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Yamaha YFM350R-W, Owner'S Manual

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Yamaha YFM350R-W Owner'S Manual Download Page 87

8-10

8

TIP

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

and excessive carbon or other deposits, and
replace it if necessary.

3. Measure the spark plug gap with a wire thick-

ness gauge and, if necessary, adjust the gap
to specification.

To install the spark plug

1. Clean the surface of the spark plug gasket

and its mating surface, and then wipe off any
grime from the spark plug threads.

2. Install the spark plug with the spark plug

wrench, and then tighten it to the specified
torque.

Specified spark plug:

NGK/DR8EA

1. Spark plug gap

Spark plug gap:

0.6–0.7 mm (0.024–0.028 in)

U10P70E0.book  Page 10  Thursday, July 21, 2011  8:51 AM

Summary of Contents for YFM350R-W

Page 1: ...10P F8199 70 YFM35R W OWNER S MANUAL READ THIS MANUAL CAREFULLY It contains important safety information DIC183 ...

Page 2: ...EBU28980 Read this manual carefully before operating this vehicle This manual should stay with this ve hicle if it is sold U10P70E0 book Page 1 Thursday July 21 2011 8 51 AM ...

Page 3: ...tant safety information It provides information about special tech niques and skills necessary to ride the ATV It also includes basic maintenance and inspection proce dures If you have any questions regarding the operation or maintenance of your ATV please consult a Yamaha dealer AN IMPORTANT SAFETY MESSAGE Read this manual completely before operating your ATV Make sure you understand all instruct...

Page 4: ...safety alert symbol It is used to alert you to potential per sonal injury hazards Obey all safety messages that follow this sym bol to avoid possible injury or death A WARNING indicates a hazardous situation which if not avoided could result in death or serious injury A NOTICE indicates special precautions that must be taken to avoid damage to the vehicle or other property A TIP provides key infor...

Page 5: ... paved road or motorway Please check your local riding laws and regulations before operating this ATV EBUM0010 YFM35R W OWNER S MANUAL 2011 by MBK INDUSTRIE 1st edition July 2011 All rights reserved Any reprinting or unauthorized use without the written permission of MBK INDUSTRIE is expressly prohibited Printed in France U10P70E0 book Page 1 Thursday July 21 2011 8 51 AM ...

Page 6: ...rake pedal 4 6 Parking brake lever 4 7 Shift pedal 4 8 Drive select lever 4 8 Fuel tank cap 4 9 Fuel 4 9 Fuel cock 4 11 Starter choke 4 12 Steering lock 4 13 Seat 4 14 Adjusting the front shock absorber assemblies 4 14 Adjusting the rear shock absorber assembly 4 16 PRE OPERATION CHECKS 5 1 Fuel 5 3 Engine oil 5 3 Front and rear brakes 5 3 Throttle lever 5 3 Drive chain 5 4 Tires 5 4 Chassis faste...

Page 7: ...maintenance and lubrication chart 8 5 Checking the spark plug 8 9 Engine oil and oil filter element 8 11 Cleaning the air filter element 8 15 Cleaning the spark arrester 8 18 Adjusting the carburetor 8 20 Adjusting the engine idling speed 8 20 Adjusting the throttle lever free play 8 21 Valve clearance 8 22 Brakes 8 22 Checking the front and rear brake pads 8 22 Checking the brake fluid level 8 23...

Page 8: ...7 Battery 8 38 Replacing a fuse 8 40 Headlight bulb 8 41 Headlight beam 8 41 Replacing the tail brake light bulb 8 41 Replacing a turn signal light bulb 8 42 Replacing the license plate light bulb 8 42 Auxiliary light bulb 8 44 Removing a wheel 8 44 Installing a wheel 8 44 Troubleshooting 8 45 Troubleshooting chart 8 46 CLEANING AND STORAGE 9 1 Cleaning 9 1 Storage 9 2 SPECIFICATIONS 10 1 CONSUMER...

Page 9: ... 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 1 2 6 5 4 3 U10P70E0 book Page 1 Thursday July 21 2011 8 51 AM ...

Page 10: ...1 2 1 4AA 22259 40 5YT 2816M M0 25 0 kPa 0 25 kgf cm 3 6 psi 25 0 kPa 0 25 kgf cm 3 6 psi 1AS 2816P 00 1 2 3 U10P70E0 book Page 2 Thursday July 21 2011 8 51 AM ...

Page 11: ...1 3 1 8AC 2817L 00 YAMAHAMOTORCO LTD 2500SHINGAI IWATA JAPAN 2011 4D3 2816L 20 43P 2816R 01 4 5 6 U10P70E0 book Page 3 Thursday July 21 2011 8 51 AM ...

Page 12: ...children under age 10 to operate this ATV Operation of this ATV by children under the age of 10 increases the risk of severe injury or death Adult supervision required for children under age 16 NEVER permit children under age 12 to operate this ATV Operation of this ATV by children under the age of 12 increases the risk of severe injury or death Adult supervision required for children under age 16...

Page 13: ...y or death Turning the ATV in 4WD LOCK DIFF LOCK takes more effort Operate at a slow speed and allow extra time and distance for maneuvers to avoid loss of control This pictogram shows the loading limits and or maximum load capacity for this ATV Follow all load limits and other loading guidelines in this manual Load may include the driver passenger human protective gear accessories goods luggage a...

Page 14: ...ading can cause loss of control Loss of control can result in severe injury or death This pictogram shows trailer Hitch Tongue weight limit Weight on the trailer tongue Overloading can cause loss of control Loss of control can result in severe injury or death 1 2 3 Model Name Max Power Mass In Running Order 1 Year of construction U10P70E0 book Page 6 Thursday July 21 2011 8 51 AM ...

Page 15: ...hild if he or she does not have the abilities to operate it safely Never carry a passenger on an ATV Always avoid operating an ATV on any paved surfaces including sidewalks driveways park ing lots and paved streets Never operate an ATV on any paved street paved road or motorway Watch carefully for other vehicles when operat ing on unpaved public streets or roads Make sure you know your country s l...

Page 16: ... described in this manual Check the ter rain carefully before you start up any hill Never climb hills with excessively slippery or loose sur faces Shift your weight forward Never open the throttle suddenly or make sudden gear changes Never go over the top of a hill at high speed Always follow proper procedures for going down hills and for braking on hills as described in this manual Check the terr...

Page 17: ...topping ability Test your brakes after leaving water If necessary apply them several times to let friction dry out the linings Always be sure there are no obstacles or people behind you when you operate in reverse When it is safe to proceed in reverse go slowly Always use the size and type of tires specified in this manual Always maintain proper tire pressure as de scribed in this manual Never mod...

Page 18: ...e exhaust with fans or open windows and doors carbon monoxide can rapidly reach dangerous levels Do not run engine in poorly ventilated or par tially enclosed areas such as barns garages or carports Do not run engine outdoors where engine exhaust can be drawn into a building through openings such as windows and doors WARNING EWB02591 When transporting the ATV in another vehicle be sure it is kept ...

Page 19: ...tery 7 Owner s tool kit 8 Tail brake light 9 Oil filter element 10 Shift pedal 1 2 3 4 5 6 7 8 9 10 1 Spark arrester 2 Fuse 3 Rear shock absorber assembly spring preload adjusting nut 4 Drive select lever 5 Fuel tank cap 6 Spark plug 7 Engine oil filler cap 8 Brake pedal 9 Rear brake light switch 10 Rear brake fluid reservoir 1 2 3 4 5 6 7 8 9 10 U10P70E0 book Page 1 Thursday July 21 2011 8 51 AM ...

Page 20: ...m the figures shown in this manual 1 Clutch lever 2 Parking brake lever 3 Speedometer unit 4 Front brake fluid reservoir 5 Brake lever 6 Throttle lever 7 Engine stop switch 8 Main switch 9 Starter choke 10 Handlebar switches 5 4 3 2 1 8 9 10 7 6 U10P70E0 book Page 2 Thursday July 21 2011 8 51 AM ...

Page 21: ... systems are supplied with power The auxiliary light taillight and license plate light come on and the engine can be started The key cannot be removed TIP The headlight comes on when the light switch is set to or OFF All electrical systems are off The key can be re moved 1 Main switch U10P70E0 book Page 1 Thursday July 21 2011 8 51 AM ...

Page 22: ...his indicator light comes on when the transmis sion is in the reverse position EBU27980 High beam indicator light This indicator light comes on when the high beam of the headlight is switched on EBU28051 Speedometer This speedometer is equipped with an odometer The odometer shows the total distance traveled 1 High beam indicator light 2 Turn signal indicator light 3 Reverse indicator light R 4 Neu...

Page 23: ...ch to stop the engine in an emergency situation The engine will not start or run when this switch is set to EBU18101 Start switch Push this switch to crank the engine with the start er See the starting instructions on page 6 1 prior to starting the engine 1 Light switch 2 Hazard switch 3 Turn signal switch 4 Horn switch 5 Start switch 1 Engine stop switch U10P70E0 book Page 3 Thursday July 21 2011...

Page 24: ...ned to the center position EBU18170 Horn switch Press the switch to sound the horn EBU28001 Hazard switch With the key in the ON position use this switch to turn on the hazard lights simultaneous flashing of all turn signal lights The hazard lights are used in case of an emergen cy or to warn other drivers when your vehicle is stopped where it might be a traffic hazard NOTICE ECB00860 Do not use t...

Page 25: ... screw in direction a To de crease the maximum engine power available and the maximum speed of the ATV turn the adjusting screw in direction b Do not turn the adjusting screw out more than 12 mm 0 47 in or the throttle cable could be dam aged Always make sure the throttle lever free play is adjusted to 2 0 4 0 mm 0 08 0 16 in See page 8 21 WARNING Improper ad justment of the speed limiter and thro...

Page 26: ...hould be pulled rapidly and re leased slowly for smooth clutch operation See page 6 1 for a description of the ignition circuit cut off system EBU18411 Brake lever The brake lever is located at the right handlebar grip To apply the front brake pull the brake lever toward the handlebar grip EBU28070 Brake pedal The brake pedal is located on the right side of the ATV This model is equipped with a un...

Page 27: ...eously EBU18520 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 Brake pedal 1 Parking brake lever locked position 1 Parking brake lever unlocked position U10P70E0 book Page 7 Thursday July 21 ...

Page 28: ...ng performance which could cause an accident You could also wear out the brakes prematurely EBU18530 Shift pedal This ATV is equipped with a constant mesh 6 speed transmission The shift pedal is located on the left side of the engine and is used in combina tion with the clutch when shifting EBU18571 Drive select lever The drive select lever is used for driving the ATV either forward or in reverse ...

Page 29: ...and gasoline vapors are extremely flammable To avoid fires and explosions and to reduce the risk of injury when refueling fol low these instructions 1 Before refueling turn off the engine and be sure that no one is sitting on the vehicle Nev er refuel while smoking or while in the vicinity 1 Drive select lever 1 Fuel tank cap U10P70E0 book Page 9 Thursday July 21 2011 8 51 AM ...

Page 30: ... or plastic parts ECB00981 4 Turn the fuel tank cap fully clockwise to make sure it is securely closed WARNING EWB02531 Gasoline is poisonous and can cause injury or death Handle gasoline with care Never siphon gasoline by mouth If you should swallow some gasoline or inhale a lot of gasoline vapor or get some gasoline in your eyes see your doctor immediately If gasoline spills on your skin wash wi...

Page 31: ...c curs use a gasoline of a different brand Use of un leaded fuel will extend spark plug life and reduce maintenance costs EBU18820 Fuel cock The fuel cock supplies fuel from the tank to the car buretor while also filtering it The fuel cock lever positions are explained as fol lows and shown in the illustrations OFF With the fuel cock lever in this position fuel will not flow Always turn the fuel c...

Page 32: ...rn the fuel cock lever to this position if you run out of fuel while riding When this occurs refuel as soon as possible and be sure to turn the fuel cock lever back to ON EBU18850 Starter choke Starting a cold engine requires a richer air fuel mix ture which is supplied by the starter choke Move the starter choke in direction a to turn on the starter choke 1 Arrow mark pointing to ON 1 Arrow mark ...

Page 33: ...urn the handlebar all the way to either side 2 Open the steering lock cap and then insert the steering lock key 3 Turn the key 1 8 turn counterclockwise push it in and then turn the key 1 8 turn clockwise 4 Check that the steering is locked remove the key and then close the steering lock cap 1 Starter choke 1 Steering lock cap 2 Steering lock U10P70E0 book Page 13 Thursday July 21 2011 8 51 AM ...

Page 34: ...er upward and pull up the seat at the rear To install the seat Insert the projections on the front of the seat into the seat holders and push down on the seat at the rear Make sure that the seat is securely fitted EBU18993 Adjusting the front shock absorber as semblies The spring preload can be adjusted to suit the rid er s weight and the riding conditions 1 Seat lock lever 1 Projection 2 Seat hol...

Page 35: ...load adjusting ring in direction a to increase the spring preload and thereby harden the suspension and in direction b to de crease the spring preload and thereby soften the suspension Align the appropriate notch in the adjusting ring with the position indicator on the shock absorber TIP A special wrench can be obtained at a Yamaha dealer to make this adjustment 1 Spring preload adjusting ring 2 P...

Page 36: ...s Adjust the spring preload as follows 1 Loosen the locknut 2 Turn the spring preload adjusting nut in direc tion a to increase the spring preload and thereby harden the suspension and in direc tion b to decrease the spring preload and thereby soften the suspension 1 Special wrench Spring preload setting Minimum soft 1 Standard 3 Maximum hard 5 1 Locknut 2 Spring preload adjusting nut U10P70E0 boo...

Page 37: ...g preload With each complete turn of the adjusting nut distance A is changed by 1 5 mm 0 06 in 3 Tighten the locknut to the specified torque NOTICE Always tighten the locknut against the adjusting nut and then tighten it to the specified torque ECB00081 1 Special wrench Spring preload setting Minimum soft Distance A 233 5 mm 9 19 in Standard Distance A 228 5 mm 9 00 in Maximum hard Distance A 218 ...

Page 38: ...ch could cause an accident Do not tamper with or attempt to open the cylinder assembly Do not subject the shock absorber assembly to an open flame or other high heat Do not deform or damage the cylinder in any way Do not dispose of a damaged or worn out shock absorber assembly yourself Take the shock absorber assembly to a Yamaha deal er for any service Tightening torque Locknut 42 Nm 4 2 m kgf 30...

Page 39: ... a Yamaha dealer Before using this vehicle check the following points ITEM ROUTINE PAGE Fuel Check fuel level in fuel tank and add recommended fuel if neces sary Check fuel line for leakage Correct if necessary 4 9 5 3 Engine oil Check oil level in engine and add recommended oil to specified lev el if necessary Check ATV for oil leakage Correct if necessary 5 3 8 11 Front brake Check operation If ...

Page 40: ...ontrol cables Make sure that operation is smooth Lubricate if necessary 8 32 Drive chain Check chain slack and adjust if necessary Check chain condition Lubricate if necessary 5 4 8 29 8 32 Wheels and tires Check wheel condition and replace if damaged Check tire condition and tread depth Replace if necessary Check air pressure Correct if necessary 5 4 Brake and shift pedals Make sure that operatio...

Page 41: ...ed If not have a Yamaha dealer check the brake system Brake fluid level Check the brake fluid level Add fluid if necessary See page 8 23 Brake fluid leakage Check to see if any brake fluid is leaking out of the pipe joints or brake fluid reservoirs Apply the brakes firmly for one minute If there is any leak age have a Yamaha dealer check the brake sys tem Brake operation Test the brakes at slow sp...

Page 42: ... of control or rollover Tire pressure below the minimum specified could also cause the tire to dislodge from the rim un der severe riding conditions EWB02541 Set tire pressures to the following specifications The low pressure tire gauge is included as stan dard equipment Make two measurements of the tire pressure and use the second reading Dust or dirt in the gauge could cause the first reading to...

Page 43: ...th tubeless tires with valves WARNING EWB02551 Use of improper tires on this ATV may cause loss of control increasing your risk of an acci dent After extensive tests only the tires listed below have been approved for this model by MBK INDUSTRIE 1 Low pressure tire gauge 1 Tire wear limit U10P70E0 book Page 5 Thursday July 21 2011 8 51 AM ...

Page 44: ...ns may not be appropriate 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 Front Manufacturer model MAXXIS C9207 Size AT21 x 7 10 Type Tubeless Rear Manufacturer model MAXXIS M976 Size AT20 x 10 9 Type Tubeless U10P70E0 book Pa...

Page 45: ...top switch to 4 Shift the transmission into neutral The neutral indicator light should come on If the indicator light does not come on have a Yamaha deal er check the electrical circuit TIP This model is equipped with an ignition circuit cut off system The engine can be started under the following conditions The transmission is in neutral The clutch is disengaged with the shift pedal and the drive...

Page 46: ...ne more than 10 seconds on each attempt 7 If the engine is started with the starter choke in position 1 the starter choke should be returned to position 2 to warm up the engine If the engine is started with the starter choke in position 2 keep the starter choke in this position to warm up the engine 8 Continue warming up the engine until it idles smoothly then return the starter choke to position ...

Page 47: ... to a complete stop 2 Pull in the clutch lever to disengage the clutch 3 Apply the brake pedal 4 While pulling the drive select lever handle up ward move the drive select lever forward until it completely stops 5 Release the brake pedal 6 Open the throttle lever gradually and release the clutch lever slowly Shifting Forward to Reverse WARNING EWB00720 Improper operation in reverse could make you h...

Page 48: ...r obstacles and then release the brake pedal 6 Open the throttle lever gradually and release the clutch lever slowly Continue to watch to the rear while backing EBU29762 Shifting This ATV has a 6 speed forward and 1 speed re verse transmission The transmission allows you to control the amount of power you have available at a given speed or for starting accelerating climb ing hills etc To shift int...

Page 49: ... 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 Open the throttle part way and gradually re lease the clutch lever 8 Follow the same procedure when shifting to the next higher gear EBU20650 To decelerate When slowing down or stopping ...

Page 50: ...ur meter follow the figures given in hours There is never a more important period in the life of your engine than the first 320 km 200 mi or 20 hours of riding For this reason you should read the following material carefully Since the engine is brand new do not put an ex cessive load on it for the first 320 km 200 mi or 20 hours The various parts in the engine wear and polish themselves to the cor...

Page 51: ...trol increasing the chance of an accident If you must park on an incline place the ATV transversely across the incline shift into first gear stop the engine ap ply the parking brake and then block the front and rear wheels with rocks or other objects Never park the ATV on hills that are too steep to walk up easily 1 Bring the ATV to a stop by applying the front brake shift into first gear and then...

Page 52: ... aftermarket products similar in design and quality to genuine Yamaha Accesso ries recognize that some aftermarket accessories or modifications are not suitable because of poten tial safety hazards to you or others Installing after market products or having other modifications performed to your ATV that change any of the ve hicle s design or operation characteristics can put you and others at grea...

Page 53: ...l er you must use common sense and good judgment as the stability and handling of an ATV can be changed When adding accessories keep the following points in mind Never exceed the weight limits shown An over loaded ATV can be unstable If you are carrying cargo and towing a trailer in clude the tongue weight in the maximum ATV load limit Load cargo on the carriers as close to the center of the ATV a...

Page 54: ...g a trail er Allow more braking distance A heavier ATV takes longer to stop Avoid making sharp turns unless at very slow speeds Avoid hills and rough terrain Choose terrain carefully Added weight affects the stability and handling of the ATV U10P70E0 book Page 10 Thursday July 21 2011 8 51 AM ...

Page 55: ...7 1 7 EBU21141 RIDING YOUR ATV U10P70E0 book Page 1 Thursday July 21 2011 8 51 AM ...

Page 56: ...nual completely and un derstand the operation of the controls Pay partic ular attention to the safety information on pages 2 1 2 4 Also read all warning and notice labels on your ATV RIDE WITH CARE AND GOOD JUDGMENT Get training if you are inexperienced WARNING EWB01381 Do not operate this ATV or allow anyone else to operate it without proper instruction The risk of an accident is greatly increase...

Page 57: ...WB01390 A child under 16 should never operate an ATV with engine size greater than 90 cc Use by chil dren of ATVs that are not recommended for their age can lead to severe injury or death of the child This ATV is designed to carry the operator only passengers prohibited The long seat is to allow the operator to shift posi tion as needed during operation It is not for carry ing passengers WARNING N...

Page 58: ...G Operating without an ap proved motorcycle helmet increases your chances of a severe head injury or death in the event of an accident EWB01411 Wear eye protection when operating your ATV to reduce the risk of a serious accident or injury Eye protection such as a face shield or goggles may reduce the risk of foreign material getting in your eyes and help prevent loss of vision WARNING Operating wi...

Page 59: ...ach time you use it to make sure the ATV is in safe operating condition Perform the pre operation checks listed on page 5 1 Always follow the inspection and maintenance procedures and schedules described in the Own er s Manual WARNING Failure to inspect the ATV before operating it and to maintain it prop erly increases the possibility of an accident or equipment damage EWB01431 Speed limiter For r...

Page 60: ...th your control or ability to see where you are going Reduce speed and allow more room to stop A heavier vehicle takes longer to stop Avoid hills and rough terrain Choose terrain carefully Use extreme caution when towing or carrying a load on inclines Turn gradually and go slowly As originally equipped this ATV is not designed to carry cargo or tow a trailer If you choose to add ac cessories to ca...

Page 61: ... wheelies and jumping WARNING At tempting wheelies jumps and other stunts in creases the chance of an accident including an overturn Never attempt stunts such as wheelies or jumps Don t try to show off EWB01481 Modifications and accessories Never modify this ATV through improper installa tion or use of accessories or other modification All parts and accessories added to this ATV should be genuine ...

Page 62: ...stem Do not park the ATV in a place where others might be likely to touch it The muffler and other engine parts become ex tremely hot during operation and remain hot after the engine has stopped To reduce the risk of fire during operation or after leaving the ATV do not let brush grass and other materials collect under the vehicle near the muffler or exhaust pipe or next to other hot parts Check u...

Page 63: ...on with other vehicles Watch carefully for other vehicles Make sure you know your country s laws and regulations before you ride on unpaved public streets or roads Do not ride on any paved public street road or motorway WARNING Never operate this ATV on any paved street paved road or motorway You can collide with another vehicle EWB01521 Know the terrain where you ride Ride cautiously in unfamilia...

Page 64: ...NG Failure to use extra care when op erating on excessively rough slippery or loose terrain could cause loss of traction or ATV control which could result in an accident including an overturn EWB01541 When riding in an area where you might not easily be seen such as desert terrain mount a caution flag on the ATV DO NOT use the flag pole bracket as a trailer hitch WARNING You could collide with ano...

Page 65: ... not to accidentally move the shift pedal With the engine idling pull the clutch lever to disengage the clutch and shift into 1st gear and then release the parking brake Open the throttle gradually and at the same time re lease the clutch lever slowly Once the ATV has at tained adequate speed release the throttle lever and at the same time quickly pull in the clutch le ver and shift into 2nd gear ...

Page 66: ...ing at low speeds before attempting to turn at faster speeds Do not turn at speeds too fast for your skills or the conditions ATV could go out of control causing a collision or overturn To achieve maximum traction on unpaved surfac es 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...

Page 67: ...e ATV begins to tip over to the outside while negotiating a turn lean more to the inside It may also be necessary to gradually let off on the throttle and steer to the out side of the turn to avoid tipping over Remember Avoid higher speeds until you are thoroughly familiar with the operation of your ATV CLIMBING UPHILL WARNING EWB01591 Climbing hills improperly can cause overturns or loss of contr...

Page 68: ...or person could be on the other side of the hill 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 Be very careful when turning on any hill Avoid crossing the side of a steep hill if pos sible When crossing the side of a hill shift your weight to the uphill side of the ATV U10P70E0 book Page 14 Thursda...

Page 69: ...ver possible ride straight up hills Slow down when you reach the crest of the hill if you cannot see clearly what is on the other side there could be another person an obstacle or a sharp drop off Use common sense and remember that some hills are too steep for you to climb or de scend If you are climbing a hill and you find that you have not properly judged your ability to make it to the top you s...

Page 70: ...ng the procedure described in the Owner s Manual WARNING Stalling rolling backwards or improperly dismounting while climbing a hill could result in ATV overturning If you cannot control the ATV dismount immediately on the uphill side EWB01802 RIDING DOWNHILL WARNING EWB02640 Going down a hill improperly could cause overturns or loss of control Always follow proper procedures for going down hills a...

Page 71: ...iding your ATV downhill shift your weight as far to the rear and uphill side of the ATV as pos sible Move back on the seat and sit with your arms straight Choose a low gear which will allow the en gine compression to do most of the braking for you Use caution while descending a hill with loose or slippery surfaces Braking ability and traction may be adversely affected by these surfaces Improper br...

Page 72: ...requires you to properly position your weight to maintain proper balance Be sure that you have learned the basic riding skills on flat ground before attempting to cross a sloping surface Avoid slopes with slip pery surfaces or rough terrain that may upset your balance As you travel across a slope lean your body in the uphill direction It may be necessary to correct the steering when riding on loos...

Page 73: ...ving shal 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 Test your brakes after leaving the water If neces sary apply them several times to let friction dry out the linings Do not continue to ride you...

Page 74: ...B01651 Riding improperly over obstacles could cause loss of control or a collision Before operating in a new area check for obstacles Never at tempt to ride over large obstacles such as large rocks or fallen trees When you go over obstacles always follow proper procedures as described in the Owner s Manual Riding over rough terrain should be done with cau tion Look out for obstacles which could ca...

Page 75: ...slowly and be very cautious in order to re duce the chance of skidding or sliding out of control Care should be used when riding on loose or slip pery surfaces since the ATV may slide If unex pected and uncorrected sliding could lead to an accident To reduce the tendency for the front wheels to slide in loose or slippery conditions positioning your weight over the front wheels will sometimes help ...

Page 76: ... the turn Position your weight over the front wheels for better control See page 7 12 If your ATV begins to tip while turning Lean more into the turn to regain balance If nec essary gradually let off the throttle and or steer to the outside of the turn See page 7 12 If your ATV starts to slide sideways Steer in the direction of the slide if you have the room Applying the brakes or accelerating is ...

Page 77: ...going to tip over dismount on the uphill side See page 7 18 If your ATV encounters shallow water Ride slowly and carefully through slow moving water watching for obstacles Be sure to let wa ter drain from the ATV and CHECK YOUR BRAKES AND ELECTRICAL EQUIPMENT turn signals horn headlight etc FOR PROP ER OPERATION when you come out of the wa ter Do not continue to ride your ATV until you have regain...

Page 78: ...rn off the engine when performing mainte nance unless otherwise specified A running engine has moving parts that can catch on body parts or clothing and electri cal parts that can cause shocks or fires Running the engine while servicing can lead to eye injury burns fire or carbon monoxide poisoning possibly leading to death See page 2 3 for more information about carbon monoxide WARNING EWB02690 B...

Page 79: ...ovided in the owner s tool kit are in tended to assist you in the performance of preven tive maintenance and minor repairs However additional tools such as a torque wrench may be necessary to perform certain maintenance work correctly TIP 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 Owner s tool kit 3 Low pressu...

Page 80: ...re special tools data and technical skills NO ITEM CHECK OR MAINTENANCE JOB INITIAL EVERY Whichev er comes first month 1 3 6 6 12 km mi 320 200 1300 800 2500 1600 2500 1600 5000 3200 hours 20 80 160 160 320 1 Fuel line Check fuel hoses for cracks or other damage and replace if necessary 2 Spark plug Check condition and clean regap or replace if necessary 3 Valves Check valve clearance and adjust i...

Page 81: ...ess and tighten all screw clamps and joints if necessary 7 Spark arrester Clean NO ITEM CHECK OR MAINTENANCE JOB INITIAL EVERY Whichev er comes first month 1 3 6 6 12 km mi 320 200 1300 800 2500 1600 2500 1600 5000 3200 hours 20 80 160 160 320 U10P70E0 book Page 4 Thursday July 21 2011 8 51 AM ...

Page 82: ...s NO ITEM CHECK OR MAINTENANCE JOB INITIAL EVERY Whichev er comes first month 1 3 6 6 12 km mi 320 200 1300 800 2500 1600 2500 1600 5000 3200 hours 20 80 160 160 320 1 Air filter element Clean and replace if necessary Every 20 40 hours more often in wet or dusty areas 2 Clutch Check operation and adjust if necessary 3 Front brake Check operation and correct if necessary Check fluid level and ATV f...

Page 83: ...ry 10 Swingarm pivots Check operation and for excessive play and re place bearings if necessary Lubricate with lithium soap based grease 11 Upper and lower arm pivots Lubricate with lithium soap based grease 12 Drive chain Check chain slack and adjust if necessary Check rear wheel alignment and correct if neces sary Clean and lubricate 13 Drive chain rollers Check for wear and replace if necessary...

Page 84: ...ng shaft Lubricate with lithium soap based grease 18 Steering system Check operation and repair or replace if damaged Check toe in and adjust if necessary 19 Engine oil Change Check ATV for oil leakage and correct if neces sary 20 Engine oil filter ele ment Clean or replace if necessary 21 Engine oil strainer Clean 22 Moving parts and cables Lubricate NO ITEM CHECK OR MAINTENANCE JOB INITIAL EVERY...

Page 85: ...ace the brake hoses every four years and if cracked or damaged 23 Throttle lever Check operation Check throttle lever free play and adjust if neces sary Lubricate cable and lever housing 24 Front and rear brake switches Check operation and correct if necessary 25 Lights and switches Check operation and correct if necessary Adjust headlight beam NO ITEM CHECK OR MAINTENANCE JOB INITIAL EVERY Whiche...

Page 86: ...addition the condition of the spark plug can reveal the condition of the engine To remove the spark plug 1 Remove the spark plug cap 2 Remove the spark plug as shown with the spark plug wrench included in the owner s tool kit To check the spark plug 1 Check that the porcelain insulator around the center electrode of the spark plug is a medi um to light tan the ideal color when the ATV is ridden no...

Page 87: ...necessary 3 Measure the spark plug gap with a wire thick ness gauge and if necessary adjust the gap to specification To install the spark plug 1 Clean the surface of the spark plug gasket and its mating surface and then wipe off any grime from the spark plug threads 2 Install the spark plug with the spark plug wrench and then tighten it to the specified torque Specified spark plug NGK DR8EA 1 Spar...

Page 88: ...brication chart To check the engine oil level 1 Place the ATV on a level surface 2 Check the engine oil level on a cold engine TIP If the engine was started before checking the oil level be sure to warm up the engine sufficiently and then wait at least ten minutes until the oil set tles for an accurate reading 3 Remove the engine oil filler cap and then wipe the engine oil dipstick off with a clea...

Page 89: ...ment cleaning 1 Place the ATV on a level surface 2 Start the engine warm it up for several min utes and then turn it off 3 Place an oil pan under the engine to collect the used oil 4 Remove the engine oil filler cap and then re move the engine oil drain bolt to drain the oil from the crankcase NOTICE When remov ing the engine oil drain bolt the compres sion spring oil strainer and O ring will fall...

Page 90: ...t 7 Install the oil filter element and a new O ring TIP Make sure that the O ring is properly seated 8 Apply a thin coat of clean engine oil to the O ring 9 Install the oil filter element cover by installing the bolts and then tighten them to the speci fied torque 1 Engine oil drain bolt 2 O ring 3 Compression spring 4 Oil strainer 1 Oil filter element cover 2 Bolt 3 Oil filter element 4 O ring U1...

Page 91: ...gine oil and then install and tight en the engine oil filler cap TIP Be sure to wipe off spilled oil on any parts after the engine and exhaust system have cooled down Tightening torque Oil filter element cover bolt 10 Nm 1 0 m kgf 7 2 ft lbf 1 Engine oil drain bolt 2 O ring 3 Compression spring 4 Oil strainer Tightening torque Engine oil drain bolt 32 Nm 3 2 m kgf 23 ft lbf Recommended oil See pag...

Page 92: ...e off wait at least ten minutes and then check the oil level and correct it if necessary EBU23743 Cleaning the air filter element The air filter element should be cleaned at the in tervals specified in the periodic maintenance and lubrication chart Clean or if necessary replace the air filter element more frequently if you are riding in unusually wet or dusty areas TIP There is a check hose at the...

Page 93: ...ement out of the air filter case 5 Remove the sponge material from the air filter element frame 1 Air filter case cover 2 Air filter case cover holder 1 Air filter element 1 Unlock U10P70E0 book Page 16 Thursday July 21 2011 8 51 AM ...

Page 94: ...sponge material and replace it if damaged 9 Apply Yamaha foam air filter oil or other qual ity foam air filter oil to the sponge material TIP The sponge material should be wet but not drip ping 10 Pull the sponge material over the air filter ele ment frame 11 Apply all purpose grease to the air filter ele ment seat 12 Insert the air filter element into the air filter case and then install the air ...

Page 95: ...ime the air filter element maintenance is performed check the air inlet of the air filter case for obstructions Check the air filter case rubber joint to the carburetor fittings and the rubber joint manifold fittings for an air tight seal Tighten all fit tings securely to avoid the possibility of unfiltered air entering the engine EBU27703 Cleaning the spark arrester Select a well ventilated area ...

Page 96: ...ng ex haust system back pressure by blocking the end of the muffler with a shop towel 8 Stop the engine and allow the exhaust pipe to cool 9 Check the gasket for damage and replace it if necessary 10 Install the gasket and the purging bolt and then tighten the bolt to the specified torque 1 Tailpipe 2 Spark arrester Tightening torque Tailpipe bolt 10 Nm 1 0 m kgf 7 2 ft lbf 1 Purging bolt 2 Gasket...

Page 97: ...stment Therefore most carburetor adjustments should be left to a Yamaha dealer who has the necessary profes sional knowledge and experience The adjustment described in the following section however may be performed by the owner as part of routine main tenance NOTICE ECB00480 The carburetor has been set and extensively tested at the Yamaha factory Changing these settings without sufficient technica...

Page 98: ...free play should be checked and if necessary adjusted at the intervals specified in the periodic maintenance and lubrication chart The throttle lever free play should measure 2 0 4 0 mm 0 08 0 16 in as shown Periodically check the throttle lever free play and if necessary adjust it as follows TIP The engine idling speed must be checked and ad justed if necessary before adjusting the throttle le ve...

Page 99: ...t ed brakes could lead to a loss in braking ability and an accident EBU24130 Checking the front and rear brake pads The front and rear brake pads must be checked for wear at the intervals specified in the periodic main tenance and lubrication chart EBU28791 Front brake pads Each brake pad is provided with wear indicator grooves which allow you to check the brake pad wear without having to disassem...

Page 100: ...the wear indica tor grooves If a brake pad has worn to the point that a wear indicator groove almost appears have a Yamaha dealer replace the brake pads as a set EBU29841 Checking the brake fluid level Before riding check that the brake fluid is above the minimum level mark Check the brake fluid lev el with the top of the reservoir level Replenish the brake fluid if necessary 1 Wear indicator groo...

Page 101: ...n er Use only the specified brake fluid otherwise the rubber seals may deteriorate causing leakage Refill with the same type of brake fluid Add ing a brake fluid other than DOT 4 may result in a harmful chemical reaction Be careful that water does not enter the brake fluid reservoir when refilling Water will significantly lower the boiling point of the fluid and may result in vapor lock 1 Minimum ...

Page 102: ...ance and lubrication chart In addition have the oil seals of the master cylinders and cali pers as well as the brake hoses replaced at the in tervals listed below or whenever they are damaged or leaking Oil seals Replace every two years Brake hoses Replace every four years EBU24394 Checking the front brake lever free play The brake lever free play must be checked at the intervals specified in the ...

Page 103: ...tion chart Cable length A should measure 64 68 mm 2 52 2 68 in Adjust the parking brake free play as follows 1 Release the parking brake by moving the parking brake lever to the right 2 Fully loosen the locknut and the adjusting bolt at the rear brake caliper 3 Slide the rubber cover back at the brake ca ble 4 Loosen the locknut 5 Turn the parking brake free play adjusting nut in direction a to in...

Page 104: ... serviced or adjust ed brakes could cause the brakes to malfunc tion resulting in reduced braking performance This could increase the chance of a collision or accident After adjusting the parking brake free play block the rear of the ATV off the ground and spin the rear wheels Check to make sure there is no brake drag If brake drag is noticed perform the adjustment again EBU24743 Brake light switc...

Page 105: ... checked and if necessary adjusted at the intervals specified in the periodic maintenance and lubrication chart The clutch lever free play should measure 5 0 10 0 mm 0 20 0 39 in as shown If the free play is incorrect adjust it as follows 1 Slide the rubber cover back at the clutch lever 2 Loosen the locknut 3 To increase the clutch lever free play turn the adjusting bolt at the clutch lever in di...

Page 106: ...ber cover to its original posi tion TIP 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 EBU28144 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 TIP When checkin...

Page 107: ...n direction b and push the wheels forward Turn each adjusting bolt exactly the same amount to maintain correct axle alignment NOTICE Im proper drive chain slack will overload the engine as well as other vital parts of the ATV and can lead to drive chain slippage or breakage To prevent this from occur ring keep the drive chain slack within the specified limits ECB00542 Drive chain slack 25 0 35 0 m...

Page 108: ... side of the swingarm for proper wheel alignment 4 Tighten the locknuts and the axle holding nuts to the specified torques TIP Make sure that the curved edge of the speed sen sor bracket touches the rear wheel hub when tight ening the axle holding nuts 1 Locknut 2 Drive chain slack adjusting bolt 3 Alignment marks 1 Speed sensor bracket 2 Rear wheel hub 3 Curved edge U10P70E0 book Page 31 Thursday...

Page 109: ... steam cleaners high pressure washers or inappropriate solvents ECB00571 2 Wipe the drive chain dry 3 Thoroughly lubricate the drive chain with a special O ring chain lubricant NOTICE Do not use engine oil or any other lubricants for the drive chain as they may contain substances that could damage the O rings ECB00581 EBU24902 Checking and lubricating the cables The operation and the condition of ...

Page 110: ...thly before you begin riding in cold weather If the control cables are frozen or do not work smoothly you could be unable to control the ATV which could lead to an acci dent or collision EBU24922 Checking and lubricating the brake and clutch levers The operation of the brake and clutch levers should be checked before each ride and the lever pivots should be lubricated if necessary Brake lever Reco...

Page 111: ...shift pedals The operation of the brake and shift pedals should be checked before each ride and the pedal pivots should be lubricated if necessary Brake pedal Shift pedal Recommended lubricant Lithium soap based grease U10P70E0 book Page 34 Thursday July 21 2011 8 51 AM ...

Page 112: ...e lubricated by a Yamaha dealer at the intervals specified in the pe riodic maintenance and lubrication chart EBU25004 Lubricating the rear suspension relay arm and connecting arm pivoting points The rear suspension relay arm and connecting arm pivoting points must be lubricated at the inter vals specified in the periodic maintenance and lu brication chart TIP For parts equipped with a grease nipp...

Page 113: ... lubricated at the intervals specified in the periodic mainte nance and lubrication chart TIP For parts equipped with a grease nipple use a grease gun 1 Grease nipple 1 Grease nipple 1 Grease nipple Recommended lubricant Lithium soap based grease U10P70E0 book Page 36 Thursday July 21 2011 8 51 AM ...

Page 114: ... at the intervals specified in the periodic maintenance and lubrication chart TIP For parts equipped with a grease nipple use a grease gun 1 Upper grease nipple 2 Lower grease nipple 1 Upper grease nipple 2 Lower grease nipple Recommended lubricant Lithium soap based grease U10P70E0 book Page 37 Thursday July 21 2011 8 51 AM ...

Page 115: ... oil Call a physician immediately EYES Flush with water for 15 minutes and get prompt medical attention Batteries produce explosive gases Keep sparks flame cigarettes or other sources of ig nition away Ventilate when charging or using in an enclosed space KEEP OUT OF REACH OF CHILDREN NOTICE ECB00620 Never attempt to remove the battery cell seals as this would permanently damage the battery To rem...

Page 116: ...the battery To store the battery If the ATV will not be used for more than one month remove the battery fully charge it and then place it in a cool dry place If the battery will be stored for more than two months check it at least once a month and fully charge it if necessary NOTICE ECB00940 Always keep the battery charged Storing a dis charged battery can cause permanent battery damage To install...

Page 117: ...ecure the owner s tool kit 4 Install the seat See page 4 14 EBU28153 Replacing a fuse The main fuse and signaling system fuse are locat ed under the seat See page 4 14 If a fuse is blown replace it as follows 1 Turn the key to OFF and turn off all electrical circuits NOTICE ECB00640 To prevent accidental short circuiting turn off the main switch when checking or replacing a fuse 1 Positive battery...

Page 118: ...If the fuse immediately blows again have a Yamaha dealer check the electrical system EBU28160 Headlight bulb If the headlight bulb burns out have a Yamaha dealer replace it EBU28170 Headlight beam If a headlight beam adjustment is necessary have a Yamaha dealer perform it EBU25601 Replacing the tail brake light bulb If the tail brake light bulb burns out replace it as follows 1 Remove the lens by ...

Page 119: ...he burnt out bulb by pushing it in and turning it counterclockwise 3 Insert a new bulb into the socket push it in and then turn it clockwise until it stops 4 Install the lens by installing the screw NOTICE Do not overtighten the screw otherwise the lens may break ECB00871 EBU28183 Replacing the license plate light bulb If the license plate light bulb burns out replace it as follows 1 Remove the li...

Page 120: ...to gether with the bulb 3 Remove the burnt out bulb by pulling it out 4 Insert a new bulb into the socket 1 Screw 2 License plate light body 1 License plate light bulb socket 1 License plate light bulb U10P70E0 book Page 43 Thursday July 21 2011 8 51 AM ...

Page 121: ...er replace it EBU25651 Removing a wheel 1 Place the ATV on a level surface 2 Loosen the wheel nuts 3 Elevate the ATV and place a suitable stand under the frame 4 Remove the nuts from the wheel 5 Remove the wheel EBU27481 Installing a wheel 1 Place the ATV on a level surface 2 Install the wheel and the nuts TIP When installing the wheel make sure its arrow mark points toward the rotating direction ...

Page 122: ...ake it to a Yamaha dealer whose skilled technicians have the necessary tools expe rience and know how to service the ATV properly Use only genuine Yamaha replacement parts Im itation parts may look like Yamaha parts but they are often inferior have a shorter service life and can lead to expensive repair bills WARNING EWB02280 Do not smoke when checking the fuel system Fuel can ignite or explode ca...

Page 123: ... the electrodes 3 Ignition Wipe off with a dry cloth and correct the spark plug gap or replace the spark plug Have a Yamaha dealer check the ATV The engine does not start Have a Yamaha dealer check the ATV The engine does not start Check the battery Operate the electric starter 4 Battery The engine turns over quickly The engine turns over slowly The battery is good Check the battery lead connectio...

Page 124: ...after washing Apply the brakes several times at slow speeds to let friction dry out the linings EWB02311 NOTICE Excessive water pressure may cause water seepage and deteriora tion of wheel bearings brakes transmis sion seals and electrical devices Many expensive repair bills have resulted from improper high pressure detergent applica tions such as those available in coin oper ated car washers ECB0...

Page 125: ...will prevent fuel deposits from building up Pour the drained fuel into the fuel tank 4 Fill up the fuel tank and add fuel stabilizer if available to prevent the fuel from deteriorat ing 5 Perform the following steps to protect the cyl inder piston rings etc from corrosion a Remove the spark plug cap and spark plug b Pour a teaspoonful of engine oil into the spark plug bore c Install the spark plug...

Page 126: ... 8 Cover the muffler outlet with a plastic bag to prevent moisture from entering it 9 Remove the battery and fully charge it Store it in a cool dry place and charge it once a month Do not store the battery in an exces sively cold or warm place less than 0 C 30 F or more than 30 C 90 F For more in formation on storing the battery see page 8 38 TIP Make any necessary repairs before storing the ATV U...

Page 127: ... SOHC Cylinder arrangement Forward inclined single cylinder Displacement 349 cm Bore stroke 83 0 64 5 mm 3 27 2 54 in Compression ratio 9 20 1 Starting system Electric starter Lubrication system Wet sump Engine oil Recommended brand YAMALUBE Type SAE 5W 30 10W 30 10W 40 15W 40 20W 40 or 20W 50 Recommended engine oil grade API service SG type or higher JASO standard MA 0 10 30 50 70 90 110 130 F 20...

Page 128: ...8EA Spark plug gap 0 6 0 7 mm 0 024 0 028 in Clutch Clutch type Wet multiple disc Operation Left hand operation Transmission Primary reduction system Spur gear Primary reduction ratio 76 24 3 166 Secondary reduction system Chain drive Secondary reduction ratio 38 13 2 923 Transmission type Constant mesh 6 speed forward 1 speed reverse Operation Left foot operation Gear ratio 1st 36 16 2 685 2nd 33...

Page 129: ...i Rear 25 0 kPa 0 250 kgf cm 3 6 psi Minimum Front 22 0 kPa 0 220 kgf cm 3 2 psi Rear 22 0 kPa 0 220 kgf cm 3 2 psi Front wheel Wheel type Panel wheel Rim size 10 x 5 5AT Rear wheel Wheel type Panel wheel Rim size 9 x 8 0AT Front brake Type Disc brake Operation Right hand operation Specified brake fluid DOT 4 Rear brake Type Disc brake Operation Right foot operation Specified brake fluid DOT 4 Fro...

Page 130: ...Halogen bulb Bulb voltage wattage quantity Headlight 12 V 35 0 35 0 W 1 Tail brake light 12 V 5 0 21 0 W 1 Front turn signal light 12 V 10 0 W 2 Rear turn signal light 12 V 10 0 W 2 Auxiliary light 12 V 5 0 W 1 License plate light 12 V 5 0 W 1 Neutral indicator light 12 V 1 7 W 1 High beam indicator light LED Turn signal indicator light LED Reverse indicator light 12 V 1 7 W 1 Fuses Main fuse 15 0...

Page 131: ...ER MODEL LABEL INFORMATION EBU26030 Vehicle identification number The vehicle identification number is stamped into the frame TIP The vehicle identification number is used to identify your ATV 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...

Page 132: ...11 2 11 1 Model label U10P70E0 book Page 2 Thursday July 21 2011 8 51 AM ...

Page 133: ...usting 8 20 Chassis fasteners 5 6 Cleaning 9 1 Clutch lever 4 6 Clutch lever free play adjusting 8 28 D Drive chain 5 4 Drive chain lubricating 8 32 Drive chain slack 8 29 Drive select lever 4 8 Drive select lever and driving in reverse 6 3 E Engine break in 6 6 Engine cold start 6 1 Engine idling speed 8 20 Engine oil 5 3 Engine oil and oil filter element 8 11 Engine starting a warm 6 3 Engine st...

Page 134: ...ter cleaning 8 18 Spark plug checking 8 9 Specifications 10 1 Speed limiter 4 5 Speedometer 4 2 Starter choke 4 12 Start switch 4 3 Steering lock 4 13 Steering shaft lubricating 8 37 Storage 9 2 Suspension lubricating the upper and lower arm pivots 8 36 Suspension relay arm and connecting arm pivoting points lubricating the rear 8 35 Swingarm pivots lubricating 8 35 T Tail brake light bulb replaci...

Page 135: ...U10P70E0 book Page 3 Thursday July 21 2011 8 51 AM ...

Page 136: ...PRINTED IN FRANCE 2011 07 E U10P70E0 book Page 1 Thursday July 21 2011 8 51 AM ...

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