Yamaha YFM70RSEW Owner's Manual
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Yamaha YFM70RSEW Owner's Manual

Yamaha YFM70RSEW Owner's Manual

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READ THIS MANUAL CAREFULLY!
It contains important safety information.
OWNER'S MANUAL
YFM70RSEW
This A
WARNING
This ATV should not be ridden by anyone under 16 years of age.
LIT-11626-20-34
1S3-28199-13

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Summary of Contents for Yamaha YFM70RSEW

  • Page 1 READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER’S MANUAL YFM70RSEW This A WARNING This ATV should not be ridden by anyone under 16 years of age. LIT-11626-20-34 1S3-28199-13...
  • Page 2 EBU17091...
  • Page 3 Yamaha experience in the production of fine sporting, touring, and pace-setting 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 4 EBU17330 IMPORTANT MANUAL INFORMATION EBU17341 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: The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! Failure to follow WARNING instructions could result in severe injury WARNING...
  • Page 5 EBU17350 IMPORTANT NOTICE EBU17360 Welcome to the Yamaha world of motor sports! This ATV is designed and manufactured for OFF-ROAD use only. It is illegal and unsafe to operate this ATV on any public street, road or highway. This ATV complies with all applicable OFF-ROAD noise level and spark arrester laws and regulations in effect at the time of manufacture.

  • Page 6: Table Of Contents

    EWB00010 Clutch lever ..........4-6 WARNING Brake lever ..........4-6 Brake pedal ..........4-7 Indicates a potential hazard that could result in Parking brake lever ........4-7 serious injury or death. Shift pedal ..........4-8 Reverse knob “REV” ........4-9 Fuel tank cap ..........
  • Page 7 OPERATION ..........6-1 Periodic maintenance chart for the emission control system ......8-3 Starting the engine ........6-1 General maintenance and lubrication Operating the reverse knob and driving in chart ............8-4 reverse ............ 6-2 Removing and installing the panel ..... 8-7 Shifting ............
  • Page 8 Troubleshooting charts ......8-49 CLEANING AND STORAGE......9-1 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...

  • Page 9: Safety Information

    EBU17430 SAFETY INFORMATION SAFETY INFORMATION EBU26660 ate an ATV with engine size greater than 90 cc. Never allow a child under age 16 to operate an AN ATV IS NOT A TOY AND CAN BE HAZARD- ATV without adult supervision, and never allow OUS TO OPERATE.
  • Page 10 conditions, and your experience. Always follow proper procedures for climbing Never attempt wheelies, jumps, or other stunts. hills as described in this manual. Check the ter- Always inspect your ATV each time you use it to rain carefully before you start up any hill. Never make sure it is in safe operating condition.
  • Page 11 speed when climbing a hill. If you stall or roll behind you when you operate in reverse. When backwards, follow the special procedure for it is safe to proceed in reverse, go slowly. braking described in this manual. Dismount on Always use the size and type of tires specified in the uphill side or to a side if pointed straight up- this manual.
  • Page 12 EWB02320 HOW TO AVOID THE HAZARD WARNING If you should swallow some gasoline or in- POTENTIAL HAZARD hale a lot of gasoline vapor, or get some gas- Improper handling of gasoline. oline in your eyes, seek medical help WHAT CAN HAPPEN immediately.

  • Page 13: Location Of The Warning And Specification Labels

    EBU17660 LOCATION OF THE WARNING AND SPECIFICATION LABELS...
  • Page 14 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 WARNING WARNING Improper ATV use can result in SEVERE INJURY or DEATH. UNDER ALWAYS USE NEVER USE NEVER CARRY NEVER USE AN APPROVED ON PUBLIC PASSENGERS WITH DRUGS HELMET AND ROADS OR ALCOHOL PROTECTIVE GEAR Operating this ATV if you are under NEVER operate : without proper training or instruction.
  • Page 16 WARNING WARNING IMPROPER TIRE PRESSURE OR OVERLOADING CAN NEVER ride as a CAUSE LOSS OF CONTROL. LOSS OF CONTROL CAN RESULT IN SEVERE passenger. INJURY OR DEATH. OPERATING TIRE PRESSURE: Set with tires cold Passengers can cause Recommended : FRONT : 27.5 kPa, { 0.275 kgf/cm } 4.0 psi a loss of control, REAR : 27.5 kPa, { 0.275 kgf/cm...

  • Page 17: Description

    EBU17680 DESCRIPTION EBU17690 EBU17700 Left view Right view 1. Engine oil tank 1. Spark arrester 2. Coolant reservoir 2. Seat 3. Idle adjusting screw 3. Headlight 4. Tail/brake light 4. Brake pedal 5. Shift pedal...

  • Page 18: Controls And Instruments

    EBU17712 NOTE: Controls and instruments The ATV you have purchased may differ slightly from the figures shown in this manual. 1. Clutch lever 2. Parking brake lever 3. Main switch 4. Brake lever 5. Throttle lever 6. Reverse knob 7. Fuel tank cap 8.

  • Page 19: Instrument And Control Functions

    EBU17720 INSTRUMENT AND CONTROL FUNCTIONS EWB00010 WARNING Indicates a potential hazard that could result in serious injury or death. EBU17760 Main switch The positions of the main switch are as follows: All electrical systems are supplied with power. The headlights and taillight come on when the light switch is on, and the engine can be started.

  • Page 20: Indicator Lights And Warning Lights

    The electrical circuit of the warning light can be checked by turning the key to “ON”. If the warning light does not come on, and then go off, have a Yamaha dealer check the electrical circuit. ECB00010 CAUTION: 1. Neutral indicator light “N”...

  • Page 21: Handlebar Switches

    ” This warning light comes on or flashes when an electrical circuit monitoring the engine is defective. When this occurs, have a Yamaha dealer check the self-diagnosis system. The electrical circuit of the warning light can be checked by turning the key to “ON”. If the warning 1.

  • Page 22: Throttle Lever

    EBU18090 tle lever will increase the engine speed. Start switch “START” Regulate the speed of the ATV by varying the Push this switch to crank the engine with the start- throttle position. Because the throttle is spring- loaded, the ATV will decelerate, and the engine will ECB00050 return to an idle any time the hand is removed from CAUTION:...

  • Page 23: Speed Limiter

    If it does not work smoothly, check for the cause. Correct the problem before riding the ATV. Consult a Yamaha dealer if you can’t find or solve the problem yourself. 1. Locknut 2. Adjusting screw EBU18311 3.

  • Page 24: Clutch Lever

    EWB00190 off system.) WARNING POTENTIAL HAZARD Improper adjustment of the speed limiter and throttle. WHAT CAN HAPPEN The throttle cable could be damaged. Im- proper throttle operation could result. You could lose control, have an accident or be in- jured. HOW TO AVOID THE HAZARD Do not turn the adjusting screw out more than 12 mm (0.47 in).

  • Page 25: Brake Pedal

    1. Brake lever 1. Brake pedal 2. Locknut 3. Brake lever position adjusting bolt EBU18510 4. Distance between brake lever and handlebar grip Parking brake lever Use the parking brake before starting the engine or EBU18432 Brake pedal parking the ATV, especially on a slope. To apply the parking brake, move the parking brake lever in The brake pedal is located on the right side of the direction (a).

  • Page 26: Shift Pedal

    EWB00170 WARNING POTENTIAL HAZARD Improper use of the parking brake. WHAT CAN HAPPEN The ATV could start moving unexpectedly if the parking brake is not applied before start- ing the engine. This could cause loss of con- trol or a collision. The brake could overheat if you ride the ATV without releasing the parking brake.

  • Page 27: Reverse Knob "Rev

    when shifting. 1. Reverse knob “REV” 1. Shift pedal EBU18720 Fuel tank cap EBU18640 Reverse knob “REV” Remove the fuel tank cap by turning it counter- The reverse knob is used to shift into reverse. See clockwise. the “Reverse knob operation and reverse driving” section on page 6-2 before operating this ATV in reverse.

  • Page 28: Fuel

    1. Filler tube 1. Fuel tank cap 2. Fuel level EBU18730 Fuel Recommended fuel: Make sure that there is sufficient fuel in the tank. UNLEADED GASOLINE ONLY Fill the fuel tank to the bottom of the filler tube as Fuel tank capacity: shown.

  • Page 29: Seat

    EWB00270 WARNING Your Yamaha engine has been designed to use POTENTIAL HAZARD regular unleaded gasoline with a pump octane Improper care when refueling. number [(R+M)/2] of 86 or higher, or a research oc- WHAT CAN HAPPEN tane number of 91 or higher.

  • Page 30: Adjusting The Front Shock Absorber Assemblies

    1. Seat lock lever 1. Projection 2. Seat holder To install the seat EBU27892 Insert the projections on the front of the seat into Adjusting the front shock absorber the seat holders and push down on the seat at the assemblies rear.
  • Page 31 Do not dispose of a damaged or worn out shock absorber assembly yourself. Take NOTE: the shock absorber assembly to a Yamaha A special wrench can be obtained at a Yamaha dealer for any service. dealer to make this adjustment. The spring preload setting is determined by Spring preload measuring distance A, shown in the illustration.
  • Page 32 adjusting nut, distance A is changed by 1.5 mm 3. Tighten the locknut to the specified torque. (0.06 in). Tightening torque: Locknut: Spring preload setting: 30 Nm (3.0 m·kgf, 22 ft·lbf) Minimum (hard): Distance A = 246.5 mm (9.7 in) ECB00080 Standard: CAUTION:...
  • Page 33 Compression damping force Compression damping force (for fast compression damping) 1. To increase the compression damping force and thereby harden the compression damp- ing, turn the adjusting bolt in direction (a). To decrease the compression damping force and thereby soften the compression damping, turn the adjusting bolt in direction (b).
  • Page 34 Compression damping setting (for fast com- pression damping): Minimum (soft): Adjusting bolt 3 turn(s) out from the fully turned in position Standard: Adjusting bolt 1 1/4 turn(s) out from the ful- ly turned in position Maximum (hard): Adjusting bolt fully turned in 1.

  • Page 35: Specifications

    the minimum and maximum settings. EWB00350 WARNING NOTE: POTENTIAL HAZARD Improper shock absorber assembly adjust- Although the total number of clicks of a damping ment. force adjusting mechanism may not exactly match WHAT CAN HAPPEN the above specifications due to small differences in Uneven adjustment can cause poor handling production, the actual number of clicks always rep- and loss of stability, which could lead to an...
  • Page 36 Do not dispose of a damaged or worn out shock absorber assembly yourself. Take NOTE: the shock absorber assembly to a Yamaha A special wrench can be obtained at a Yamaha dealer for any service. dealer to make this adjustment. The spring preload setting is determined by Spring preload measuring distance A, shown in the illustration.
  • Page 37 adjusting nut, distance A is changed by 1.5 mm 3. Tighten the locknut to the specified torque. (0.06 in). Tightening torque: Locknut: Spring preload setting: 42 Nm (4.2 m·kgf, 30 ft·lbf) Minimum (hard): Distance A = 228 mm (8.98 in) ECB00080 Standard: CAUTION:...
  • Page 38 damping) 1. To increase the compression damping force and thereby harden the compression damp- ing, turn the adjusting bolt in direction (a). To decrease the compression damping force and thereby soften the compression damping, turn the adjusting bolt in direction (b). 1.
  • Page 39 Compression damping setting (for fast com- pression damping): Minimum (soft): Adjusting bolt 4 turn(s) out from the fully turned in position Standard: Adjusting bolt 2 turn(s) out from the fully turned in position Maximum (hard): Adjusting bolt fully turned in 1.
  • Page 40 ECB00090 HOW TO AVOID THE HAZARD CAUTION: Never touch the compression damping force Never turn an adjusting mechanism beyond adjusting screw, rebound damping force ad- the minimum and maximum settings. justing screw or oil reservoir with your bare hand or skin until suspension components NOTE: have cooled.

  • Page 41: Pre-Operation Checks

    Before operating this ATV, be sure to check the items listed in the following table. NOTE: The maintenance of some items in the table has to be performed by a Yamaha dealer. Refer to the “Periodic maintenance and lubrication chart” on page 8-3 to determine which service should be performed by a Yamaha dealer.
  • Page 42 ITEM ROUTINE PAGE Check operation. If soft or spongy, have Yamaha dealer bleed hydraulic system. Check brake pads for wear, and replace if necessary. Rear brake 5-5, 8-25, 8-26, 8-29 Check brake fluid level in reservoir, and add recommended brake fluid to specified level if necessary.
  • Page 43 EWB00470 WARNING POTENTIAL HAZARD Failure to inspect the ATV before operating. Failure to properly maintain the ATV. WHAT CAN HAPPEN Increases the possibility of an accident or equipment damage. HOW TO AVOID THE HAZARD Always inspect your ATV each time you use it to make sure it is in safe operating condition. Always follow the inspection and maintenance procedures and schedules described in the Own- er’s Manual.

  • Page 44: Fuel

    EBU19530 EBU19620 Fuel Coolant Make sure that there is sufficient fuel in the tank. Make sure that the coolant is at the specified level. (See page 4-10.) Add coolant as necessary. (See page 8-14.) EWB00500 NOTE: WARNING The coolant level must be checked on a cold en- POTENTIAL HAZARD gine since the level varies with engine tempera- Improper care when refueling.

  • Page 45: Front And Rear Brakes

    Check that there is no free play in the brake le- make sure they are working properly. If the brakes ver. If there is free play, have a Yamaha dealer do not provide proper braking performance, check check the brake system.

  • Page 46: Throttle Lever

    Throttle lever The tires listed below have been approved Check the operation of the throttle lever. It must by Yamaha Motor Co., Ltd. for this model. open smoothly and spring back to the idle position Other tire combinations are not recom- when released.

  • Page 47: Measuring The Tire Pressure

    The tires should be set to the recommend- Maximum tire seating pressure: ed pressure: Front: Recommended tire pressure: 250 kPa (36 psi) (2.5 kgf/cm Front: Rear: 27.5 kPa (4.0 psi) (0.275 kgf/cm 250 kPa (36 psi) (2.5 kgf/cm Rear: Higher pressures and fast inflation may 27.5 kPa (4.0 psi) (0.275 kgf/cm cause a tire to burst.

  • Page 48: Tire Wear Limit

    Recommended pressure: Front 27.5 kPa (4.0 psi) (0.275 kgf/cm Rear 27.5 kPa (4.0 psi) (0.275 kgf/cm Minimum: Front 24.5 kPa (3.5 psi) (0.245 kgf/cm Rear 24.5 kPa (3.5 psi) (0.245 kgf/cm 1. Low-pressure tire gauge Maximum: Front Set the tire pressure when the tires are cold. Set 30.5 kPa (4.4 psi) (0.305 kgf/cm the tire pressures to the following specifications: Rear...

  • Page 49: Chassis Fasteners

    1. Tire wear limit EBU19840 Chassis fasteners Make sure that all nuts, bolts and screws are prop- erly tightened. EBU19850 Instruments, lights and switches Check that all instruments, lights and switches are working properly. Correct if necessary.

  • Page 50: Operation

    See the “Engine break-in” section on page 6-5 a control or function you do not understand, prior to operating the engine for the first time. ask your Yamaha dealer. 1. Set the parking brake. 2. Turn the main switch to “ON” and the engine stop switch to “RUN”.

  • Page 51: Operating The Reverse Knob And Driving In Reverse

    For maximum engine life, always warm the en- indicator light should come on, if it does not gine up before starting off. Never accelerate come on, have a Yamaha dealer check the hard when the engine is cold! electrical circuit.

  • Page 52: Shifting

    If the indicator light does not come on, closed position, apply the clutch, and then repeat- have a Yamaha dealer check the electrical circuit. edly depress the shift pedal until it stops. 4. Check behind you for people or obstacles, When it stops, it will be in first gear.
  • Page 53 time, release the clutch lever slowly. 5. Once the ATV has attained adequate speed, release the throttle, and at the same time, quickly pull in the clutch lever. 6. Shift the transmission into second gear. (Make sure not to shift the transmission into neutral) 7.

  • Page 54: Engine Break-In

    tle and apply the brakes smoothly and evenly. As ning. Inadequate lubrication may damage you slow down, shift to a lower gear. Be sure that the transmission. the engine has sufficiently slowed before engaging Always use the clutch when changing gears. a lower gear.

  • Page 55: Parking

    The ATV can now be operated normally. ECB00220 CAUTION: If any engine trouble should occur during the engine break-in period, immediately have a Yamaha dealer check the ATV. 1. Locked position EBU26760 Parking When parking the ATV, stop the engine, shift into...

  • Page 56: Parking On A Slope

    EBU20870 4. With the front and rear brakes applied, pull the Parking on a slope clutch lever, shift into first gear, and then re- EWB00800 lease the clutch lever, brake lever and brake WARNING pedal. POTENTIAL HAZARD NOTE: Parking on a hill or other incline. Make sure that the neutral indicator light goes off.
  • Page 57 However, judgment as the stability and handling of an ATV it is not possible for Yamaha to test all non- can be changed. When adding accessories, keep Yamaha accessories, nor control over their qual- the following points in mind: ity or suitability.
  • Page 58 Make sure the load does not interfere with con- HOW TO AVOID THE HAZARD trols or your ability to see where you are going. Never exceed the stated load capacity for Ride more slowly than you would without a load. this ATV.

  • Page 59: Riding Your Atv

    EBU21131 RIDING YOUR ATV...

  • Page 60: Getting To Know Your Atv

    EWB00010 RIDE WITH CARE AND GOOD JUDGEMENT WARNING Get training if you are inexperienced. Indicates a potential hazard that could result in Beginners should get training from a certified in- serious injury or death. structor. Become familiar with this ATV at slow speeds first, EBU21591 even if you are an experienced operator.
  • Page 61 A child under 16 should never operate an should complete the certified training course ATV with engine size greater than 90 cc. offered by Yamaha. They should then regu- larly practice the skills learned in the course and the operating techniques described in this Owner’s Manual.
  • Page 62 This ATV is designed to carry operator only – passengers prohibited. EWB00910 WARNING POTENTIAL HAZARD Carrying a passenger on this ATV. WHAT CAN HAPPEN Greatly reduces your ability to balance and control this ATV. Could cause an accident, resulting in harm to you and/or your passen- ger.
  • Page 63 WHAT CAN HAPPEN Operating without an approved motorcycle helmet increases your chances of a severe head injury or death in the event of an acci- dent. Operating without eye protection can result in an accident and increases your chances of a severe injury in the event of an accident.
  • Page 64 Pre-operation checks Always perform the pre-operation checks listed on page 5-1 before riding for proper care of the ATV and to ensure safety. EWB00940 WARNING POTENTIAL HAZARD Failure to inspect the ATV before operating. Failure to properly maintain the ATV. WHAT CAN HAPPEN Increases the possibility of an accident or EWB00930...
  • Page 65 WHAT CAN HAPPEN HOW TO AVOID THE HAZARD Use of improper tires on this ATV, or opera- Always go at a speed that is proper for the tion of this ATV with improper or uneven tire terrain, visibility and operating conditions, pressure, may cause loss of control, increas- and your experience.
  • Page 66 MAXIMUM LOADING LIMIT ATV loading limit (total weight of cargo, rider, accessories, and tongue): 100.0 kg (220 lb) EWB00970 WARNING POTENTIAL HAZARD Overloading this ATV or carrying or towing cargo improperly. 1. Locknut WHAT CAN HAPPEN 2. Adjusting screw Could cause changes in ATV handling which could lead to an accident.
  • Page 67 During operation WHAT CAN HAPPEN Always keep your feet on the footboards during op- Removing even one hand or foot can reduce eration, otherwise they may contact the rear your ability to control the ATV or could cause wheels. you to lose your balance and fall off of the ATV.
  • Page 68 Never modify this ATV through improper in- stallation or use of accessories. All parts and accessories added to this ATV should be genuine Yamaha or equivalent components designed for use on this ATV and should be installed and used according to instructions.

  • Page 69: Be Careful Where You Ride

    EWB01020 HOW TO AVOID THE HAZARD WARNING Do not operate, idle, or park the ATV in dry POTENTIAL HAZARD grass or other dry ground cover. Operating this ATV on paved surfaces. Keep the engine area free of dry grass, WHAT CAN HAPPEN brush, or other combustible material.
  • Page 70 HOW TO AVOID THE HAZARD Never operate this ATV on any public street, road or highway, even a dirt or gravel one. In many states it is illegal to operate ATVs on public streets, roads and highways. Do not ride on any public road, street, or highway. Riding on public roads can result in collisions with other vehicles.
  • Page 71 EWB01040 WARNING POTENTIAL HAZARD Failure to use extra care when operating this ATV on unfamiliar terrain. WHAT CAN HAPPEN You can come upon hidden rocks, bumps, or holes, without enough time to react. Could result in the ATV overturning or going out of control.
  • Page 72 EWB01050 WARNING POTENTIAL HAZARD Failure to use extra care when operating on excessively rough, slippery or loose terrain. WHAT CAN HAPPEN Could cause loss of traction or ATV control, which could result in an accident, including an overturn. HOW TO AVOID THE HAZARD Do not operate on excessively rough, slip- pery or loose terrain until you have learned and practiced the skills necessary to control...
  • Page 73 mission. EWB01060 Select a large, flat area off-road to become familiar WARNING with your ATV. Make sure that this area is free of POTENTIAL HAZARD obstacles and other riders. You should practice Operating in areas where you might not be control of the throttle, brakes, shifting procedures, seen by other off-road vehicles.
  • Page 74 do not allow skin or clothing to come in contact with WHAT CAN HAPPEN these components. The ATV could wheelie. This would increase With the engine idling, pull the clutch lever to dis- the chance of an accident, including over- engage the clutch and shift into 1st gear, and then turn.

  • Page 75: Turning Your Atv

    WHAT CAN HAPPEN HOW TO AVOID THE HAZARD The wheels could stop rotating. This could Always follow proper procedures for turning cause loss of control, an accident and injury. as described in this Owner’s Manual. Prac- It could also cause engine or drive train dam- tice turning at low speeds before attempting age.

  • Page 76: Climbing Uphill

    be able to perform it at higher speeds or in tighter curves. Improper riding procedures such as abrupt throttle changes, excessive braking, incorrect body move- ments, or too much speed for the sharpness of the turn may cause the ATV to tip. If the ATV begins to tip over to the outside while negotiating a turn, lean more to the inside.
  • Page 77 WHAT CAN HAPPEN HOW TO AVOID THE HAZARD The ATV can overturn more easily on ex- Always follow proper procedures for climb- tremely steep hills than on level surfaces or ing hills as described in this Owner’s Manual. small hills. Always check the terrain carefully before you HOW TO AVOID THE HAZARD start up any hill.
  • Page 78 WHAT CAN HAPPEN Could cause loss of control or cause the ATV to overturn. HOW TO AVOID THE HAZARD Never attempt to turn the ATV around on any hill until you have mastered the turning tech- nique as described in the Owner’s Manual on level ground.
  • Page 79 EWB01251 WARNING POTENTIAL HAZARD Stalling, rolling backwards or improperly dis- mounting while climbing a hill. WHAT CAN HAPPEN Could result in the ATV overturning. HOW TO AVOID THE HAZARD Use the proper gear and maintain a steady speed when climbing a hill. If you lose all forward speed: Keep weight uphill.

  • Page 80: Riding Downhill

    braking may also cause a loss of traction. Whenever possible, ride your ATV straight down- hill. Avoid sharp angles which could allow the ATV to tip or roll over. Carefully choose your path and ride no faster than you will be able to react to ob- stacles which may appear.

  • Page 81: Crossing A Slope

    HOW TO AVOID THE HAZARD Always follow proper procedures for going down hills as described in this Owner’s Man- ual. Note: a special technique is required when braking as you go down a hill. Always check the terrain carefully before you start down any hill.

  • Page 82: Crossing Through Shallow Water

    steering when riding on loose surfaces by pointing When crossing the side of a hill: the front wheels slightly uphill. When riding on Always follow proper procedures as de- slopes, be sure not to make sharp turns either up scribed in the Owner’s Manual. or down hill.
  • Page 83 low water of up to a maximum of 35 cm (14 in) in depth. Before entering the water, choose your path carefully. Enter where there is no sharp drop off, and avoid rocks or other obstacles which may be slippery or upset the ATV. Drive slowly and care- fully.

  • Page 84: Riding Over Rough Terrain

    1. Air filter case check hose RIDING OVER ROUGH TERRAIN ECB00240 Riding over rough terrain should be done with cau- CAUTION: tion. Look out for obstacles which could cause damage to the ATV or could lead to an upset or ac- After riding your ATV in water, be sure to drain cident.

  • Page 85: Sliding And Skidding

    WHAT CAN HAPPEN Could cause loss of control or a collision. Could cause the ATV to overturn. HOW TO AVOID THE HAZARD Before operating in a new area, check for ob- stacles. Never attempt to ride over large obstacles, such as large rocks or fallen trees. When you go over obstacles, always follow proper pro- cedures as described in the Owner’s Manual.

  • Page 86: What To Do If

    HOW TO AVOID THE HAZARD Learn to safely control skidding or sliding by practicing at low speeds and on level, smooth terrain. On extremely slippery surfaces, such as ice, go slowly and be very cautious in order to re- duce the chance of skidding or sliding out of control.
  • Page 87 Steer in the direction of the slide if you have the you come out of the water. Do not continue to room. Applying the brakes or accelerating is not ride your ATV until you have regained adequate recommended until you have corrected the braking ability.

  • Page 88: Periodic Maintenance And Minor Repair

    Safety is an obligation of the owner. Periodic in- nance unless otherwise specified. Have a spection, adjustment and lubrication will keep your Yamaha dealer perform the service if you are ATV in the safest and best operating condition not familiar with maintenance work.
  • Page 89 If you have questions, consult an authorized additional tools such as a torque wrench may be Yamaha ATV dealer. necessary to perform certain maintenance work correctly. NOTE: If you do not have the tools or experience required for a particular job, have a Yamaha dealer perform...

  • Page 90: 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 91: General Maintenance And Lubrication Chart

    EBU21863 General maintenance and lubrication chart INITIAL EVERY month Whichev- CHECK OR MAINTENANCE ITEM er comes 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) √...
  • Page 92 INITIAL EVERY month Whichev- CHECK OR MAINTENANCE er comes ITEM 1300 2500 2500 5000 first (mi) (200) (800) (1600) (1600) (3200) hours Upper and lower √ √ √ 10 * Lubricate with lithium-soap-based grease. arm pivots Check chain slack and adjust if necessary. Check rear wheel alignment and correct if necess- √...
  • Page 93 INITIAL EVERY month Whichev- CHECK OR MAINTENANCE er comes ITEM 1300 2500 2500 5000 first (mi) (200) (800) (1600) (1600) (3200) hours Moving parts and √ √ √ √ 20 * Lubricate. cables Check operation and correct if necessary. Throttle lever hous- Check throttle cable free play and adjust if neces- √...

  • Page 94: Removing And Installing The Panel

    EWB00010 EBU23100 Panel A WARNING To remove the panel Indicates a potential hazard that could result in Remove the bolts, and then take the panel off. serious injury or death. EBU23080 Removing and installing the panel The panel shown needs to be removed to perform some of the maintenance jobs described in this chapter.

  • Page 95: Checking The Spark Plug

    Do not spark plug wrench included in the owner’s tool attempt to diagnose such problems yourself. In- kit. stead, have a Yamaha dealer check the ATV. 2. Check the spark plug for electrode erosion and excessive carbon or other deposits, and...

  • Page 96: Engine Oil And Oil Filter Element

    replace it if necessary. and its mating surface, and then wipe off any grime from the spark plug threads. Specified spark plug: 3. Install the spark plug with the spark plug NGK/CR8E wrench, and then tighten it to the specified torque.
  • Page 97 To check the engine oil level 1. Place the ATV on a level surface. 2. Start the engine, warm it up until the engine oil has reached a normal temperature of 60 °C (141 °F), let it continue to idle for ten seconds or more, and then turn the engine off.
  • Page 98 NOTE: When adding oil, be careful not to overfill the en- gine oil tank; the oil level rises faster starting from the half-level-portion on the dipstick. 6. Insert the dipstick into the engine oil tank filler hole, and then tighten the engine oil tank filler cap.
  • Page 99 5. Remove the engine oil tank filler cap and the engine oil tank drain bolt. 1. Oil filter element cover 2. Bolt 1. Engine oil tank drain bolt 8. Check the O-rings for damage, and replace them if necessary. 6. Check the washers for damage, and replace if necessary.
  • Page 100 11. Install the crankcase engine oil drain bolt and the engine oil tank drain bolt, and then tighten them to the specified torques. Tightening torques: Crankcase engine oil drain bolt: 23 Nm (2.3 m·kgf, 16.6 ft·lbf) Engine oil tank drain bolt: 19 Nm (1.9 m·kgf, 13.7 ft·lbf) 12.

  • Page 101: Coolant

    16. Install and tighten the engine oil tank filler cap. el and correct it if necessary. Recommended oil: EBU23470 Coolant See page 10-1. The coolant level should be checked before each Oil quantity: ride. In addition, the coolant must be changed at Without oil filter element replacement: the intervals specified in the periodic maintenance 1.75 L (1.85 US qt) (1.54 Imp.qt)
  • Page 102 If water has been added to the coolant, have a Yamaha dealer check the antifreeze con- tent of the coolant as soon as possible, oth- erwise the effectiveness of the coolant will be reduced.
  • Page 103 4. Remove the radiator cap. WHAT CAN HAPPEN You could be burned by hot fluid and steam blown out under pressure. HOW TO AVOID THE HAZARD Wait for the engine to cool before removing the radiator cap. Always place a thick rag over the cap.
  • Page 104 voir to the maximum level mark, and then in- stall the reservoir cap. 11. Pour the recommended coolant into the radia- tor until it is full. Antifreeze/water mixture ratio: Recommended antifreeze: High-quality ethylene glycol antifreeze con- taining corrosion inhibitors for aluminum en- gines Coolant quantity: 1.

  • Page 105: Cleaning The Air Filter Element

    14. Start the engine, and then check for coolant leakage. NOTE: If any leakage is found, have a Yamaha dealer check the cooling system. 15. Install the panel. 1. Air filter case check hose EBU26790 1.
  • Page 106 1. Wing bolt 1. Air filter case cover 2. Air filter element 2. Air filter case holder 5. Remove the wing bolt from the air filter ele- 3. Loosen the wing bolt. ment. 4. Remove the air filter element together with the 6.
  • Page 107 9. Check the sponge material and replace it if damaged. 1. Sponge material 10. Apply Yamaha foam air filter oil or other qual- 2. Air filter element frame ity foam air filter oil to the sponge material. 7. Wash the sponge material gently but thor- NOTE: oughly in solvent.

  • Page 108: Cleaning The Spark Arrester

    15. Install the seat. EBU23872 Cleaning the spark arrester NOTE: Select a well-ventilated area free of combustible The air filter element should be cleaned every 20– materials and make sure the exhaust and muffler 40 hours. It should be cleaned and lubricated more are cool.
  • Page 109 1. Tailpipe 1. Purging bolt 2. Spark arrester 7. Start the engine and rev it up approximately 4. Insert the tailpipe into the muffler and align the twenty times while momentarily creating ex- bolt holes. haust system back pressure by blocking the 5.

  • Page 110: Adjusting The Engine Idling Speed

    EWB01930 tion chart. WARNING NOTE: POTENTIAL HAZARD A diagnostic tachometer is needed to make this Improperly purging the exhaust system. adjustment. Hot exhaust system. WHAT CAN HAPPEN 1. Start the engine and warm it up. Could injure the eyes. NOTE: Could cause burns.

  • Page 111: Adjusting The Throttle Cable Free Play

    1500–1700 r/min bolt in direction (b). NOTE: If the specified idling speed cannot be obtained as described above, have a Yamaha dealer make the adjustment. EBU24043 Adjusting the throttle cable free play The throttle cable free play should be checked...

  • Page 112: Valve Clearance

    The valve clearance changes with use, resulting in improper air-fuel mixture and/or engine noise. To prevent this from occurring, the valve clearance must be adjusted by a Yamaha dealer at the inter- 1. Wear indicator groove vals specified in the periodic maintenance and lu- brication chart.

  • Page 113: Checking The Brake Fluid Level

    Front brake 1. Minimum level mark 1. Wear indicator groove Rear brake EBU26821 Checking the brake fluid level Insufficient brake fluid may allow air to enter the brake system, possibly causing it to become inef- fective. Before riding, check that the brake fluid is above the minimum level mark and replenish if neces- sary.
  • Page 114 NOTE: To check the rear brake fluid level, remove the seat. (See page 4-11.) If the rear brake fluid level is low, replenish as fol- lows. 1. Remove the cowling bolt and quick fastener. 1. Cowling 2. Brake fluid reservoir cap 3.

  • Page 115: Changing The Brake Fluid

    (zero in) as shown. If the free result in vapor lock. play is incorrect, have a Yamaha dealer check the Brake fluid may deteriorate painted surfaces or brake system.

  • Page 116: Checking The Brake Pedal Position

    EWB02010 shown. If the brake pedal is not positioned as spec- WARNING ified, have a Yamaha dealer adjust it. POTENTIAL HAZARD Operating with improperly serviced or ad- justed brakes. WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident.

  • Page 117: Adjusting The Parking Brake Free Play

    Make sure the brakes are not spongy. All air must be bled from the brake system. Replacement of brake components requires professional knowledge. These procedures should be performed by a Yamaha dealer. 1. Cable length “A” EBU26840 Adjusting the parking brake free play 1.

  • Page 118: Brake Light Switches

    Yamaha dealer. The brake light switch for the brake pedal can be adjusted as follows, but the other brake light 4. Tighten the locknut on the brake cable. switches should be adjusted by a Yamaha dealer. EWB02030 WARNING NOTE:...

  • Page 119: Adjusting The Clutch Lever Free Play

    switch in place. To make the brake light come on earlier, turn the adjusting nut in direction (a). To make the brake light come on later, turn the adjust- ing nut in direction (b). 1. Locknut 2. Clutch lever free play adjusting bolt 3.

  • Page 120: Drive Chain Slack

    Drive chain slack: clutch lever. 25.0–35.0 mm (0.98–1.38 in) NOTE: If the specified free play cannot be obtained as de- scribed above or if the clutch does not operate cor- rectly, have a Yamaha dealer check the internal clutch mechanism. 8-33...
  • Page 121 To adjust the drive chain slack NOTE: 1. Loosen the rear axle pinch bolts. A rod can be obtained at a Yamaha dealer to make 2. Insert a rod of a diameter of 8 mm and a this adjustment. length of 10 cm into one of the holes in the 3.

  • Page 122: Lubricating The Drive Chain

    ECB00541 EBU24880 Lubricating the drive chain CAUTION: The drive chain must be cleaned and lubricated at Improper drive chain slack will overload the en- the intervals specified in the periodic maintenance gine as well as other vital parts of the ATV and and lubrication chart, otherwise it will quickly wear can lead to drive chain slippage or breakage.

  • Page 123: Checking And Lubricating The Cables

    If a cable is damaged or does not move Recommended lubricant: smoothly, have a Yamaha dealer check or replace Lithium-soap-based grease (all-purpose grease) Recommended lubricant:...

  • Page 124: Checking The Wheel Bearings

    If there is play in a wheel hub or if a wheel does not turn smoothly, have a Yamaha dealer check the wheel bearings. EBU24992 Lubricating the swingarm pivots...

  • Page 125: Lubricating The Upper And Lower Arm Pivots

    EBU25030 Lubricating the upper and lower arm pivots The upper and lower arm pivots must be lubricated at the intervals specified in the periodic mainte- nance and lubrication chart. Lubricate the pivoting points using a grease gun. Recommended lubricant: Lithium-soap-based grease Left side 1.

  • Page 126: Battery

    Right side EWB02140 WARNING POTENTIAL HAZARD Failure to handle batteries or battery electro- lyte carefully. WHAT CAN HAPPEN You could be poisoned. You could be severe- ly burned by the sulfuric acid in battery elec- trolyte. Batteries produce explosive gases. HOW TO AVOID THE HAZARD Avoid contact with skin, eyes or clothing.
  • Page 127 To charge the battery Have a Yamaha dealer charge the battery as soon as possible if it seems to have discharged. Keep in mind that the battery tends to discharge more quickly if the ATV is equipped with optional electri- cal accessories.

  • Page 128: Replacing A Fuse

    EBU25313 Replacing a fuse 1. Signaling system fuse 2. Headlight fuse 1. Main fuse 3. Ignition fuse 2. Spare main fuse 4. Fuel injection system fuse 5. Spare fuse The main fuse and the fuse box are located under the seat. (See page 4-11.) If a fuse is blown, replace it as follows.

  • Page 129: Replacing A Headlight Bulb

    3. Turn the key to “ON” and turn on the electrical Main fuse: circuits to check if the devices operate. 20.0 A 4. If the fuse immediately blows again, have a Headlight fuse: Yamaha dealer check the electrical system. 15.0 A Ignition fuse: EBU25430 10.0 A Replacing a headlight bulb Signaling system fuse: If a headlight bulb burns out, replace it as follows.
  • Page 130 1. Headlight assembly 1. Headlight bulb holder cover 2. Bolt 2. Headlight coupler 2. Disconnect the headlight coupler. 4. Remove the headlight bulb holder by pushing 3. Remove the headlight bulb holder cover. it in and turning it counterclockwise, and then remove the defective bulb.
  • Page 131 1. Headlight bulb holder 1. Do not touch the glass part of the bulb. EWB02180 ECB00650 WARNING CAUTION: POTENTIAL HAZARD Do not touch the glass part of the headlight A headlight bulb is hot when it is on and im- bulb to keep it free from oil, otherwise the mediately after it is turned off.

  • Page 132: Adjusting A Headlight Beam

    Adjusting a headlight beam Yamaha dealer check it. ECB00690 CAUTION: EBU25650 Removing a wheel It is advisable to have a Yamaha dealer make 1. Loosen the wheel nuts. this adjustment. Front To raise a headlight beam, turn the adjusting bolt in direction (a).

  • Page 133: Installing A Wheel

    Rear Front 1. Arrow mark 1. Nut 2. Elevate the ATV and place a suitable stand under the frame. 3. Remove the nuts from the wheel. 4. Remove the wheel. EBU27480 Installing a wheel 1. Install the wheel and the nuts. NOTE: When installing the wheel, make sure its arrow mark...

  • Page 134: Troubleshooting

    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 135 HOW TO AVOID THE HAZARD Do not smoke when checking the fuel sys- tem. Make sure there are no open flames or sparks in the area, including pilot lights from water heaters or furnaces. 8-48...

  • Page 136: Troubleshooting Charts

    EBU27680 Troubleshooting charts Starting problems or poor engine performance 1. Fuel 2. Compression 3. Ignition 4. Battery 8-49...
  • Page 137 Start the engine. If the engine overheats again, have a The coolant level Yamaha dealer check and repair the cooling system. is OK. NOTE: If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the rec- ommended coolant as soon as possible.

  • Page 138: Cleaning And Storage

    EBU25860 CLEANING AND STORAGE EBU25890 ed from improper high-pressure detergent Cleaning applications such as those available in coin- Frequent, thorough cleaning of your ATV will not operated car washers. only enhance its appearance but will improve its 4. Once most of the dirt has been hosed off, general performance and extend the useful life of wash all surfaces with warm water and mild, many components.

  • Page 139: Storage

    EWB02300 nia) and areas where strong chemicals are WARNING stored. POTENTIAL HAZARD Operation with wet brakes after washing. Long-term WHAT CAN HAPPEN Before storing your ATV for several months: Wet brakes may have reduced stopping abil- 1. Follow all the instructions in the “Cleaning” ity, increasing the chance of an accident.
  • Page 140 plug, and then place the spark plug on the 8-39. cylinder head so that the electrodes are NOTE: grounded. (This will limit sparking during Make any necessary repairs before storing the the next step.) ATV. d. Turn the engine over several times with the starter.

  • Page 141: Specifications

    EBU25960 SPECIFICATIONS EBU25975 Compression ratio: Dimensions: 9.20 :1 Overall length: Starting system: 1845 mm (72.6 in) Electric starter Overall width: Lubrication system: 1170 mm (46.1 in) Dry sump Overall height: Engine oil: 1130 mm (44.5 in) Type: Seat height: YAMALUBE 4, SAE5W30 or SAE10W30 or SAE20W40 815 mm (32.1 in) Wheelbase: 0˚...
  • Page 142 Engine oil quantity: Clutch: Without oil filter element replacement: Clutch type: 1.75 L (1.85 US qt) (1.54 Imp.qt) Wet, multiple-disc With oil filter element replacement: Transmission: 1.85 L (1.96 US qt) (1.63 Imp.qt) Primary reduction system: Cooling system: Spur gear Coolant reservoir capacity (up to the maximum level mark): Primary reduction ratio: 0.25 L (0.26 US qt) (0.22 Imp.qt)
  • Page 143 Caster angle: Rear: 5.0 ° 24.5 kPa (3.5 psi) (0.245 kgf/cm Trail: Maximum: 21.0 mm (0.83 in) Front: Front tire: 30.5 kPa (4.4 psi) (0.305 kgf/cm Rear: Type: 30.5 kPa (4.4 psi) (0.305 kgf/cm Tubeless Front wheel: Size: AT21 x 7-10 Wheel type: Manufacturer/model: Panel wheel...
  • Page 144 Front suspension: Neutral indicator light: Type: Fuel level warning light: Double wishbone Spring/shock absorber type: Reverse indicator light: Coil spring/oil damper Wheel travel: Coolant temperature warning light: 230 mm (9.1 in) Rear suspension: Engine trouble warning light: Type: Swingarm (link suspension) Fuses: Spring/shock absorber type: Main fuse:...

  • Page 145: Consumer Information

    Yamaha dealer or for ref- erence in case the ATV is stolen. KEY IDENTIFICATION NUMBER: VEHICLE IDENTIFICATION NUMBER: 1.

  • Page 146: Model Label

    EBU26050 Model label The model label is affixed at the location in the il- lustration. Record the information on this label in the space provided. This information will be need- ed when ordering spare parts from a Yamaha deal- 11-2...

  • Page 147: Noise Regulation

    EBU26060 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 148: Maintenance Record

    EBU26080 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 149: 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 150 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 151 Yamaha people who handle your warranty – and it 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 152 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 153 EBU26132 11-9...
  • Page 154 INDEX Drive chain, lubricating..........8-35 Drive chain slack ............8-33 Accessories and loading ..........6-7 Air filter element, cleaning..........8-18 Engine break-in .............. 6-5 Engine idling speed............8-23 Battery................8-39 Engine oil ............... 5-4 Brake and clutch levers, checking and lubricating ..8-36 Engine oil and oil filter element ........
  • Page 155 Shift pedal ..............4-8 Shock absorber assemblies, adjusting the front ..4-12 Label locations ..............2-1 Shock absorber assembly, adjusting the rear....4-17 Light switch ..............4-4 Spark arrester, cleaning..........8-21 Spark plug, checking............8-7 Main switch ..............4-1 Specifications............... 10-1 Maintenance and lubrication chart ........8-4 Speed limiter ..............
  • Page 156 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 JAPAN PRINTED ON RECYCLED PAPER 2006.06-3.3x1 !
  • Page 157 8 TAKE THE FREE HANDS-ON TRAINING COURSE OFFERED BY YAMAHA – ASK YOUR DEALER FOR DETAILS OR CALL 1-800-887-2887 If you have any questions about these points, or if you purchased your ATV from an authorized Yamaha dealership and were not informed of the age recommendation for your ATV by the dealership, please fill out the information below and mail this card to yamaha today.
  • Page 158 NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES FIRST CLASS PERMIT NO. 4 CYPRESS, CA POSTAGE WILL BE PAID BY ADDRESSEE YAMAHA MOTOR CORPORATION U.S.A. P.O. BOX 6555 CYPRESS, CALIFORNIA 90630-9989 ATTN: SALES ADMINISTRATION...

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