Yamaha YFM90RA Owner's Manual
  1. Manuals
  2. Brands
  3. Yamaha Manuals
  4. Offroad Vehicle
  5. YFM90RA
  6. Owner's manual

Yamaha YFM90RA Owner's Manual

Raptor 90
Hide thumbs
Table of Contents

Advertisement

Quick Links

READ THIS MANUAL CAREFULLY!
It contains important safety information.
OWNER'S MANUAL
YFM90RA
This A
WARNING
This ATV should not be ridden by anyone under 12 years of age.
LIT-11626-24-16
43D-F8199-12

Advertisement

Table of Contents
loading

Related Manuals for Yamaha YFM90RA

Summary of Contents for Yamaha YFM90RA

  • Page 1 READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER’S MANUAL YFM90RA This A WARNING This ATV should not be ridden by anyone under 12 years of age. LIT-11626-24-16 43D-F8199-12...
  • Page 2 Read this manual carefully before operating this vehicle.This manual should stay with this ve- hicle if it is sold.
  • Page 5 INTRODUCTION Congratulations on your purchase of the Yamaha YFM90RA. This ATV represents the result of many years of Yamaha experience in the production of fine sporting, touring, and pacesetting racing machines. With the purchase of this Yamaha, you can now appreciate the high degree of craftsmanship and reliability that have made Yamaha a leader in these fields.
  • Page 6 ATV safely. Your ATV was delivered with an adjustable speed limiter. Yamaha recommends that all beginners start off to limit the amount of speed available while they learn. The adjusting screw may be gradually turned out as the beginner becomes more familiar with operating the ATV.
  • Page 7 IMPORTANT MANUAL INFORMATION FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERIOUS IN- JURY OR DEATH. Particularly important information is distinguished in this manual by the following notations: This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
  • Page 8 Please check your local riding laws and regulations before operating this ATV. YFM90RA OWNER’S MANUAL ©2010 by Yamaha Motor Corporation, U.S.A. 1st edition, July 2010 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, U.S.A.

  • Page 9: Table Of Contents

    Rear brake lever ........4-6 WARNING Parking brake lever ........4-7 Indicates a hazardous situation which, if not Fuel tank cap ..........4-8 avoided, could result in death or serious injury. Fuel ............4-8 Fuel cock ..........4-10 Choke ............. 4-11 Seat ............
  • Page 10 Engine break-in .......... 6-4 Checking the spark plug ......8-9 Parking ............6-4 Engine oil ..........8-11 Parking on a slope ........6-5 Final transmission oil ........ 8-14 Accessories and loading ......6-6 Cleaning the air filter elements....8-15 Cleaning the spark arrester ...... 8-19 RIDING YOUR ATV ........
  • Page 11 Cleaning ............ 9-1 Storage ............. 9-2 SPECIFICATIONS ........10-1 CONSUMER INFORMATION ..... 11-1 Identification numbers ......11-1 Noise regulation ........11-3 Maintenance record ....... 11-4 YAMAHA MOTOR CORPORATION, U.S.A. ATV LIMITED WARRANTY ..11-5 YAMAHA EXTENDED SERVICE (Y.E.S.) ..........11-7...

  • Page 12: Location Of The Warning And Specification Labels

    Read and understand all of the labels on your ATV. These labels contain important information for safe and proper operation. Never remove any labels from your ATV. If a label becomes difficult to read or comes off, request a replace- ment label from your Yamaha dealer.

  • Page 15: Safety Information

    SAFETY INFORMATION AN ATV IS NOT A TOY AND CAN BE HAZARD- OUS TO OPERATE. An ATV handles differently from other vehicles, in- – A child under 16 years old should never oper- cluding motorcycles and cars. A collision or roll- ate an ATV with engine size greater than 90 cc.
  • Page 16 operating this ATV. speeds and never turn at excessive speeds. Never operate at speeds too fast for your skills Never operate the ATV on hills too steep for the or the riding conditions. Always go at a speed ATV or for your abilities. Practice on smaller hills that is proper for the terrain, visibility, operating before attempting larger hills.
  • Page 17 Avoid crossing the side of a steep hill if possible. reduced stopping ability. Test your brakes after Always use proper procedures if you stall or roll leaving water. If necessary, apply them several backwards when climbing a hill. To avoid stall- times to let friction dry out the linings.
  • Page 18 carbon monoxide can collect rapidly and you can quickly be overcome and unable to save yourself. Also, deadly levels of carbon monoxide can linger for hours or days in enclosed or poorly ventilated areas. If you experience any symptoms of carbon monoxide poisoning, leave the area immediately, get fresh air, and SEEK MEDICAL TREATMENT.

  • Page 19: Description

    DESCRIPTION Left view Right view 1. Fuel cock 1. Spark arrester 2. Rear wheel 2. Seat 3. Footrest 3. Footrest 4. Front wheel...

  • Page 20: Controls And Instruments

    Controls and instruments The ATV you have purchased may differ slightly from the figures shown in this manual. 1. Rear brake lever 2. Parking brake lever 3. Front brake lever 4. Throttle lever 5. Main switch 6. Fuel tank cap 7.

  • Page 21: Instrument And Control Functions

    INSTRUMENT AND CONTROL FUNCTIONS WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. Main switch The positions of the main switch are as follows: All electrical systems are supplied with power, and the engine can be started. The key cannot be re- moved.

  • Page 22: Handlebar Switches

    Handlebar switches Start switch “ ” Push this switch to crank the engine with the start- See the starting instructions on page 6-1 prior to starting the engine. 1. Engine stop switch “ & ” 2. Start switch “ ” Engine stop switch “...

  • Page 23: Throttle Lever

    Regulate the speed of the ATV by varying the and a removable engine speed limiter plate. throttle position. Because the throttle is spring- Yamaha recommends that all beginning riders start loaded, the ATV will decelerate, and the engine will off with the vehicle speed limiter adjusting screw fully...

  • Page 24: Vehicle Speed Limiter

    Vehicle speed limiter 1. Loosen the locknut. 2. To increase the maximum engine power available and the maximum speed of the ATV, turn the adjusting screw in direction (a). To decrease the maximum engine power available and the maximum speed of the ATV, turn the adjusting screw in direction (b).

  • Page 25: Engine Speed Limiter Plate

    Engine speed limiter plate With this plate installed, the engine speed is limited to 4800 r/min. With this plate removed, top engine speed (8000 r/min) is available. Remove the plate as follows. 1. Remove the seat. (See page 4-11.) 2. Loosen the screws. 3.

  • Page 26: Front Brake Lever

    Rear brake lever Front brake lever The rear brake lever is located on the left handle- The front brake lever is located on the right handle- bar. To apply the rear brake, pull the brake lever to- bar. To apply the front brake, pull the brake lever ward the handlebar grip.

  • Page 27: Parking Brake Lever

    Parking brake lever Use the parking brake before starting the engine or parking the ATV, especially on a slope. To apply the parking brake, move the parking brake lever in direction (a). To release the parking brake, move the parking brake lever in direction (b). 1.

  • Page 28: Fuel Tank Cap

    Fuel tank cap 1. Before refueling, turn off the engine and be sure that the rider is off the vehicle. Never refuel while Remove the fuel tank cap by turning it counter- smoking, or while in the vicinity of sparks, open clockwise.
  • Page 29 3. Wipe up any spilled fuel immediately. NOTICE: Immediately wipe off spilled fuel with a clean, Your Yamaha engine has been designed to use dry, soft cloth, since fuel may deteriorate premium unleaded gasoline with a pump octane painted surfaces or plastic parts.

  • Page 30: Fuel Cock

    With the fuel cock lever in this position, fuel flows Fuel cock to the carburetor. Turn the fuel cock lever to this The fuel cock supplies fuel from the tank to the car- position when starting the engine and riding. buretor while also filtering it.

  • Page 31: Choke

    Choke Seat The choke is used to start a cold engine. To remove the seat Move the choke in direction (a) to turn on the Pull the seat lock lever upward and pull up the seat choke. at the rear. Move the choke in direction (b) to turn off the choke.

  • Page 32: Kickstarter

    To install the seat 2. Move the kickstarter lever down lightly with your Insert the projection on the front of the seat into the foot until the gears engage, and then push it seat holder and push down on the seat at the rear. down smoothly but forcefully.

  • Page 33: Pre-Operation Checks

    Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage. Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer.
  • Page 34 Front brake Lubricate cable if necessary. 5-3, 8-22, 8-23 Check lever free play, and adjust if necessary. Check operation. If soft or spongy, have Yamaha dealer bleed hydraulic system. Check brake pads for wear, and replace if necessary. Rear brake...

  • Page 35: Fuel

    Brake fluid leakage Check to see if any brake fluid is leaking out of the pipe joint or brake fluid reservoir. Apply the brake firmly for one minute. If there is any leakage, have a Yamaha dealer check the brake system.

  • Page 36: Throttle Lever

    Tire pressures must be equal on both sides. WARNING! Operation when released. Have a Yamaha dealer correct if of this vehicle with improper tire pressure may necessary.
  • Page 37 Set tire pressures to the following specifications: Recommended pressure: Front 25 kPa (3.6 psi) (0.25 kgf/cm Rear 25 kPa (3.6 psi) (0.25 kgf/cm Minimum: Front 22 kPa (3.2 psi) (0.22 kgf/cm Rear 22 kPa (3.2 psi) (0.22 kgf/cm 1. Low-pressure tire gauge The tire pressure gauge is included as standard equipment.

  • Page 38: Tire Wear Limit

    Tire wear limit After extensive tests, only the tires listed below have been approved for this model by Yamaha When the tire groove decreases to 3 mm (0.12 in) Motor Co., Ltd. due to wear, replace the tire. Front: Manufacturer/model:...

  • Page 39: Aftermarket Tires And Rims

    Aftermarket tires and rims The tires and rims that came with your ATV were designed to match the performance capabilities and to provide the best combination of handling, braking, and comfort. Other tires, rims, sizes,and combinations may not be appropriate. Chassis fasteners Make sure that all nuts, bolts and screws are prop- erly tightened.

  • Page 40: Operation

    2. Turn the fuel cock to “ON”. the ATV. If there is a control or function you do not 3. Turn the main switch to “ON” and the engine understand, ask your Yamaha dealer. stop switch to “ ”. WARNING This model is equipped with an ignition circuit cut- Read the Owner’s Manual carefully to become...
  • Page 41 Position (1): Ambient temp./choke position Cold engine start with ambient temperature be- 0˚ 10˚ 20˚ 30˚ ˚C low 30 °C (90 °F). 30˚ 50˚ 70˚ 90˚ ˚F Position (2): Warming up position. Position (3): Cold engine start with ambient temperature above 25 °C (80 °F).

  • Page 42: Starting A Warm Engine

    To start out and accelerate 6. If the engine is started with the choke in posi- 1. Squeeze the front brake lever to release the tion (1), the choke should be returned to posi- parking brake. tion (2) to warm up the engine. If the engine is 2.

  • Page 43: Engine Break-In

    If any engine trouble should immediately have Since the engine is brand new, do not put an ex- a Yamaha dealer check the ATV. cessive load on it for the first 320 km (200 mi) or 20 hours. The various parts in the engine wear and...

  • Page 44: Parking On A Slope

    Parking on a slope WARNING Avoid parking on hills or other inclines. Park- ing on a hill or other incline could cause the ATV to roll out of control, increasing the chance of an accident. If you must park on an incline, place the ATV transversely across the incline, stop the engine, apply the parking 1.

  • Page 45: Accessories And Loading

    Yamaha vehicles. Do not mount an accessory where it could inter- Yamaha is not in a position to test the products that fere with your ability to control the ATV. Exam- these aftermarket companies produce. Therefore,...
  • Page 46 Use extra caution when riding an ATV with ac- If you are carrying cargo and towing a trailer, in- cessories. The ATV may handle differently than clude the tongue weight in the maximum ATV it does without accessories. load limit. Load cargo on the carriers as close to the center Loading of the ATV as possible.

  • Page 47: Riding Your Atv

    RIDING YOUR ATV...

  • Page 48: Getting To Know Your Atv

    Before you begin to ride, be sure you Yamaha. They should then regularly practice have read this Owner’s Manual completely and un- the skills learned in the course and the operating derstand the operation of the controls.
  • Page 49 Not recommended for children under 12 years Riding your ATV requires skills acquired of age. through practice over a period of time. Do not attempt to operate at maximum performance until you are totally familiar with the ATV’s handling and performance characteristics. Take the time to WARNING learn the basic techniques well before attempting A child under 12 should never operate an ATV...
  • Page 50 This ATV is designed to carry operator only – passengers prohibited. The long seat is to allow the operator to shift po- sition as needed during operation. It is not for carrying passengers. WARNING! Never carry a passenger. Carrying a passenger on this ATV greatly reduces your ability to balance and control this ATV.
  • Page 51 Apparel Always wear the following to reduce risk of injury in an accident: Approved motorcycle helmet that fits properly Eye protection (goggles, helmet face shield, or protective eyewear) Over-the-ankle boots, gloves, long-sleeved shirt or jacket, and long pants An approved helmet and other personal protective equipment can reduce the severity of injuries in an accident.
  • Page 52 Do not operate after consuming alcohol or Pre-operation checks drugs. Always inspect your ATV each time you use it to The operator’s performance capability is reduced make sure the ATV is in safe operating condition. by the influence of alcohol or drugs. Consuming Perform the pre-operation checks listed on page alcohol or drugs could seriously affect your judg- 5-1.
  • Page 53 This model also has an engine speed limiter plate to limit the amount of engine power available. Yamaha recommends that all beginning riders start off with the vehicle speed limiter turned in and the engine speed limiter plate installed to limit the amount of speed available while they learn.
  • Page 54 Loading and accessories Reduce speed and allow more room to stop. A heavier vehicle takes longer to stop. As originally equipped, this ATV is not designed to Avoid hills and rough terrain. Choose terrain carry cargo or tow a trailer. If you choose to add carefully.
  • Page 55 During operation Avoid wheelies and jumping. WARNING! Attem- Always keep your feet on the footboards during pting wheelies, jumps, and other stunts in- operation; otherwise, they may contact the rear creases the chance of an accident, including wheels. WARNING! Removing even one hand an overturn.
  • Page 56 ATV should be gen- the engine has stopped. To reduce the risk of fire uine Yamaha or equivalent components designed during operation or after leaving the ATV, do not for use on this ATV and should be installed and used let brush, grass and other materials collect under according to instructions.

  • Page 57: Be Careful Where You Ride

    To prevent burns, avoid touching the exhaust system. BE CAREFUL WHERE YOU RIDE Park the ATV in a place where pedestrians or This ATV is designed for off-road use only. children are not likely to touch it. WARNING! Paved surfaces may seriously affect handling and control of the ATV, and may cause the ATV to go out of control.
  • Page 58 Do not ride on any public road, street, or highway. Riding on public roads can result in collisions with other vehicles. In many states it is illegal to operate ATVs on public streets, roads and highways. WARNING! Never operate this ATV on any public street, road or highway, even a dirt or gravel one.
  • Page 59 Know the terrain where you ride. Ride cautiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and other hidden hazards which may cause the ATV to upset. WARNING! The ATV could go out of control if you do not have enough time to react to hidden rocks, bumps, or holes.
  • Page 60 Do not operate on rough, slippery, or loose terrain When riding in an area where you might not easily until you have learned and practiced the skills nece- be seen, such as desert terrain, mount a caution ssary to control the ATV on such terrain. Always flag on the ATV.

  • Page 61: Turning Your Atv

    Do not ride in areas posted “no trespassing”. member that the engine and exhaust pipe will be hot when riding and afterwards; do not allow skin Do not ride on private property without getting per- or clothing to come in contact with these compo- mission.
  • Page 62 To achieve maximum traction while riding off-road, the two rear wheels turn together at the same speed. Therefore, unless the wheel on the inside of the turn is allowed to slip or lose some traction, the ATV will resist turning. A special turning technique must be used to allow the ATV to make turns quickly and easily.

  • Page 63: Climbing Uphill

    curves. Shift your weight forward. Improper riding procedures such as abrupt throttle Never open the throttle suddenly. The ATV changes, excessive braking, incorrect body move- could flip over backwards. ments, or too much speed for the sharpness of the Never go over the top of any hill at high speed. turn may cause the ATV to tip.
  • Page 64 It is important when climbing a hill to make sure that your weight is transferred forward on the ATV. This can be accomplished by leaning forward and, on steeper inclines, standing on the footboards and leaning forward over the handlebars. Whenever possible, ride straight up hills.
  • Page 65 If your ATV has stalled or stopped and you believe you can continue up the hill, restart carefully to make sure you do not lift the front wheels which could cause you to lose control. If you are unable to con- tinue up the hill, dismount the ATV on the uphill side.

  • Page 66: Riding Downhill

    　 Shift your weight backward and to the up side of the hill. 　 Never go down a hill at high speed. 　 Avoid going down a hill at an angle that would cause the ATV to lean sharply to one side.

  • Page 67: Crossing A Slope

    Whenever possible, ride your ATV straight downhill. CROSSING A SLOPE Avoid sharp angles which could allow the ATV to tip WARNING or roll over. Carefully choose your path and ride no Improperly crossing hills or turning on hills could faster than you will be able to react to obstacles cause loss of control or cause the ATV to over- which may appear.

  • Page 68: Crossing Through Shallow Water

    body in the uphill direction. It may be necessary to CROSSING THROUGH SHALLOW WATER correct the steering when riding on loose surfaces WARNING by pointing the front wheels slightly uphill. When Operating this vehicle through deep or fast- riding on slopes, be sure not to make sharp turns flowing water can lead to loss of control or over- either up or down hill.
  • Page 69 After riding your ATV in water, be sure to drain the trapped water by removing the check hose at the Test your brakes after leaving the water. If necess- bottom of the air filter case. NOTICE: Undrained ary, apply them several times to let friction dry out water can cause damage or improper operation.

  • Page 70: Riding Over Rough Terrain

    RIDING OVER ROUGH TERRAIN WARNING Riding improperly over obstacles could cause loss of control or a collision. Before operating in a new area, check for obstacles. Never att- empt to ride over large obstacles, such as large rocks or fallen trees. When you go over ob- stacles, always follow proper procedures as described in the Owner’s Manual.

  • Page 71: Sliding And Skidding

    SLIDING AND SKIDDING WARNING Skidding or sliding improperly may cause you to lose control of this ATV. You may also regain traction unexpectedly, which may cause the ATV to overturn. 　 Learn to safely control skidding or sliding 　 by practicing at low speeds and on level, 　...

  • Page 72: What To Do If

    WHAT TO DO IF... This section is designed to be a reference guide only. Be sure to read each section on riding tech- niques completely. WHAT TO DO... If your ATV doesn’t turn when you want it to: Bring the ATV to a stop and practice the turning maneuvers again.
  • Page 73 If your ATV can’t make it up a hill you are trying If your ATV encounters shallow water: to climb: Ride slowly and carefully through slow moving Turn the ATV around if you still have forward water, watching for obstacles. Be sure to let wa- speed.

  • Page 74: Periodic Maintenance And Adjustment

    If you are not familiar with vehicle service, have a YAMAHA The intervals given in the periodic maintenance and dealer perform the service. lubrication chart should be considered as a general guide under normal riding conditions.

  • Page 75: Owner's Manual And Tool Kit

    If you do not have the tools or experience required for a particular job, have a Yamaha dealer perform it for you. 1. Owner ’s manual 2. Low-pressure tire gauge...

  • Page 76: Periodic Maintenance Chart For The Emission Control System

    However, keep in mind that if the ATV isn’t used for a long period of time, the month maintenance intervals should be followed. Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
  • Page 77 INITIAL EVERY month Whichev- CHECK OR MAINTENANCE ITEM er comes 1300 2500 2500 5000 first (mi) (200) (800) (1600) (1600) (3200) hours Check for leakage and replace gasket(s) if neces- sary. √ √ √ Exhaust system Check for looseness and tighten all screw clamps and joints if necessary.

  • Page 78: General Maintenance And Lubrication Chart

    General maintenance and lubrication chart INITIAL EVERY month Whichev- CHECK OR MAINTENANCE er comes ITEM 1300 2500 2500 5000 first (mi) (200) (800) (1600) (1600) (3200) hours Every 20–40 hours (more often in wet or Air filter element Clean and replace if necessary. dusty areas) Clutch Check operation.
  • Page 79 INITIAL EVERY month Whichev- CHECK OR MAINTENANCE er comes ITEM 1300 2500 2500 5000 first (mi) (200) (800) (1600) (1600) (3200) hours Check for looseness or damage, and replace if √ √ √ √ Wheel hub bearings necessary. Make sure that all nuts, bolts, and screws are 10 * Chassis fasteners √...
  • Page 80 INITIAL EVERY month Whichev- ITEM INSPECT OR MAINTAIN er comes 1300 2500 2500 5000 first (mi) (200) (800) (1600) (1600) (3200) hours • Check operation and correct if necessary. Throttle lever hous- • Check throttle cable free play and adjust if neces- √...
  • Page 81 Some maintenance items need more frequent service if you are riding in unusually wet, dusty, sandy or muddy areas, or at full-throttle. Hydraulic brake service Regularly check and, if necessary, correct the brake fluid level. Every two years replace the brake master cylinder and caliper, and change the brake fluid. Replace the brake hoses every four years and if cracked or damaged.

  • Page 82: Checking The Spark Plug

    WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. Checking the spark plug The spark plug is an important engine component, which is easy to check. Since heat and deposits will cause any spark plug to slowly erode, the spark plug should be removed and checked in accor- dance with the periodic maintenance and lubrica- tion chart.
  • Page 83 If the spark plug shows a distinctly different color, the engine could be operating improperly. Do not attempt to diagnose such problems yourself. In- stead, have a Yamaha dealer check the ATV. 2. Check the spark plug for electrode erosion 1. Spark plug gap...

  • Page 84: Engine Oil

    2. Clean the surface of the spark plug gasket To check the engine oil level and its mating surface, and then wipe off any 1. Place the ATV on a level surface. grime from the spark plug threads. 2. Check the engine oil level on a cold engine. 3.
  • Page 85 4. Insert the dipstick into the filler hole (without To change the engine oil screwing it in), and then remove it again to 1. Place the ATV on a level surface. check the oil level. 2. Start the engine, warm it up for several min- utes, and then turn it off.
  • Page 86 8. Start the engine,check oil lubrication by oil Tightening torque: check bolt, and then let it idle for several min- Engine oil drain bolt: utes while checking it for oil leakage. If oil is 8 Nm (0.8m·kgf, 5.8 ft·lbf) leaking, immediately turn the engine off and check for the cause.

  • Page 87: Final Transmission Oil

    The final transmission case must be checked for oil leakage before each ride. If any leakage is found, have a Yamaha dealer check and repair the ATV. In addition, the final transmission oil must be changed at the intervals specified in the periodic maintenance and lubrication chart.

  • Page 88: Cleaning The Air Filter Elements

    Tightening torque: Cleaning the air filter elements Final transmission oil drain bolt: The air filter elements should be cleaned at the in- 15 Nm (1.5 m·kgf, 10.8 ft·lbf) tervals specified in the periodic maintenance and lubrication chart. Clean the air filter elements more 5.
  • Page 89 1. Air filter case check hose (right) 1. Air filter case cover (right) 2. Bolts 1. Remove the air filter case covers by remov- ing the bolts. 1. Air filter case cover (left) 2. Bolts 8-16...
  • Page 90 2. Remove the air filter elements by removing the Squeeze the excess solvent out of the sponge screws, and then pull off the sponge materials materials and let them dry. NOTICE: Do not from the air filter element holders. twist the sponge materials when squeezing them.
  • Page 91 This will allow unfiltered air 6. Apply Yamaha foam air filter oil or other qual- to enter the engine, causing rapid engine ity foam air filter oil to the sponge materials. wear and possible engine damage. Addition- ally, operation without the air filter elements...

  • Page 92: Cleaning The Spark Arrester

    Cleaning the spark arrester 2. Remove the spark arrester by pulling it out of the muffler. Be sure the exhaust pipe and muffler are cool be- 3. Tap the spark arrester lightly, and then use fore cleaning the spark arrester. a wire brush to remove any carbon deposits.

  • Page 93: Adjusting The Carburetor

    Always let the exhaust system cool prior to Yamaha dealer, who has the necessary profes- touching exhaust components. sional knowledge and experience. The adjustment Always wear eye protection, and make sure described in the following section, however, may no one is behind the ATV.

  • Page 94: Checking The Throttle Cable Free Play

    1600–1800 r/min it, turn the screw in direction (b). If the specified idling speed cannot be obtained as described above, have a Yamaha dealer make the adjustment. Checking the throttle cable free play The throttle cable free play should be checked at the intervals specified in the periodic maintenance and lubrication chart.

  • Page 95: Valve Clearance

    To essary, have a Yamaha dealer adjust it. prevent this from occurring, the valve clearance must be adjusted by a Yamaha dealer at the inter- vals specified in the periodic maintenance and lu- brication chart.

  • Page 96: Adjusting The Front Brake Lever Free Play

    The brake lever free play should measure 4.0– 12mm (0.47in), the brake shoes should be replaced 6.0 mm (0.16–0.24 in) as shown. If the free play as a set by Yamaha dealer. is incorrect, adjust it as follows. 1. Upper adjusting bolt 2.

  • Page 97: Adjusting The Parking Brake Free Play

    1. Cable joint 1. Upper locknut 2. Upper adjusting bolt 3. Lower locknut 6. Tighten the upper locknut. 4. Lower adjusting bolt 4. Tighten the lower locknut. 5. While applying the front brake, turn out the up- Adjusting the parking brake free play per adjusting bolt until the upper and lower ca- The parking brake free play must be checked and, ble lengths are equal.
  • Page 98 1. Release the parking brake by moving the If the cable length cannot be adjusted to specifica- parking brake lever to the left. tion, consult a Yamaha dealer. 2. Fully loosen the locknut and the adjusting bolt 5. Tighten the locknut on the brake cable.

  • Page 99: Checking The Rear Brake Pads

    Tightening torque: have a Yamaha dealer replace the brake pads as a Locknut (rear brake caliper): set. 16 Nm (1.6 m·kgf, 11.6 ft·lbf) WARNING Operating with improperly serviced or adjusted brakes could cause the brakes to malfunction, resulting in reduced braking performance.

  • Page 100: Changing The Rear Brake Fluid

    The brake lever free play should measure 0 –1.5 mm (0 –0.06 in) as shown. If the free play is incorrect, have a Yamaha dealer check the brake system. 1. Minimum level mark...

  • Page 101: Drive Chain Slack

    Drive chain slack The drive chain slack should be checked before each ride and adjusted if necessary. To check the drive chain slack 1. Place the ATV on a level surface. When checking and adjusting the drive chain slack, there should be no weight on the ATV and 1.

  • Page 102: Lubricating The Drive Chain

    Lubricating the drive chain NOTICE The drive chain must be cleaned and lubricated at Excessive chain slack will overload the engine the intervals specified in the periodic maintenance and other vital parts; keep the slack within the and lubrication chart, otherwise it will quickly wear specified limits.

  • Page 103: Checking And Lubricating The Cables

    If a cable is damaged or does not move pivots should be lubricated if necessary. smoothly, have a Yamaha dealer check or replace it. Recommended lubricant: Recommended lubricant: Front brake lever:...

  • Page 104: Checking The Wheel Hub Bearings

    However, the battery lead connections need to be have a Yamaha dealer check the wheel hub bearings. checked and, if necessary, tightened. NOTICE Never attempt to remove the battery cell seals, as this would permanently damage the battery.
  • Page 105 Be sure the battery is fully charged. To charge the battery 1. Place the battery in its compartment. Have a Yamaha dealer charge the battery as soon 2. Make sure to properly connect the battery as possible if it seems to have discharged. Keep in leads to the battery terminals.

  • Page 106: Replacing The Fuse

    Yamaha dealer charge your battery. 2. Remove the blown fuse, and then install a new fuse of the specified amperage.

  • Page 107: Removing A Wheel

    Removing a wheel Installing a wheel 1. Loosen the wheel nuts. 1. Install the wheel and the nuts. When installing the wheel, make sure its arrow mark points toward the rotating direction of the wheel. Front 1. Wheel nuts 2. Elevate the ATV and place a suitable stand under the frame.

  • Page 108: Troubleshooting

    45 Nm (4.5 m·kgf, 33 ft·lbf) systems yourself. However, should your ATV re- quire any repair, take it to a YAMAHA dealer, whose skilled technicians have the necessary tools, expe- rience, and know-how to service the ATV properly.

  • Page 109: Troubleshooting Chart

    Remove the spark plug and check the electrodes. The engine does not start. Have a Yamaha dealer check the ATV. Check the battery. 4. Battery The engine turns over The battery is good.

  • Page 110: Cleaning And Storage

    CLEANING AND STORAGE applications such as those available in coin- Cleaning operated car washers. Frequent, thorough cleaning of your ATV will not 4. Once most of the dirt has been hosed off, only enhance its appearance but will improve its wash all surfaces with warm water and mild, general performance and extend the useful life of detergent-type soap.

  • Page 111: Storage

    Storage Long-term Before storing your ATV for several months: 1. Follow all the instructions in the “Cleaning” Short-term section of this chapter. Always store your ATV in a cool, dry place and, if 2. Turn the fuel cock lever to “OFF”. necessary, protect it against dust with a porous 3.
  • Page 112 plug, and then place the spark plug on the cylinder head so that the electrodes are Make any necessary repairs before storing the grounded. (This will limit sparking during ATV. the next step.) d. Turn the engine over several times with the starter.

  • Page 113: Specifications

    SPECIFICATIONS Compression ratio: Dimensions: 10.2 : 1 Overall length: Starting system: 1490 mm (58.7 in) Electric starter & kickstarter Overall width: Lubrication system: 885 mm (34.8 in) Wet sump Overall height: 910 mm (35.8 in) Seat height: Engine oil: 654 mm (25.7 in) Type: Wheelbase: YAMALUBE 4, SAE5W-30 or SAE10W-40 or SAE20W-50...
  • Page 114 Transmission: Engine oil quantity: Periodic oil change: Primary reduction system: 0.8 L (0.84 US qt) (0.70 Imp.qt) V-belt Final transmission oil: Primary reduction ratio: 2.47-0.61:1 Type: Secondary reduction system: SAE80 API GL-4 Hypoid gear oil Spur Quantity: Secondary reduction ratio: 0.30 L (0.32 US qt) (0.27 Imp.qt) 41/15 ×...
  • Page 115 Front wheel: Rear tire: Wheel type: Type: Panel wheel Tubeless Rim size: Size: 8 x 5.5AT AT18 x 9-8 Rear wheel: Manufacturer/model: Wheel type: MAXXIS/M940 Panel wheel Loading: Rim size: Maximum loading limit: 8 x 7AT 70.0 kg (154 lb) Front brake: (Total weight of rider, cargo, accessories, and tongue) Type:...
  • Page 116 Wheel travel: 111 mm (4.4 in) Rear suspension: Type: Swingarm Spring/shock absorber type: Coil spring/oil damper Wheel travel: 83 mm (3.3 in) Electrical system: Ignition system: Charging system: AC magneto Battery: Model: GTX5L-BS Voltage, capacity: 12 V, 4.0 AH Fuses: Main fuse: 10 A 10-4...

  • Page 117: Consumer Information

    Yamaha dealer or for ref- erence in case the ATV is stolen. KEY IDENTIFICATION NUMBER: VEHICLE IDENTIFICATION NUMBER: 1.
  • Page 118 The model label is affixed at the location in the il- as required by federal law, state law and Environ- lustration. Record the information on this label in ment Canada. the space provided. This information will be need- ed when ordering spare parts from a Yamaha deal- 11-2...

  • Page 119: Noise Regulation

    Noise regulation TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED: Federal law prohibits the following acts or the causing thereof: (1) The removal or rendering inoperative by any person other than for purposes of maintenance, repair, or replacement of any device or element of de- sign incorporated into any new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use or (2) the use of the vehicle after such device or element of design has been removed or rendered inoperative by any person.

  • Page 120: Maintenance Record

    Maintenance record Copies of work orders and/or receipts for parts you purchase and install will be required to document main- tenance done in accordance with the warranty. The chart below is printed only as a reminder to you that the maintenance work is required.

  • Page 121: Yamaha Motor Corporation, U.s.a. Atv Limited Warranty

    (6) months from the date of purchase. appropriate owner’s manual; YAMAHA MOTOR CORPORATION, U.S.A. MAKES NO 2. Give notice to an authorized Yamaha ATV dealer OTHER WARRANTY OF ANY KIND, EXPRESSED OR of any and all apparent defects within ten (10) days DURING THE PERIOD OF WARRANTY any authorized IMPLIED.
  • Page 122 Attention: Warranty Department 3. Each Yamaha ATV dealer is held responsible for his setup, service and war- ranty repair work. This will ensure that Yamaha Motor Corporation, U.S.A. has an up-to-date registration record in accordance with federal law.

  • Page 123: Yamaha Extended Service (Y.e.s.)

    Y.E.S. coverage is transferable to a new owner if you shows in the comprehensive coverage benefits. There sell or trade in your ATV. That can make your Yamaha are no mileage limitations. Coverage isn ’t limited to much more valuable! “moving par ts”...
  • Page 124 Y.E.S. costs less within the first 90 days after you buy your Yamaha. See your dealer today! A special note: If visiting your dealer isn’t convenient, contact Yamaha with your Primar y ID number (your frame number). We’ll be happy to help you get the Y.E.S. coverage you need.
  • Page 125 11-9...
  • Page 126 INDEX Accessories and loading ..........6-6 Engine break-in .............. 6-4 Air filter element, cleaning..........8-15 Engine, cold start............6-1 Engine idling speed............8-20 Engine oil............5-3, 8-11 Battery................8-31 Engine, starting a warm..........6-3 Brake lever, front.............4-6 Engine stop switch............4-2 Brake lever, rear.............4-6 Engine speed limiter plate..........4-5 Brake lever free play, checking the rear......8-27 Brake lever free play, adjusting the front......8-23 Brake levers, checking and lubricating ......8-30...
  • Page 127 Main switch ..............4-1 Throttle cable free play, checking........8-21 Maintenance and lubrication chart........8-5 Throttle lever............4-3, 5-4 Maintenance chart, emission control system....8-3 Tire and rims, aftermarket..........5-7 Model label..............11-2 Tire information............. 5-6 Tire pressure, measuring ..........5-4 Tires ................5-4 Tire wear limit..............5-6 Owner’s manual and tool kit...........
  • Page 128 LOCATE AND READ OWNER’S MANUAL. FOLLOW ALL INSTRUCTIONS AND WARNINGS. (For replacement manual, call 1-800-532-1558) YAMAHA MOTOR CO., LTD. PRINTED IN TAIWAN PRINTED ON RECYCLED PAPER 2010.07...

Table of Contents