READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER’S MANUAL YFM250XN WARNING LIT-11626-14-17 This ATV should not be ridden by anyone under 16 years of age.
EBU00001 INTRODUCTION Congratulations on your purchase of the Yamaha YFM250X. It represents the result of many years of 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. This manual will provide you with a good basic understanding of the features and operation of this machine.
EBU00010 IMPORTANT MANUAL INFORMATION E FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERIOUS INJURY 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! WARNING CAUTION: NOTE: Failure to follow WARNING instructions could result in severe injury or death to the machine operator, a bystander or a person inspecting or repairing the machine.
EBU00011 IMPORTANT NOTICE This machine is designed and manufactured for OFF-ROAD use only. It is illegal and unsafe to operate this machine on any public street, road or highway. This machine complies with all applicable OFF-ROAD noise level and spark arrester laws and regulations in effect at the time of manufacture. Please check your local riding laws and regulations before operating this machine. EBU00531 AFFIX DEALER LABEL HERE YFM250XN(C) OWNER’S MANUAL © 2000 by Yamaha Motor Corporation, U.S.A.
EBU00014 WARNING Indicates a potential hazard that could result in serious injury or death. CONTENTS 1 LOCATION OF THE WARNING AND SPECIFICATION LABELS .......1-1 2 SAFETY INFORMATION .................2-1 3 DESCRIPTION AND MACHINE IDENTIFICATION..............................3-1 Identification numbers record ......3-2 Key identification number ............3-2 Vehicle identification number ......3-3 Model label.....................................3-3 4 CONTROL FUNCTIONS...................
5 6 PRE-OPERATION CHECKS ............. 5-1 Front and rear brakes .................... 5-3 Fuel.................................................. 5-5 Engine oil........................................ 5-7 Final gear oil................................... 5-8 Throttle lever .................................. 5-8 Fittings and Fasteners ................... 5-8 Lights............................................... 5-8 Switches ......................................... 5-8 Battery...............................
PERIODIC MAINTENANCE AND ADJUSTMENT .................................8-1 Owner’s manual and tool kit ........8-1 Periodic maintenance/ lubrication .....................................8-3 Engine oil........................................8-5 Final gear oil...................................8-9 Spark plug inspection..................8-11 Air filter cleaning..........................8-12 Carburetor adjustment ................8-15 Idle speed adjustment .................8-15 Valve clearance adjustment.......
12 MAINTENANCE RECORD ............. 12-1 13 ATV LIMITED WARRANTY ........... 13-1 14 YAMAHA EXTENDED SERVICE (Y.E.S.) ............................................
EBU00464 LOCATION OF THE WARNING AND SPECIFICATION LABELS E 1-1
Read and understand all of the labels on your machine. They contain important information for safe and proper operation of your ATV. 1 Never remove any labels from your ATV. If a label becomes difficult to read or comes off, a replacement label is available from your Yamaha dealer.
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6 7 8 1-4
EBU00017* SAFETY INFORMATION E AN ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE. An ATV handles differently from other vehicles including motorcycles and cars. A collision or rollover can occur quickly, even during routine maneuvers such as turning and riding on hills or over obstacles, if you fail to take proper precautions. SEVERE INJURY OR DEATH can result if you do not follow these instructions: ● Read this manual and all labels carefully and follow the operating procedures described.
● ● ● ● ● ● ● ● ● ● Never operate an ATV without wearing an approved motorcycle helmet that fits properly. You should also wear eye protection (goggles or face shield), gloves, boots, longsleeved shirt or jacket, and long pants. Never consume alcohol or drugs before or while operating this ATV. Never operate at speeds too fast for your skills or the conditions. Always go at a speed that is proper for the terrain, visibility and operating conditions, and your experience.
● ● E ● ● ● Always follow proper procedures for climbing hills as described in this manual. Check the terrain carefully before you start up any hill. Never climb hills with excessively slippery or loose surfaces. 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.
● ● ● ● ● ● Always be careful when skidding or sliding. 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 reduce the chance of skidding or sliding out of control. Never operate an ATV in fast flowing water or in water deeper than that recommended in this manual. Remember that wet brakes may have reduced stopping ability. Test your brakes after leaving water.
WARNING When transporting the machine in another vehicle, be sure it is kept upright and that the fuel cock is in the “OFF” position. Otherwise, fuel may leak out of the carburetor or fuel tank. POTENTIAL HAZARD Improper handling of gasoline. WHAT CAN HAPPEN Gasoline can catch fire and you could be burned. WHAT CAN HAPPEN Gasoline is poisonous and can cause injuries. HOW TO AVOID THE HAZARD Always turn off the engine when refueling.
WARNING POTENTIAL HAZARD Starting or running the engine in a closed area. WHAT CAN HAPPEN Exhaust fumes are poisonous and may cause loss of consciousness and death within a short time. HOW TO AVOID THE HAZARD Always operate your machine in an area with adequate ventilation.
EBU00032 DESCRIPTION AND MACHINE IDENTIFICATION 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Spark arrester Rear carrier Seat Fuel tank cap Front carrier Brake pedal Front wheel Headlight Fuel cock Starter (choke) Recoil starter 12. 13. 14. 15. 16. 17. 18. 19. 20. 21.
EBU00033 EBU00035 Identification numbers record Record the key identification number, vehicle identification number and model label information in the spaces provided for assistance when ordering spare parts from a Yamaha dealer or for reference in case the vehicle is stolen. 1. KEY IDENTIFICATION NUMBER: Key identification number The key identification number is stamped on the key as shown in the following illustration. This number can be used for ordering a new key. 3 3 3 4 5 6 7 8 2.
EBU00036 EBU00038 Vehicle identification number The vehicle identification number stamped into the frame. Model label The model label is affixed to the frame. Record the information on this label in the space provided. This information will be needed to order spare parts from your Yamaha dealer. is 1. Vehicle identification number NOTE: The vehicle identification number is used to identify your machine. 1.
EBU00039 CONTROL FUNCTIONS 4 WARNING Indicates a potential hazard that could result in serious injury or death. 4 4 4 EBU00041 Main switch Functions of the respective switch positions are as follows: 5 6 7 ON: Engine can be started only at this position and the headlight and taillight come on when the light switch is on. 8 9 40 44 OFF: All electrical circuits are switched off. The key can be removed in this position.
EBU00043 EBU00053 Indicator lights Handlebar switches 1. Reverse indicator light “R” 2. Neutral indicator light “N” 1. Lights switch “LIGHTS” 2. Engine stop switch “ENG.STOP” 3. Start switch “START” EBU00602 Reverse indicator light “R” This indicator light comes on when the transmission is in reverse. EBU00054 Engine stop switch “ENG. STOP” Make sure that the engine stop switch is in the “RUN” position.
EBU00647 EBU00734 Start switch “START” The starter motor cranks the engine when this switch is pushed. Light switch “LIGHTS” Turn the switch to the “LO” position to switch on the low beam and the taillight. Turn the switch to the “HI” position to switch on the high beam and the taillight. Turn the switch to the “OFF” position to switch off the headlight and the taillight. CAUTION: See the starting instructions on page 6-1 prior to starting the engine.
EBU00062 Throttle lever Once the engine is running, movement of the throttle lever will increase the engine speed. Regulate the speed of the machine by varying the throttle position. Because the throttle is spring-loaded, the machine will decelerate, and the engine will return to an idle any time the hand is removed from the throttle lever. Before starting the engine, check the throttle to be sure it is operating smoothly. Make sure it returns to the idle position as soon as the lever is released.
EBU00066 Speed limiter The speed limiter keeps the throttle from fully opening, even when the throttle lever is pushed to the maximum. Screwing in the adjuster limits the maximum engine power available and decreases the maximum speed of the ATV. WARNING POTENTIAL HAZARD Improper adjustment of the speed limiter and throttle. WHAT CAN HAPPEN The throttle cable could be damaged. Improper throttle operation could result. You could lose control, have an accident or be injured.
EBU00070 EBU00073 Front brake lever The front brake lever is located on the right handlebar. Pull it toward the handlebar to apply the front brake. Rear brake pedal and lever The brake pedal is located on the right side of the machine and the brake lever is located on the left handlebar. Push down on the pedal or pull the lever toward the handlebar to apply the rear brake. 1. Front brake lever 1.
1.
EBU00074 Parking brake Use the parking brake when you have to start the engine or park the machine, especially on a slope. Apply the rear brake lever and push down the lock plate to apply the parking brake. Squeeze the rear brake lever to release the parking brake. 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 starting the engine. This could cause loss of control or a collision.
EBU00083 EBU00085 Shift pedal This machine is equipped with a constantmesh 5-speed transmission. The shift pedal is located on the left side of the engine. Neutral is at the bottom position. Drive select lever The drive select lever is used for driving the machine either forward or in reverse. Refer to page 6-4 for drive select lever operation. 1. Shift pedal 1. Drive select lever N.
EBU00590 Recoil starter Firmly grasp the handle and pull slightly until engagement can be felt. Then pull forcefully, being careful not to pull the rope all the way out. WARNING POTENTIAL HAZARD Starting the engine in gear and/or starting the engine without setting the parking brake. WHAT CAN HAPPEN The ATV could start to move unexpectedly, which could cause an accident. HOW TO AVOID THE HAZARD Put the transmission in neutral and set the parking brake before starting the engine. 1.
EBU00092 Fuel tank cap Remove the fuel tank cap by turning it counterclockwise. 1.
EBU00093 Fuel cock The fuel cock supplies fuel from the fuel tank to the carburetor. The fuel cock has three positions. OFF: With the lever in this position fuel will not flow. Always turn the lever to this position when the engine is not running. ON: With the lever in this position, fuel flows to the carburetor. Normal riding is done with the lever in this position. RES: This indicates reserve. If you run out of fuel while riding, turn the lever to this position.
EBU00094 Starter (choke) Starting a cold engine requires a richer airfuel mixture. A separate starter circuit supplies this mixture. Move in direction a to turn on the starter (choke). Move in direction b to turn off the starter (choke). Refer to “Starting a cold engine” for proper operation. (See page 6-1.) 1. Fully-open 3. Closed 2. Half open A.
EBU00567 Seat To remove the seat, pull the seat lock lever 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. 1. Seat lock lever NOTE: Make sure that the seat is securely fitted.
EBU00098 Storage box Maximum load limit: 2 kg (4.4 lb) CAUTION: To protect from damage, do not put metal products, like tools or sharply edged products directly in the storage box. If they must be stored, wrap them in appropriate cushion material.
EBU00099 Front carrier Maximum load limit: 30 kg (66 lb) EBU00100 Rear carrier Maximum load limit: 45 kg (99 lb) a. Increase spring preload EBU00634 Rear shock absorber adjustment The spring preload can be adjusted to suit the rider’s weight and riding conditions. Adjust the spring preload as follows: To increase the spring preload, turn the adjuster in direction a. To decrease the spring preload, turn the adjuster in direction b. b.
PRE-OPERATION CHECKS Before using this machine, check the following points: ITEM E ROUTINE PAGE Brakes • Check operation, condition and free play. • Adjust if necessary. Fuel • Check fuel level. • Fill with fuel if necessary. Engine oil • Check oil level. • Fill with oil if necessary. 5-7, 8-5 ~ 8-8 Final gear oil • Check for leakage. 5-8, 8-9 ~ 8-10 Throttle • Check for proper throttle cable operation.
WARNING POTENTIAL HAZARD Failure to inspect the ATV before operating. Failure to properly maintain the ATV. 5 WHAT CAN HAPPEN Increases the possibility of an accident or equipment damage. 5 5 5 5 6 HOW TO AVOID THE HAZARD Always inspect your ATV each time you use it to make sure the ATV is in safe operating condition. Always follow the inspection and maintenance procedures and schedules described in the Owner’s Manual.
EBU00670* 3. Brake fluid leakage Check to see if any brake fluid is leaking out of the pipe joints or master cylinder. Apply the brakes firmly for one minute. If there is any leaking, have the ATV inspected by a Yamaha dealer. 4. Brake operation Test the brakes at slow speed after starting out to make sure they are working properly. If the brakes do not provide proper braking performance, inspect the brake pads for wear. (See page 8-17.) Front and rear brakes 1.
WARNING POTENTIAL HAZARD Riding with improperly brakes. operating WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. HOW TO AVOID THE HAZARD Always check the brakes at the start of every ride. Do not ride the ATV if you find any problem with the brakes. If a problem cannot be corrected by the adjustment procedures provided in this manual, have the ATV inspected by a Yamaha dealer.
EBU00126 Gasohol There are two types of gasohol; gasohol containing ethanol and that containing methanol. Gasohol containing ethanol can be used if ethanol content does not exceed 10%. Gasohol containing methanol is not recommended by Yamaha because it may cause fuel system damage or vehicle performance problems. Fuel Make sure there is sufficient gasoline in the tank. Recommended fuel: UNLEADED FUEL Fuel tank capacity: Total: 12 L (2.64 Imp gal, 3.17 US gal) Reserve: 1.6 L (0.35 Imp gal, 0.
WARNING POTENTIAL HAZARD Improper care when refueling. WHAT CAN HAPPEN Fuel can spill, which can cause a fire and severe injury. Fuel expands when it heats up. If the fuel tank is overfilled, fuel could spill out due to heat from the engine or the sun. HOW TO AVOID THE HAZARD Do not overfill the fuel tank. Be careful not to spill fuel, especially on the engine or exhaust pipe. Wipe up any spilled fuel immediately. Be sure the fuel tank cap is closed securely.
EBU00441 Engine oil Make sure the engine oil is at the specified level. Add oil as necessary. (See page 8-5 ~ 8-8.) CAUTION: Be sure to use motor oils that do not contain anti-friction modifiers. Passenger car motor oils (often labeled “Energy Conserving”) contain anti-friction additives which will cause clutch and/or starter clutch slippage, resulting in reduced component life and poor engine performance.
EBU00145 EBU00152 Final gear oil Make sure the final gear oil is at the specified level. Add oil as necessary (see page 8-9 for details). Fittings and Fasteners Always check the tightness of chassis fittings and fasteners before a ride. Take the machine to a Yamaha dealer or refer to the Service Manual for correct tightening torque. Recommended oil: SAE 80 API GL-4 Hypoid gear oil EBU00153 Lights Check the headlight and taillight to make sure they are in working condition.
EBU00157 Tires 2. The tires should be set to the recommended pressure: ● Recommended tire pressure Front 20 kPa (0.20 kgf/cm2, 2.9 psi) Rear 25 kPa (0.25 kgf/cm2, 3.6 psi) ● Check and adjust tire pressures when the tires are cold. ● Tire pressures must be equal on both sides. 3. Tire pressure below the minimum specified could cause the tire to dislodge from the rim under severe riding conditions. The following are minimums: Front 17 kPa (0.17 kgf/cm2, 2.5 psi) Rear 22 kPa (0.22 kgf/cm2, 3.
4. Use no more than the following pressures when seating the tire beads. Front 250 kPa (2.5 kgf/cm2, 36 psi) Rear 250 kPa (2.5 kgf/cm2, 36 psi) Higher pressures may cause the tire to burst. Inflate the tires very slowly and carefully. Fast inflation could cause the tire to burst.
EBU00159 How to measure tire pressure Use the low-pressure tire gauge. NOTE: The low-pressure tire gauge is included as standard 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 be incorrect. 1. Low-pressure tire gauge Set pressure with tires cold. Set tire pressures to the following specifications: ACE-02EACE-02E Recommended pressure Minimum Maximum Front 20 kPa (0.20 kgf/cm2, 2.9 psi) 17 kPa (0.
EBU00160 Tire wear limit When the tire groove decreases to 3 mm (0.12 in) due to wear, replace the tire. a. 3 mm (0.
EBU00161 EBU00163 OPERATION Starting a cold engine WARNING WARNING POTENTIAL HAZARD Freezing control cables in cold weather. Indicates a potential hazard that could result in serious injury or death. WHAT CAN HAPPEN You could be unable to control the ATV, which could lead to an accident or collision. WARNING POTENTIAL HAZARD Operating ATV without being familiar with all controls.
Position 3 : Cold engine startambient temperature above 25 ˚C (80 ˚F) and warm engine start position. NOTE: ● When the transmission is in neutral, the neutral indicator light should come on. If the light does not come on, ask a Yamaha dealer to inspect it. ● The engine can be started in any gear if the rear brake lever is applied. However, it is recommended to shift into neutral before starting the engine. 6 6 6 6 6 6 5.
NOTE: ● If the engine fails to start, release the start switch, then push the start switch again. Pause a few seconds before the next attempt. Each cranking should be as short as possible to preserve battery energy. Do not crank the engine more than 10 seconds on each attempt. ● If the battery is discharged, pull the recoil starter to start the engine. CAUTION: See the “Engine break-in” section prior to operating engine for the first time.
EBU00185 Drive select lever operation and reverse driving CAUTION: Before shifting, stop the machine and return the throttle lever to its closed position. Otherwise the transmission may be damaged. NOTE: When shifting into reverse, the transmission must be in first gear. 1. Drive select lever a. Forward 2. Lock release button b. Reverse NOTE: When in reverse, the reverse indicator light should be on. If the light does not come on, ask a Yamaha dealer to inspect the machine. 1.
EBU00201 Shifting This model has a 5-speed forward and 1-speed reverse transmission with centrifugal automatic clutch. The transmission allows you to control the amount of power you have available at a given speed or for starting accelerating, climbing, etc. To shift into neutral, return the throttle lever to its original position and repeatedly depress the shift pedal until it stops. WARNING POTENTIAL HAZARD Improperly operating in reverse.
4. Once the machine has attained adequate speed, release the throttle lever. 5. Shift into second gear and release the shift pedal. 6. Open the throttle gradually. 7. Follow the same procedure when shifting to the next higher gear. CAUTION: Do not coast for long periods with the engine off, and do not tow the machine a long distance. Even with gears in neutral, the transmission is only properly lubricated when the engine is running. Inadequate lubrication may damage the transmission.
EBU00207 EBU00209 To decelerate: When slowing down or stopping, release the throttle and apply the brakes smoothly and evenly. As you slow down, shift to a lower gear. Be sure that the engine has sufficiently slowed before engaging a lower gear. Improper use of the brakes or shifting can cause the tires to lose traction, reducing control and increasing the possibility of an accident.
EBU00211 If any abnormality is noticed during this period, consult a Yamaha dealer. 1. 0 ~ 10 hours: Avoid continuous operation above half throttle. Allow a cooling off period of five to ten minutes after every hour of operation. Vary the speed of the machine from time to time. Do not operate it at one set throttle position. 2. 10 ~ 20 hours: Avoid prolonged operation above 3/4 throttle. Rev the machine freely through the gears but do not use full throttle at any time. 3.
EBU00219 Parking on a slope 1. Bring the machine to a stop by applying the brakes in low gear. 2. Stop the engine. 3. With the rear brake lever and pedal applied, apply the parking brake and slowly release the rear brake pedal. WARNING POTENTIAL HAZARD Parking on a hill or other incline. WHAT CAN HAPPEN The ATV could roll out of control, increasing the chance of an accident. HOW TO AVOID THE HAZARD Avoid parking on hills or other inclines.
EBU00221 Accessories and loading ● EBU00222 Accessories Accessories can affect the handling and control of your ATV. Keep the following in mind when considering an accessory or operating an ATV which has accessories. ● Choose only accessories designed for your ATV. Your Yamaha dealer has a variety of genuine Yamaha accessories. Other accessories may also be available on the market.
EBU00233 Loading Cargo or a trailer can change the stability and handling of an ATV. You must use common sense and good judgement when carrying cargo or towing a trailer. Keep the following points in mind: ● Never exceed the weight limits shown. An overloaded ATV can be unstable. ● ● MAXIMUM LOADING LIMIT ● Vehicle loading limit (total weight of cargo, rider and accessories, and tongue weight): 165 kg (364 lb) ● Front carrier: 30 kg (66 lb) ● Rear carrier: 45 kg (99 lb) ● Storage box: 2 kg (4.
● ● ● ● Ride more slowly than you would without a load. The more weight you carry, the slower you should go. Although conditions vary, it is good practice not to exceed 2nd gear whenever you are carrying heavier loads or when towing a trailer. Allow more braking distance. A heavier vehicle 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.
E EBU00543 WARNING Indicates a potential hazard that could result in serious injury or death.
RIDING ATV Riding YOUR Your ATV E Riding Your ATV 7-1 7
7-2
WARNING Indicates a potential hazard that could result in serious injury or death. GETTING TO KNOW YOUR ATV This ATV is mainly for utility use, but may also be used for recreation. This section, Riding your ATV, provides general ATV riding instructions for recreational riding. The skills and techniques described in this section, however, are appropriate for all types of riding. Riding your ATV requires special skills acquired through practice over a period of time.
RIDE WITH CARE AND GOOD JUDGEMENT HOW TO AVOID THE HAZARD Beginning and inexperienced operators should complete the certified training course offered by Yamaha. They should then regularly practice the skills learned in the course and the operating techniques described in this Owner’s Manual. For more information about the training course, contact an authorized ATV dealer or call 1-800-447-4700. Get training if you are inexperienced. Beginners should get training from a certified instructor.
Not recommended for children under 16 years of age. WARNING POTENTIAL HAZARD Failure to follow the age recommendations for this ATV. WHAT CAN HAPPEN Use by children of ATVs that are not recommended for their age can lead to severe injury or death of the child. HOW TO AVOID THE HAZARD A child under 16 should never operate an ATV with engine size greater than 90cc.
This machine is designed to carry operator and cargo only - passengers prohibited. 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 passenger. HOW TO AVOID THE HAZARD Never carry a passenger. The long seat is to allow the operator to shift position as needed during operation. It is not for carrying passengers.
Apparel Operating without protective clothing increases your chances of severe injury in the event of an accident. WARNING POTENTIAL HAZARD Operating this ATV without wearing an approved motorcycle helmet, eye protection and protective clothing. HOW TO AVOID THE HAZARD Always wear an approved motorcycle helmet that fits properly.
Do not operate after consuming alcohol or drugs. Operator’s performance capability is reduced by the influence of alcohol or drugs. WARNING POTENTIAL HAZARD Operating this ATV after consuming alcohol or drugs. WHAT CAN HAPPEN Could seriously affect your judgment. Could cause you to react more slowly. Could affect your balance and perception. Could result in an accident. HOW TO AVOID THE HAZARD Never consume alcohol or drugs before or while driving this ATV.
Pre-operation checks Always perform the pre-operation checks listed on page 5-1 before riding for safety and proper care of the machine. WARNING POTENTIAL HAZARD Operating this ATV with improper tires, or with improper or uneven tire pressure. WARNING POTENTIAL HAZARD Failure to inspect the ATV before operating. Failure to properly maintain the ATV.
Speed limiter For riders inexperienced with this model, this model is equipped with a speed limiter in the throttle lever housing. The speed limiter limits the power and top speed of the machine. Turning the screw in decreases top speed, and turning it out increases top speed. WARNING Indicates a potential hazard that could result in serious injury or death. Do not operate at speeds too fast for your skills or the conditions.
Loading and accessories Use extra caution when riding the machine with additional loads, such as accessories or cargo. The machine’s handling may be adversely affected. Reduce your speed when adding additional loads. WARNING POTENTIAL HAZARD Overloading this ATV or carrying or towing cargo improperly. WHAT CAN HAPPEN Could cause changes in vehicle handling which could lead to an accident.
During operation Always keep your feet on the footboards during operation. Otherwise your feet may contact the rear wheels. WARNING POTENTIAL HAZARD Removing hands from handlebars or feet from footboards during operation. WHAT CAN HAPPEN Removing even one hand or foot can reduce your ability to control the ATV or could cause you to lose your balance and fall off of the ATV.
Avoid wheelies and jumping. You may lose control of the machine or overturn. WARNING POTENTIAL HAZARD Attempting wheelies, jumps, and other stunts. WHAT CAN HAPPEN Increases the chance of an accident, including an overturn. HOW TO AVOID THE HAZARD Never attempt stunts, such as wheelies or jumps. Don’t try to show off.
Modifications WARNING POTENTIAL HAZARD Operating this ATV with improper modifications. WHAT CAN HAPPEN Improper installation of accessories or modification of this vehicle may cause changes in handling which in some situations could lead to an accident. HOW TO AVOID THE HAZARD Never modify this ATV through improper installation or use of accessories.
Exhaust system The exhaust system on the machine is very hot during and following operation. To prevent burns, avoid touching the exhaust system. Park the machine in a place where pedestrians or children are not likely to touch it. WARNING POTENTIAL HAZARD Hot exhaust system. WHAT CAN HAPPEN Someone touching the exhaust system during or after operation could be burned. HOW TO AVOID THE HAZARD Do not touch the hot exhaust system. Do not park the machine in a place where others might be likely to touch it.
BE CAREFUL WHERE YOU RIDE This machine is designed for off-road use only. Riding on paved surfaces can cause loss of control. WARNING POTENTIAL HAZARD Operating this ATV on paved surfaces. WHAT CAN HAPPEN ATVs are designed for off-road use only. Paved surfaces may seriously affect handling and control of the ATV, and may cause the vehicle to go out of control. HOW TO AVOID THE HAZARD Always avoid paved surfaces, including sidewalks, driveways, parking lots and streets.
Do not ride on any public road, street, or highway. Riding on public roads can result in collisions with other vehicles. WARNING POTENTIAL HAZARD Operating this ATV on public streets, roads or highways. WHAT CAN HAPPEN You can collide with another vehicle. 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.
Know the terrain where you ride. Ride cautiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and other hidden hazards which may cause the machine to upset. 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.
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 vehicle control, which could result in an accident, including an overturn. HOW TO AVOID THE HAZARD Do not operate on excessively rough, slippery or loose terrain until you have learned and practiced the skills necessary to control the ATV on such terrain. Always be especially cautious on these kinds of terrain.
When riding in an area where you might not easily be seen, such as desert terrain, mount a caution flag on the machine. DO NOT use the flag pole bracket as a trailer hitch. WHAT CAN HAPPEN You could be in a collision. You could be injured. HOW TO AVOID THE HAZARD Always mount a caution flag on the machine to make you more visible. Watch carefully for other vehicles. Do not ride in areas posted “no trespassing”. Do not ride on private property without getting permission.
With the engine idling, lift the shift pedal to the 1st gear position and then release the parking brake. Apply the throttle slowly and smoothly. The centrifugal clutch will engage and you will start to accelerate. Once the ATV has attained adequate speed, release the throttle and lift the shift pedal to the 2nd gear position. Release the shift pedal and apply the throttle smoothly. Use this same procedure as you move into the higher gears.
WARNING CAUTION: POTENTIAL HAZARD Engaging a lower gear when the engine speed is too high. Do not shift gears without releasing the throttle. Damage to the engine or drive train may occur. WHAT CAN HAPPEN The wheels could stop rotating. This could cause loss of control, an accident and injury. It could also cause engine or drive train damage. When slowing down or stopping, release the throttle and apply the brakes smoothly and evenly. As you slow down, shift to a lower gear.
TURNING YOUR ATV To achieve maximum traction while riding off-road, the two rear wheels are mounted solidly on one axle and turn together at the same speed. Therefore, unless the wheel on the inside of the turn is allowed to slip or lose some traction, the ATV will resist turning. A special turning technique must be used to allow the ATV to make turns quickly and easily. It is essential that this skill be learned first at low speed.
Once you have learned this technique you should be able to perform it at higher speeds or in tighter curves. This procedure should be practiced at slow speed many times in a large off-road area with no obstacles. If an incorrect technique is used, your ATV may continue to go straight. If the ATV doesn’t turn, come to a stop and then practice the procedure again. If the riding surface is slippery or loose, it may help to position more of your weight over the front wheels by moving forward on the seat.
CLIMBING UPHILL Use proper riding techniques to avoid vehicle overturns on hills. Be sure that you can maneuver your ATV well on flat ground before attempting any incline and then practice riding first on gentle slopes. Try more difficult climbs only after you have developed your skill. In all cases avoid inclines with slippery or loose surfaces, or obstacles that might cause you to lose control. HOW TO AVOID THE HAZARD Never operate the ATV on hills too steep for the ATV or for your abilities.
WARNING An obstacle, a sharp drop, or another vehicle or person could be on the other side of the hill. POTENTIAL HAZARD Climbing hills improperly. WHAT CAN HAPPEN Could cause loss of control or cause the ATV to overturn. HOW TO AVOID THE HAZARD Always follow proper procedures for climbing hills as described in this Owner’s Manual. Always check the terrain carefully before you start up any hill. Never climb hills with excessively slippery or loose surfaces. Shift your weight forward.
If you are climbing a hill and you find that you have not properly judged your ability to make it to the top, you should turn the ATV around while you still have forward motion (provided you have the room to do so) and go down the hill. When crossing the side of a hill: Always follow proper procedures as described in the Owner’s Manual. Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the ATV.
If your ATV has stalled or stopped and you believe you can continue up the hill, restart carefully to make sure you do not lift the front wheels which could cause you to lose control. If you are unable to continue up the hill, dismount the ATV on the uphill side. Physically turn the ATV around and then descend the hill. WARNING POTENTIAL HAZARD Stalling, rolling backwards or improperly dismounting while climbing a hill. WHAT CAN HAPPEN Could result in ATV overturning.
Dismount on uphill side or to a side if pointed straight uphill. Turn the ATV around and remount, following the procedure described in the Owner’s Manual.
RIDING DOWNHILL When riding your ATV downhill, shift your weight as far to the rear and uphill side of the ATV as possible. Move back on the seat and sit with your arms straight. Choose a low gear which will allow the engine compression to do most of the braking for you. Improper braking may cause a loss of traction. Use caution while descending a hill with loose or slippery surfaces. Braking ability and traction may be adversely affected by these surfaces.
7-31
CROSSING A SLOPE Traversing a sloping surface on your ATV 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 slippery surfaces or rough terrain that may upset your balance. If your ATV does begin to tip over, gradually steer in the downhill direction if there are no obstacles in your path.
When crossing the side of a hill: Always follow proper procedures as described in the Owner’s Manual. Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the ATV.
CROSSING THROUGH SHALLOW WATER The ATV can be used to cross slow moving, shallow water of up to a maximum of 35 cm (14 inches) 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 carefully. Remember that wet brakes may have reduced stopping ability. Test your brakes after leaving water. If necessary, apply them several times to let friction dry out the linings.
Test your brakes after leaving the water. Do not continue to ride your ATV without verifying that you have regained proper braking ability. CAUTION: After riding your ATV in water, be sure to drain the trapped water by removing the check hose at the bottom of the air filter case. Wash the ATV in fresh water if it has been operated in salt water or muddy conditions. 1.
RIDING OVER ROUGH TERRAIN Riding over rough terrain should be done with caution. Look out for obstacles which could cause damage to the ATV or could lead to an upset or accident. Be sure to keep your feet firmly mounted on the footboards at all times. Avoid jumping the ATV as loss of control and damage to the ATV may result. WARNING POTENTIAL HAZARD Improperly operating over obstacles. WHAT CAN HAPPEN Could cause loss of control or a collision. Could cause the ATV to overturn.
If the rear wheels of your ATV start to slide sideways, control can usually be regained (if there is room to do so) by steering in the direction of the slide. Applying the brakes or accelerating is not recommended until you have corrected the slide. SLIDING AND SKIDDING Care should be used when riding on loose or slippery surfaces since the ATV may slide. If unexpected and uncorrected, sliding could lead to an accident.
With practice, over a period of time, skill at controlled sliding can be developed. The terrain should be chosen carefully before attempting such maneuvers, since both stability and control are reduced. Bear in mind that sliding maneuvers should always be avoided on extremely slippery surfaces such as ice, since all control may be lost. WARNING POTENTIAL HAZARD Skidding or sliding improperly. WHAT CAN HAPPEN You may lose control of this ATV.
WHAT TO DO IF ... This section is designed to be a reference guide only. Be sure to read each section on riding techniques completely. ● WHAT TO DO ... ● If your ATV doesn’t turn when you want it to: Bring the ATV to a stop and practice the turning maneuvers again. Be sure you are putting your weight on the footboard to the outside of the turn. Position your weight over the front wheels for better control. (See pages 7-23 ~ 7-24.
● ● If your ATV is traversing a sloping surface: Be sure to ride with your weight positioned towards the uphill side of the ATV to maintain proper balance. If the ATV starts to tip, steer down the hill (if there are no obstacles in your way) to regain balance. If you discover that the ATV is going to tip over, dismount on the uphill side. (See pages 7-32 ~ 7-33.) If your ATV encounters shallow water: Ride slowly and carefully through slow moving water, watching for obstacles.
EBU00253 PERIODIC MAINTENANCE AND ADJUSTMENT Have a Yamaha dealer perform service if you are not familiar with machine service. Periodic inspection, adjustment, and lubrication will keep your machine in the safest and most efficient condition possible. Safety is an obligation of the machine owner. The most important points of machine inspection, adjustment, and lubrication are explained on the following pages.
WARNING POTENTIAL HAZARD Operating this ATV with improper modifications. 1. Tool kit WHAT CAN HAPPEN Improper installation of accessories or modification of this vehicle may cause changes in handling which in some situations could lead to an accident. 2. Low-pressure tire gauge The service information included in this manual is intended to provide you, the owner, with the necessary information for completing your own preventive maintenance and minor repairs.
EBU00261 PERIODIC MAINTENANCE/LUBRICATION ITEM Valves* E Spark plug Air filter Carburetor* Cylinder head breather system* Exhaust system* Spark arrester Fuel line* Engine oil Engine oil filter Engine oil strainer Final gear oil Brakes* INITIAL EVERY 1 3 6 6 1 month months months months year ROUTINE • Check valve clearance. • Adjust if necessary. • • • • • • • • • • • • • • • • • • • • • • Check condition. Adjust gap and clean. Replace if necessary. Clean. Replace if necessary.
ITEM Clutch* • Check operation. • Adjust if necessary. • • • Wheel bearings* • Front and rear • suspension* • • • Steering system* • • Steering shaft* • • Fittings and Fasteners* • • Battery* • • Wheels* INITIAL EVERY 1 3 6 6 1 month months months months year ROUTINE Check balance/damage/runout. Repair if necessary. Check bearing assembly for looseness/damage. Replace if damaged. Check operation. Correct if necessary. Check operation. Correct if damaged. Check toe-in. Adjust if necessary.
EBU00270* Engine oil Engine oil level measurement 1. Place the machine on a level place. 2. Warm up the engine for several minutes and stop it. Wait at least ten minutes for the oil to drain back into the crankcase before checking the oil level. CAUTION: Be sure no foreign material enters the crankcase. NOTE: Wait at least ten minutes until the oil level settles before checking. 3. Remove the dipstick and wipe it off with a clean rag. Insert the dipstick in the filler hole without screwing it in. 4.
Engine oil replacement and oil filter element cleaning 1. Place the machine on a level place. 2. Warm up the engine for several minutes and stop it. 3. Place a container under the engine. 4. Remove the dipstick and drain plug to drain the oil. CAUTION: 1. Drain plug 3. Compression spring When removing the drain plug, the compression spring, oil strainer and O-ring will fall out. Take care not to lose these parts. 2. O-ring 4. Oil strainer 5. Remove the oil filter cover and oil filter. 8-6 1.
6. Clean the oil strainer and oil filter with solvent. 7. Inspect the O-ring and replace if damaged. 8. Reinstall the oil filter, O-ring, oil filter cover. 9. Replace the oil strainer, compression spring, O-ring and drain plug. Then, tighten the drain plug and oil filter cover bolts to the specified torques. 10. Fill the engine with oil and install the dipstick. Recommended oil: See page 5-7. Oil quantity: Periodic oil change: 1.5 L (1.3 Imp qt, 1.6 US qt) With oil filter replacement: 1.6 L (1.4 Imp qt, 1.
CAUTION: If oil leakage is found, stop the engine immediately and check for the cause. Oil pressure check 1. Put a cloth around the cylinder. 2. Slightly loosen the oil gallery bolt in the cylinder head. 3. Start the engine and keep it idling until oil begins to seep from the oil gallery. If no oil comes out after one minute, turn the engine off so it will not seize and find the cause. 1. Oil gallery bolt 2. Cloth 4. Restart the engine and check the oil pressure. 5.
EBU00278* Final gear oil Final gear oil measurement 1. Place the machine on a level place. 2. Remove the oil filler bolt and check the oil level. It should be up to the brim of the hole. If the level is low, add oil to raise it to the proper level. CAUTION: Be sure no foreign material enters the final gear case. 1. Final gear oil 2. Correct oil level 3. Oil filler bolt Final gear oil replacement 1. Remove the final gear case cover. 3. Install the oil filler bolt and tighten to the specified torque.
2. Place the machine on a level place. 3. Place a container under the final gear case. 4. Remove the oil filler bolt and the drain plug to drain the oil. 6. Fill the final gear case with oil. Recommended oil: SAE 80 API “GL-4” Hypoid gear oil Oil quantity: Periodic oil change: 0.25 L (0.21 Imp qt, 0.27 US qt) Total amount: 0.27 L (0.23 Imp qt, 0.29 US qt) CAUTION: Be sure no foreign material enters the final gear case. 7. Install the filler bolt and tighten to the specified torque. 1. Drain plug 5.
EBU00286 Before installing the spark plug, measure the electrode gap with a feeler gauge and adjust to specification. Spark plug inspection The spark plug is an important engine component and is easy to inspect. The condition of the spark plug can indicate the condition of the engine. For example, a very white center electrode porcelain color could indicate an intake air leak or carburetion problem for that cylinder. Do not attempt to diagnose such problems yourself.
When installing the spark plug, always clean the gasket surface and use a new gasket. Wipe off any grime from the threads and tighten to the specified torque. Tightening torque: Spark plug: 17.5 Nm (1.75 m·kg, 12.5 ft·lb) EBU00294* Air filter cleaning NOTE: There is a check hose at the bottom of the air filter case. If dust or water collects in this hose, empty the hose and clean the air filter element and air filter case. 1. Check hose 1. Remove the seat. 2. Remove the air filter case cover. 8-12 1.
3. Pull out the air filter element. 4. Separate the foam cover from the air filter element. 5. Tap the element lightly to remove most of the dust and dirt. Blow out the remaining dirt with compressed air. If the element is damaged, replace it. 6. Wash the foam cover gently but thoroughly in water or solvent. 1. Air filter element 2.
WARNING POTENTIAL HAZARD Using low flash point solvents or gasoline to clean the foam cover. WHAT CAN HAPPEN Low flash point solvents or gasoline can catch fire or explode. HOW TO AVOID THE HAZARD Use parts cleaning solvent to clean the foam cover. 7. Squeeze the excess water or solvent out of the foam cover and let it dry. CAUTION: ● ● Do not twist the foam cover when squeezing it. Do not add oil to the foam cover. 8. Inspect the foam cover. If damaged, replace it. 9.
EBU00296 EBU00301 Carburetor adjustment The carburetor is a vital part of the engine and requires very sophisticated adjustment. Most adjusting should be left to a Yamaha dealer who has the professional knowledge and experience to do so. However, the idling speed may be performed by the owner as a part of the usual maintenance routine. Idle speed adjustment NOTE: A diagnostic tachometer must be used for this procedure. 1.
EBU00307 Throttle lever adjustment NOTE: Adjust the engine idling speed before adjusting the throttle lever free play. 1. Loosen the locknut. 2. Turn the adjusting bolt until the throttle lever free play is 3 ~ 5 mm (0.12 ~ 0.20 in). 3. Tighten the locknut. 1. Throttle stop screw EBU00303 Valve clearance adjustment The correct valve clearance changes with use, resulting in improper fuel/air supply or engine noise. To prevent this, the valve clearance must be adjusted regularly.
EBU00312 EBU00313 Front brake pad inspection Inspect the brake pads for damage and wear. If the thickness is less than the specified value, have a Yamaha dealer replace the pads. Rear brake shoe inspection A wear indicator is provided on the rear brake. This indicator allows checking of brake shoe wear without disassembling the brake. Apply the rear brake and check the position of the indicator. If the indicator reaches the wear limit line, ask a Yamaha dealer to replace shoes as a set. 1. Brake pad a.
EBU00755 2. Use only the designated quality brake fluid. Otherwise, the rubber seals may deteriorate, causing leakage and poor brake performance. Brake fluid level inspection Insufficient brake fluid may let air enter the brake system, possibly causing the brakes to become ineffective. Before riding, check that the brake fluid is above the lower level and replenish when necessary. Recommended brake fluid: DOT 4 3. Refill with the same type of brake fluid.
EBU00752* EBU00623 Brake fluid replacement 1. Complete fluid replacement should be done only by trained Yamaha service personnel. 2. Have a Yamaha dealer replace the following components during periodic maintenance or when they are damaged or leaking. ● Replace all rubber seals every two years. ● Replace all hoses every four years. Front brake adjustment The front brake lever should have a free play of zero mm (zero in) at the lever end. If not, ask a Yamaha dealer to adjust it. a.
WARNING POTENTIAL HAZARD Operating with improperly serviced or adjusted brakes. WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. HOW TO AVOID THE HAZARD After servicing: ● Make sure the brakes operate smoothly and that the free play is correct. ● Make sure the brakes do not drag. ● Make sure the brakes are not spongy. All air must be bled from the brake system. Replacement of brake components requires professional knowledge.
EBU00327* Rear brake adjustment Brake pedal 1. Fully loosen the adjusting nut on the brake cable. a. 20 ~ 30 mm (0.8 ~ 1.2 in) Brake lever 1. Loosen the locknut and fully turn in the adjusting bolt on the handlebar. 1. Brake cable adjusting nut 2. Brake rod adjusting nut 2. Turn the adjusting nut on the brake rod until free play at the pedal is 20 ~ 30 mm (0.8 ~ 1.2 in). 8-21 1. Locknut 2.
2. Turn the adjusting nut on brake cable to provide a gap of 0 ~ 1 mm (0 ~ 0.04 in) between the cam shaft lever and pin. 1. Brake cable adjusting nut 3. Turn the adjusting bolt until free play reaches 5 ~ 7 mm (0.2 ~ 0.3 in) at the lever pivot. 1. Locknut a. 5 ~ 7 mm (0.2 ~ 0.3 in) a. 0 ~ 1 mm (0 ~ 0.04 in) 2. Adjusting bolt 4. Tighten the locknut.
EBU00346 Clutch adjustment 1. Loosen the locknut. 2. Slowly turn the adjusting bolt counterclockwise until resistance is felt. Then, turn it 1/8 turn clockwise. WARNING POTENTIAL HAZARD Operating with improperly serviced or adjusted brakes. WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. HOW TO AVOID THE HAZARD After servicing: ● Make sure the brakes operate smoothly and that the free play is correct. ● Make sure the brakes do not drag.
Lubricate the inner cables and the cable ends. If the cables do not operate smoothly, ask a Yamaha dealer to replace them. NOTE: Turn the adjusting bolt counterclockwise to decrease the clutch free play and turn it clockwise to increase the free play. Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil EBU00356 Cable inspection and lubrication WARNING POTENTIAL HAZARD Damaged control cables.
EBU00717 Brake lever and brake pedal lubrication Lubricate the pivoting parts.
EBU00370 EBU00373 Steering shaft lubrication Lubricate the pivot points. Use a grease gun. Wheel removal 1. Elevate the wheel by placing a suitable stand under the frame. 2. Remove the nuts from the wheel. 3. Remove the wheel assembly.
EBU00376 Wheel installation When installing the wheel, reverse the removal procedure. Pay attention to the following. 1. Tapered wheel nuts are used for both front and rear wheels. Install the nut with its tapered side towards the wheel. 2. Tighten the wheel nuts. NOTE: The arrow mark on the tire must point toward the rotating direction of the wheel. 1. Tapered nut Wheel nut torque: Front: 55 Nm (5.5 m·kg, 40 ft·lb) Rear: 55 Nm (5.5 m·kg, 40 ft·lb) 1.
EBU00378 Battery Check the level of the battery fluid and see if the terminals are tight. Add distilled water if the fluid level is low. CAUTION: Do not leave or store the battery on its side. When inspecting the battery, be sure the breather hose is routed correctly. If it touches the frame or exists in such a way as to cause battery electrolyte or gas to exit onto the frame, structural and cosmetic damage to the machine can occur. 1. Battery 8-28 2. Battery breather hose 3.
WARNING EYES: Flush with water for 15 minutes and get prompt medical attention. Keep batteries away from sparks, flames, cigarettes or other sources of ignition. Ventilate when charging or using in a closed space. POTENTIAL HAZARD Failure to handle batteries or battery electrolyte carefully. WHAT CAN HAPPEN You could be poisoned. You could be severely burned by the sulfuric acid in battery electrolyte. Batteries produce explosive gases. HOW TO AVOID THE HAZARD Avoid contact with skin, eyes or clothing.
EBU00382* Replenishing the battery fluid A poorly maintained battery will corrode and discharge quickly. The battery fluid should be checked at least once a month. 1. The level should be between the upper and lower level marks. Use only distilled water if refilling is necessary. CAUTION: Normal tap water contains minerals which are harmful to a battery. Therefore, refill only with distilled water. 5.
EBU00390 Fuse replacement 1. The fuse case is located under the seat. 2. If the fuse is blown, turn off the main switch and install a new fuse of the specified amperage. Then turn on the switches. If the fuse immediately blows again, consult a Yamaha dealer. WARNING POTENTIAL HAZARD Using an improper fuse. WHAT CAN HAPPEN An improper fuse can cause damage to the electrical system which could lead to a fire. HOW TO AVOID THE HAZARD Always use a fuse of the specified rating.
EBU00399 Replacing the headlight bulb If the headlight bulb burns out, replace the bulb as follows: 1. Remove the headlight cover. 1. Cover (× 2) 1. Headlight cover 2. Remove the cover, and turn the bulb holder counterclockwise and remove the defective bulb. 1.
EBU00409 Headlight beam adjustment WARNING CAUTION: POTENTIAL HAZARD The headlight bulb is hot when it is on and immediately after it is turned off. It is advisable to have a Yamaha dealer make this adjustment. WHAT CAN HAPPEN You can be burned, or a fire could start if the bulb touches something flammable. 1. Vertical adjustment: To raise the beam, turn the adjusting screw clockwise. To lower the beam, turn the screw counterclockwise.
EBU00754 4. Install the purging bolt and tighten it. Spark arrester cleaning Select a well-ventilated area free of combustible materials and make sure the exhaust pipe and muffler are cool. 1. Remove the purging bolt. WARNING POTENTIAL HAZARD Improperly purging the exhaust system. Hot exhaust system. WHAT CAN HAPPEN Could injure the eyes. Could cause burns. Could cause carbon monoxide poisoning, possibly leading to death. Could start a fire.
EBU00412 Troubleshooting Although Yamaha machines receive a rigid inspection before shipment from the factory, trouble may occur during operation. Any problem in the fuel, compression, or ignition systems can cause poor starting and loss of power. The troubleshooting chart describes a quick, easy procedure for making checks. If your machine requires any repair, take it to a Yamaha dealer.
EBU00440 Troubleshooting chart There is fuel. Turn the fuel cock to “OFF”. Remove the fuel pipe. Some fuel. Turn the fuel cock to “RES”. Restart engine. No fuel. Supply fuel. 1. Fuel Check if there is fuel in the fuel tank. 2. Compression Use electric starter to see if there is compression. 3. Ignition There is compression. Compression normal. No compression. Ask a Yamaha dealer to inspect. Wet Check fuel flow. Wipe clean with dry cloth. Spark good. 4. Battery Use the electric starter.
EBU00419* CLEANING AND STORAGE CAUTION: Excessive water pressure may cause water seepage and deterioration of wheel bearings, brakes, transmission seals and electrical devices. Many expensive repair bills have resulted from improper high pressure detergent applications such as those available in coin-operated car washers. CLEANING Frequent, thorough cleaning of your machine will not only enhance its appearance but will improve its general performance and extend the useful life of many components. 1.
6. Clean the seat with a vinyl upholstery cleaner to keep the cover pliable and glossy. 7. Automotive type wax may be applied to all painted and chrome plated surfaces. Avoid combination cleanerwaxes. Many contain abrasives which may mar the paint or protective finish. When finished, start the engine and let it idle for several minutes. WARNING POTENTIAL HAZARD Operation with wet brakes after washing. 8 WHAT CAN HAPPEN Wet brakes may have reduced stopping ability, increasing the chance of an accident.
EBU00426* 2. Remove the spark plug, pour about one tablespoon of SAE 10W30 or 20W40 motor oil in the spark plug hole and reinstall the spark plug. Ground the spark plug wire and turn the engine over several times to coat the cylinder wall with oil. 3. Lubricate all control cables. 4. Block up the frame to raise all wheels off the ground. 5. Tie a plastic bag over the exhaust pipe outlet to prevent moisture from entering. 6.
7. Remove the battery and charge it. Store it in a dry place and recharge it once a month. Do not store the battery in an excessively warm or cold place (less than 0 ˚C [30 ˚F] or more than 30 ˚C [90 ˚F]). NOTE: Make any necessary repairs before storing the machine.
EBU00428 SPECIFICATIONS MODEL E YFM250X Dimension: Overall length Overall width Overall height Seat height Wheel base Minimum ground clearance Minimum turning radius 1,940 mm (76.3 in) 1,005 mm (39.5 in) 1,118 mm (44.0 in) 780 mm (30.7 in) 1,170 mm (46.0 in) 150 mm ( 5.
MODEL YFM250X Engine oil: Type Quantity: Periodic oil change With oil filter replacement Total amount See page 5-7 1.5 L (1.3 Imp qt, 1.6 US qt) 1.6 L (1.4 Imp qt, 1.7 US qt) 1.8 L (1.6 Imp qt, 1.9 US qt) 10 10 10 E 10 Final gear case oil: Type Quantity Total amount SAE80 API “GL-4” Hypoid gear oil 0.27 L (0.23 Imp qt, 0.29 US qt) Air filter 10 10 Dry type element 10 Fuel: Type Tank capacity Reserve amount UNLEADED FUEL 12 L (2.64 Imp gal, 3.17 US gal) 1.6 L (0.35 Imp gal, 0.
MODEL E YFM250X Clutch type Wet, centrifugal automatic Transmission: Primary reduction system Primary reduction ratio Secondary reduction system Secondary reduction ratio Transmission type Operation Spur gear 73/22 (3.318) Shaft drive 19/18 × 46/11 (4.414) Constant mesh 5-speed forward, 1-speed reverse Left foot operation Gear ratio: 34/12 (2.833) 34/19 (1.789) 29/22 (1.318) 26/25 (1.040) 23/28 (0.821) 73/22 × 34/12 × 19/18 (9.
MODEL YFM250X Brake: Front brake type Operation Rear brake type Operation Dual disc brake Right hand operation Drum brake Left hand and right foot operation Suspension: Front Rear Strut Swingarm (monocross) Shock absorber: Front Rear Coil spring, Oil damper Coil spring, Oil damper Wheel travel: Front Rear 125 mm (4.9 in) 135 mm (5.3 in) Electrical: Ignition system Generator system Battery type/voltage, capacity DC C.D.I.
EBU00430 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 design 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 b
EBU00431 MAINTENANCE RECORD Copies of work orders and/or receipts for parts you purchase and install will be required to document maintenance done in accordance with the warranty. The chart below is printed only as a reminder to you that the maintenance work is required. It is not acceptable proof of maintenance work.
EBU00432 YAMAHA MOTOR CORPORATION, U.S.A.
13 13 13 13 13 13 13 13 13 130 1313 1313 13 1313 13-2
EBU00435 YAMAHA EXTENDED SERVICE (Y.E.S.
14 14 14 14 14 14 14 14 14 140 1414 1414 1414 14 14-2
E EBU00436 WARNING Indicates a potential hazard that could result in serious injury or death.
EBU00438 E 14-5
EBU00438 WARNING Improper ATV use can result in SEVERE INJURY or DEATH. ALWAYS USE AN APPROVED HELMET AND PROTECTIVE GEAR NEVER USE ON PUBLIC ROADS NEVER CARRY PASSENGERS NEVER USE WITH DRUGS OR ALCOHOL NEVER operate: ALWAYS: • without proper training or instruction. • use proper riding techniques to avoid • at speeds too fast for your skills or vehicle overturns on hills and rough terrain the conditions. and in turns.
