) a loose track can sli...

  • Page 49: Warning

    7-8 esu00245 strap for rs90m the strap 1 should be used only by experienced opera- tors to assist them when traverse (side-hill) riding. Warning @ improper use of the strap on the handlebar can result in severe injury or death. ● use the strap only as an operator grip point when needed to shift weig...

  • Page 50: Warning

    7-9 esu00347 driving warning @ be sure to read the “safety information” and “riding your snowmobile” sections carefully before operating the snowmobile. @ note: @ make sure that the engine is warmed up enough before riding. @ for rs90/rs90m 1. Release the parking brake by moving the parking brake le...

  • Page 51: Caution:

    7-10 caution: @ do not shift from “fwd” to “rev” or from “rev” to “fwd” while the snowmobile is moving. Otherwise, the drive system could be damaged. @ note: @ the reverse buzzer beeps while the shift lever is in reverse. @ 2. Release the parking brake by moving the parking brake lever to the right....

  • Page 52

    7-11 esu00367 transporting when transporting your snowmobile on a trailer or in a truck, observe the following recommendations 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 from the roa...

  • Page 53: Periodic Maintenance

    8-1 esu00139 8- periodic maintenance esu00140 periodic maintenance chart regular maintenance is most important for best performance and safe operation. Cd-01e item remarks pre- operation check (daily) initial 1 month or 800 km (500 mi) (40 hr) every page seasonally or 3,200 km (2,000 mi) (160 hr) sp...

  • Page 54

    8-2 drive guard check for cracks, bends or damage. ∗ replace if necessary. ● 5-10, 6-7 v-belt check for wear and damage. Replace if necessary. ● 6-7, 8-15–8-17 drive track and idler wheels check deflection, and for wear and damage. ∗ adjust/replace if necessary. ● 6-8, 8-29–8-31 slide runners check ...

  • Page 55

    8-3 note: @ brake fluid replacement: 1. When disassembling the master cylinder or caliper cylinder, replace the brake fluid. Normally check the brake fluid level and add the fluid as required. 2. On the inner parts of the master cylinder and caliper cylinder, replace the oil seals every two years. 3...

  • Page 56: Caution:

    8-4 esu00376 tool kit the owner’s tool kit has the tools which are sufficient for most periodic maintenance and minor repair. A torque wrench is also necessary to properly tighten nuts and bolts. 1 tool kit caution: @ before starting the engine, make sure that the tool kit is firmly seated in the ho...

  • Page 57: Caution:

    8-5 spark plugs are produced in several different thread lengths. The thread length or reach is the distance from the spark plug gasket seat to the end of the threaded portion. If the reach is too long, overheating and engine damage may result. If the reach is too short, spark plug fouling and poor ...

  • Page 58: Caution:

    8-6 esu00370 engine idle speed adjustment caution: @ ● be sure to have a yamaha dealer make this adjustment. ● make sure that the throttle lever moves smoothly. ● make sure that the carburetor is synchronized first. @ 1. Start the engine and warm it up. Note: @ refer to the “starting the engine” sec...

  • Page 59: Caution:

    8-7 esu04190 carburetor adjustment caution: @ ● be sure to have a yamaha dealer make this adjustment. ● make sure that the air filter case is installed dur- ing running to prevent engine damage. @ under some operating conditions the carburetor setting may have to be changed due to air temperature ch...

  • Page 60: Warning

    8-8 main jet replacement replace the main jet according to the setting chart which is available at a yamaha dealer. Warning @ ● never remove the drain plug or the float chamber while the engine is hot. Fuel will flow out from the float chamber which could ignite and cause injury. ● place a rag under...

  • Page 61: Caution:

    8-9 esu00157 high altitude adjustments operating at high altitude reduces the performance of a gasoline engine to about 3% for every 305 m (1,000 ft) of elevation. This is because there is less air as altitude increases. Less air means less oxygen available for com- bustion. Your snowmobile can be a...

  • Page 62: Warning

    8-10 esu04200 changing the engine oil it is recommended to have a yamaha dealer change the engine oil. Warning @ engine oil is extremely hot immediately after the engine is turned off. Coming into contact with or get- ting any engine oil on your clothes could result in burns. @ caution: @ ● do not r...

  • Page 63

    8-11 7. Remove the oil filter cartridge 9 with an oil filter wrench. Note: @ an oil filter wrench is available at a yamaha dealer. @ 8. Apply a thin coat of engine oil to the o-ring of the new oil filter cartridge. 9. Install the new oil filter cartridge with an oil filter wrench, and then tighten i...

  • Page 64: Caution:

    8-12 13. Add sufficient oil of the recommended type to raise it to the “f” level mark on the oil level gauge/dipstick. (see page 6-3 for the checking procedure.) caution: @ ● when adding the engine oil, be careful not to fill above the “f” level mark on the oil level gauge/ dipstick. ● make sure tha...

  • Page 65: Warning

    8-13 esu00161 cooling system air bleeding the cooling system warning @ ● do not remove the coolant reservoir cap when the engine is hot. Scalding hot fluid and steam may be blown out under pressure, which could cause serious injury. When the engine has cooled, place a thick rag or towel over the coo...

  • Page 66

    8-14 coolant replenishment 1. Remove the coolant reservoir cap and pour the cool- ant to the “cold level” mark. 1 “cold level” mark 2 coolant reservoir cap 2. Start the engine and add coolant until the coolant level does not go down, and then stop the engine. 3. Fill the coolant reservoir with coola...

  • Page 67: Warning

    8-15 esu00166 v-belt replacement warning @ when installing the new v-belt, make sure it is posi- tioned 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 a. If not, the v-belt clutch engagement speed will be changed. The snowmobile may move unex...

  • Page 68

    8-16 3. Pull 3 the v-belt up over the secondary fixed sheave. 4. Remove the v-belt from the secondary sheave assembly and primary sheave assembly. 5. Put the new v-belt back on the secondary sheave assembly only. Do not force the v-belt between the sheaves; the secondary sliding and fixed sheave mus...

  • Page 69: Warning

    8-17 8. Install the v-belt over the primary sheave assembly. 9. Rotate the secondary sliding sheave clockwise 6 and push 7 it so that it separates from the secondary fixed sheave. 10. Install the v-belt 8 between the secondary sliding and secondary fixed sheaves. 11. Install the drive guard. Warning...

  • Page 70: Caution:

    8-18 3. Remove the dipstick and check that the oil is between the upper and lower levels. If not, add oil to the upper level. 2 upper level 3 lower level È for models without reverse transmissions (rs90/rs90m) É for models with reverse transmissions (rs90r/rsg90) caution: @ make sure that no foreign...

  • Page 71: Warning

    8-19 esu00174 checking the brake pads check the brake pads for wear. If the brake pads reach the wear limit, ask a yamaha dealer to replace them. 1 brake pad wear indicator esu00352 checking the parking brake pads check the parking brake pads for wear by measuring the thickness of the pads. If the p...

  • Page 72: Warning

    8-20 esu00180 checking the brake fluid level place the snowmobile on a level surface. Check that the brake fluid is above the lower level and replenish when necessary. 1 lower level warning @ be careful that water does not enter the master cylin- der when refilling. Water will significantly lower th...

  • Page 73: Caution:

    8-21 esu01911 ski spring preload adjustment the spring preload can be adjusted by turning the spring preload adjuster 1. For rs90/rs90r/rsg90 cd-11e for rs90m cd-11e caution: @ the left and right ski spring preload must be set to the same setting. Uneven settings can cause poor handling and loss of ...

  • Page 74: Warning

    8-22 warning @ this shock absorber contains highly pressurized nitrogen gas. It could explode by improper handling, causing injury or property damage. ● do not tamper with or attempt to open the shock absorber. ● do not subject the shock absorber to an open flame or other high heat source, which cou...

  • Page 75

    8-23 the spring preload can be adjusted by turning the spring preload adjuster 3 on the front and rear shock absorb- ers. For rs90/rs90r cd-17e for rsg90 cd-17e for rs90m cd-13e a spring seat length* standard increased ← → decreased preload harder ← → softer È a length (front) maximum 123.5 mm (4.86...

  • Page 76: Warning

    8-24 for rs90/rs90m/rs90r cd-23e for rsg90 cd-14e warning @ be sure to have a yamaha dealer make this adjust- ment. This shock absorber contains highly pressurized nitrogen gas. It could explode by improper handling, causing injury, or property damage. ● do not tamper with or attempt to open the sho...

  • Page 77: Caution:

    8-25 esu03890 rear suspension damping force adjustment for rsg90 the damping force can be adjusted by turning the adjuster 1. Cd-20e caution: @ ● do not continue to turn the adjuster in direction a after it stops. The shock absorber can be damaged and damping force adjustments cannot be made. ● do n...

  • Page 78: Warning

    8-26 esu01973 rear suspension full rate adjustment for rsg90 the total suspension spring rate and damping character- istics can be adjusted by changing the installed position of the shock absorber. Warning @ be sure to have a yamaha dealer make this adjustment. @ cd-07e note: @ be sure to make this ...

  • Page 79: Caution:

    8-27 esu04220 control rod adjustment the weight transfer can be adjusted by turning the con- trol rod adjusting nut 1. 1. Loosen the locknut 2 while holding the control rod adjusting nut. 2. Turn the adjusting nut in direction a to increase weight transfer or direction b to decrease weight transfer....

  • Page 80: Warning

    8-28 esu04271 anti-bottoming stopper adjustment for rs90/rs90r the spring force can be adjusted by changing the instal- lation location of the anti-bottoming stoppers. Warning @ be sure to have a yamaha dealer make this adjust- ment. @ cd-24e note: @ be sure to make this adjustment when there is no ...

  • Page 81: Warning

    8-29 esu03531 drive track adjustment warning @ a broken track, track fittings or debris thrown by the drive track could be dangerous to an operator or bystanders. Observe the following precautions: ● do not allow anyone to stand behind the snow- mobile when the engine is running. ● when the rear of ...

  • Page 82: Warning

    8-30 drive track adjustment warning @ ● be sure to have a yamaha dealer make this adjustment. ● support the snowmobile securely on a suitable stand before working underneath the snowmo- bile. ● operate the engine in a well-ventilated area. @ 1. Lift the rear of the snowmobile onto a suitable stand t...

  • Page 83: Caution:

    8-31 caution: @ the right and left adjusters should be turned to an equal amount. @ 6. Recheck alignment and deflection. If necessary, repeat steps 3 to 5 until the proper adjustment is achieved. 7. Tighten the rear axle nut. Esu00200 ski alignment 1. Turn the handlebar so the skis face straight ahe...

  • Page 84

    8-32 2. Loosen the handlebar bolts. 3. Move the handlebar up or down to adjust the handle- bar height to the desired position. È rs90/rs90r/rsg90 É rs90m a b a b u8es10.Book page 32 monday, april 12, 2004 1:25 pm.

  • Page 85: Caution:

    8-33 caution: @ make sure that the projection on the handlebar is not installed into the area a shown. @ 4. Tighten the handlebar bolts and install the handlebar cover. Caution: @ make sure that the small gap b side of the handlebar holders faces forward c. @ handlebar bolt tightening torque: 14.5 n...

  • Page 86: Warning

    8-34 esu00371 lubrication lubricate the following points. 1 throttle cable end warning @ apply a dab of grease onto the cable end only. Do not grease the throttle cable because it could become frozen, which could cause loss of control. @ 2 front suspension 3 rear suspension warning @ be sure to have...

  • Page 87: Warning

    8-35 esu00208 headlight bulb replacement 1. Lift up the shroud. 2. Disconnect the headlight connector. 3. Remove the bulb holder cover. 4. Remove the bulb holder by depressing and turning it counterclockwise. 1 bulb holder cover 5. Remove the bulb. Warning @ keep flammable products or your hands awa...

  • Page 88: Warning

    8-36 esu00355 battery this snowmobile is equipped with a sealed-type (mf) battery, which does not require any maintenance. There is no need to check the electrolyte or to add distilled water. To charge the battery have a yamaha dealer charge the battery as soon as possible if it seems to have discha...

  • Page 89: Caution:

    8-37 1. Lift up the shroud. 2. Remove the right side cover 1. 3. Unhook the latch 2. 4. Loosen the clamp screws 3. 5. Slide the oil tank breather hose clamp 4 away from the air filter case, and then disconnect the oil tank breather hose 5. 6. Slide the crankcase breather hose clamp 6 up, and then di...

  • Page 90

    8-38 e spare fuses (20 a, 10 a, 15 a, 3 a) f spare main fuse specified fuses: 9main fuse: 30 a 0“head” (headlight) fuse: 20 a a“sig” (signal) fuse: 10 a b“dc term” (auxiliary dc jack) fuse: 3 a c“c/w” (carburetor warmer) fuse: 20 a d“ign” (ignition) fuse: 15 a u8es10.Book page 38 monday, april 12, 2...

  • Page 91: Troubleshooting

    9-1 esu04240 9- troubleshooting a. Engine turns over but does not start 1. Fuel system no fuel supplied to combustion cham- ber ● no fuel in tank ... Supply fuel. ● clogged fuel line ... Clean fuel line. ● clogged carburetor ... Clean carbure- tor. Fuel supplied to combustion chamber ● flooded engin...

  • Page 92: Caution:

    9-2 2. Open the shroud. 3. Remove the red (+) lead from the lead holder and move it away from the black (-) lead. Caution: @ be sure to connect the red (+) jumper cable to the red (+) lead and the black (-) jumper cable to the black (-) lead. Do not reverse the connections. @ 4. Pull the red (+) lea...

  • Page 93: Warning

    9-3 note: @ make sure that both the red (+) lead and the black (-) lead are seated securely in the lead holders. @ warning @ be sure to pull the lead covers back over the terminals completely. If the ter- minals are exposed, they could come into contact with the frame or a metal part of the snowmobi...

  • Page 94

    9-4 j. Engine does not upshift or down- shift properly or engages harshly 1. Worn or damaged v-belt ... Replace the v-belt or ask a yamaha dealer to inspect. 2. Incorrect v-belt clutch settings for alti- tude or conditions ... Ask a yamaha dealer to inspect. 3. Worn or sticking primary sheave assemb...

  • Page 95: Storage

    10-1 esu03593 10- storage long-term storage requires some preven- tive procedures to guard against deteriora- tion. 1. Cleaning thoroughly clean the snowmobile, inside and out, to remove the corrosive salts and acids that can accumulate. Use yamaha mud, grease, and engine cleaner, or an equivalent p...

  • Page 96: Caution:

    10-2 caution: @ ● always keep the battery charged. Storing a discharged battery can cause permanent battery damage. ● to charge a sealed-type (mf) battery, a special (constant-voltage) battery charger is required. Using a conven- tional battery charger will damage the battery. If you do not have acc...

  • Page 97: Specifications

    11-1 esu00228 11- specifications esu00229 dimensions cs-01e esu00230 engine cs-02e rs90/rs90m/rs90r/rsg90 overall length 2,755 mm (108.5 in): rs90/rs90r 3,185 mm (125.4 in): rs90m 3,000 mm (118.1 in): rsg90 overall width 1,225 mm ( 48.2 in): rs90/rs90r/ rsg90 1,165 mm ( 45.9 in): rs90m overall heigh...

  • Page 98

    11-2 esu00231 chassis cs-03e rs90/rs90m/rs90r/rsg90 drive track and suspension: track molded rubber, fiber glass rod reinforced width 381 mm (15.0 in) track deflection 30–35 mm (1.18–1.38 in)/ 100 n (10 kg, 22 lb): rs90/rs90m/ rs90r 25–30 mm (0.98–1.18 in)/ 100 n (10 kg, 22 lb): rsg90 length on grou...

  • Page 99

    11-3 esu00232 electric cs-04e brake: type hydraulic disc type (ventilated disc) operation handle lever, left hand operated throttle: operation handle lever, right hand operated rs90/rs90m/rs90r/rsg90 ignition system tci spark plug type · r · cr8e (ngk) gap 0.7–0.8 mm (0.028–0.031 in) battery capacit...

  • Page 100: Wiring Dia

    12-1 es u0023 3 1- wiring dia g ram off on hi lo off on st ar t ru n st op close open g /b ch b g dg b l/ w g lg b y (3a) (20a) (10a) (20a)(20a) (15a) (black) p o/ r b /w l/ y w ch b /y br br /w ch w w w w w w w /r r w /g l/ w lg lg l/ w w /b g b o /b r /w r b (30a) g b y g b y g /y l g l /r l /r p ...

  • Page 101

    12-2 1 cr anksha ft positio n se nsor 2 a c magn eto 3 r e ct if ie r/ reg u lat or 4 ma in s w itch 5 load con tro l re la y 6 ma in fu s e 7 st ar te r re la y 8 st ar te r mo to r 9 ba tt er y 0 en gin e stop s witch a t h rottle s witch b carb uretor w a rm e r rel a y c carb uretor g rou nd d c...

  • Page 102: Owner’S Manual

    Owner’s manual snowmobile rs90k rs90mk rs90rk rsg90k 8es-28199-10 lit-12628-02-38 printed on recycled paper printed in japan 2004.04-2.8 ×1 cr (e) yamaha motor co., ltd..