Yamaha 4XE-F8199-13 manuel d'utilisation

4XE-F8199-13 LIT-11626-14-17 READ THIS MANUAL CAREFULLY! It contains important safety information. This ATV should not be ridden by anyone under 16 years of age. W ARNING YFM250XN OWNER’S MANUAL[...]

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E 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-set- ting racing machines. With the purchase of this Yamaha, you can now appreciate the high degree of craftsmanship and reliability that have made Yamaha a[...]

E EBU00010 IMPORTANT MANUAL INFORMATION 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! W ARNING Failure to follow WARNING instr[...]

E 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 ridi[...]

EBU00014 W ARNING Indicates a potential hazard that could result in serious injury or death. CONTENTS CONTROL FUNCTIONS ...................4-1 Main switch.....................................4-1 Indicator lights ................................4-2 Handlebar switches .......................4-2 Throttle lever ..................................4-4 Spe[...]

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 ................[...]

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 A[...]

MAINTENANCE RECORD ............. 12-1 ATV LIMITED WARRANTY ........... 13-1 YAMAHA EXTENDED SERVICE (Y.E.S.) ............................................ 14-1 12 13 14[...]

E 1-1 EBU00464 LOCATION OF THE WARNING AND SPECIFICATION LABELS[...]

1-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Read and understand all of the labels on your machine. They contain important in- formation for safe and proper operation of your ATV. 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. 1 2[...]

1-3 3 4 5[...]

1-4 6 7 8[...]

E 2-1 EBU00017* SAFETY INFORMATION AN ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE. An ATV handles differ- ently 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 obsta- cles, if you fail to take proper precautions. SEVERE INJU[...]

2-2 E ● Never operate an ATV without wearing an approved motorcycle helmet that fits proper- ly. You should also wear eye protection (goggles or face shield), gloves, boots, long- sleeved 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 [...]

E 2-3 ● 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 slip- pery 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. ?[...]

2-4 E ● 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[...]

2-5 W ARNING POTENTIAL HAZARD Improper handling of gasoline. WHAT CAN HAPPEN Gasoline can catch fire and you could be burned. HOW TO AVOID THE HAZARD Always turn off the engine when refuel- ing. Do not refuel right after the engine has been running and is still very hot. Do not spill gasoline on the engine or exhaust pipe/muffler when refueling. Ne[...]

2-6 W ARNING 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.[...]

3-1 EBU00032 DESCRIPTION AND MACHINE IDENTIFICATION 1. Spark arrester 2. Rear carrier 3. Seat 4. Fuel tank cap 5. Front carrier 6. Brake pedal 7. Front wheel 8. Headlight 9. Fuel cock 10. Starter (choke) 11. Recoil starter N O TE: The machine you have purchased may differ slightly from those shown in the figures of this manual. 12. Taillight 13. Re[...]

3-2 3 3 3 4 5 6 7 8 9 30 33 33 33 34 EBU00033 Identification numbers record Record the key identification number, vehi- cle identification number and model label information in the spaces provided for as- sistance when ordering spare parts from a Yamaha dealer or for reference in case the vehicle is stolen. 1. KEY IDENTIFICATION NUMBER: 2. VEHICLE [...]

3-3 EBU00036 Vehicle identification number The vehicle identification number is stamped into the frame. 1. Vehicle identification number N O TE: The vehicle identification number is used to identify your machine. EBU00038 Model label The model label is affixed to the frame. Record the information on this label in the space provided. This informatio[...]

4-1 4 4 4 4 5 6 7 8 9 40 44 44 44 44 EBU00039 CONTROL FUNCTIONS W ARNING Indicates a potential hazard that could result in serious injury or death. EBU00041 Main switch Functions of the respective switch posi- tions are as follows: ON: Engine can be started only at this position and the headlight and taillight come on when the light switch is on. O[...]

4-2 EBU00043 Indicator lights 1. Reverse indicator light “R” 2. Neutral indicator light “N” EBU00602 Reverse indicator light “R” This indicator light comes on when the transmission is in reverse. EBU00603 Neutral indicator light “N” This indicator light comes on when the transmission is in neutral. EBU00053 Handlebar switches 1. Lig[...]

4-3 EBU00647 Start switch “START” The starter motor cranks the engine when this switch is pushed. CAUTION: See the starting instructions on page 6-1 prior to starting the engine. EBU00734 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 sw[...]

4-4 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 vary- ing 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. B[...]

4-5 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 maxi- mum speed of the ATV. 1. Locknut 2. Adjuster a. 12 mm (0.47 in) W ARNING POTENTIAL HAZARD Improper adjustment of the spe[...]

4-6 EBU00070 Front brake lever The front brake lever is located on the right handlebar. Pull it toward the handlebar to apply the front brake. 1. Front brake lever EBU00073 Rear brake pedal and lever The brake pedal is located on the right side of the machine and the brake lever is locat- ed on the left handlebar. Push down on the pedal or pull the[...]

4-7 1. Rear brake lever[...]

4-8 EBU00074 Parking brake Use the parking brake when you have to start the engine or park the machine, espe- cially on a slope. Apply the rear brake lever and push down the lock plate to apply the parking brake. Squeeze the rear brake le- ver to release the parking brake. 1. Lock plate W ARNING POTENTIAL HAZARD Improper use of the parking brake. W[...]

4-9 EBU00083 Shift pedal This machine is equipped with a constant- mesh 5-speed transmission. The shift ped- al is located on the left side of the engine. Neutral is at the bottom position. 1. Shift pedal N. Neutral position EBU00085 Drive select lever The drive select lever is used for driving the machine either forward or in reverse. Refer to pag[...]

4-10 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. 1. Recoil starter W ARNING POTENTIAL HAZARD Starting the engine in gear and/or start- ing the engine without setting the park- ing brake. WHAT CAN HAPPEN The ATV could start t[...]

4-11 EBU00092 Fuel tank cap Remove the fuel tank cap by turning it counterclockwise. 1. Fuel tank cap[...]

4-12 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[...]

4-13 EBU00094 Starter (choke) Starting a cold engine requires a richer air- fuel mixture. A separate starter circuit sup- plies 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 prop- er operation. (See page 6-1.) 1. Fully-open 2. Half ope[...]

4-14 EBU00567 Seat To remove the seat, pull the seat lock lever upward and pull up the seat at the rear. 1. Seat lock lever 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. N O TE: Make sure that the seat is securely fitted.[...]

4-15 EBU00098 Storage box CAUTION: To protect from damage, do not put metal products, like tools or sharply edged prod- ucts directly in the storage box. If they must be stored, wrap them in appropriate cushion material. Maximum load limit: 2 kg (4.4 lb)[...]

4-16 EBU00099 Front carrier EBU00100 Rear carrier 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 ad- juster in direction a . To decrease the spring preload, turn the adjuster in direction b .[...]

E 5-1 PRE-OPERATION CHECKS Before using this machine, check the following points: ITEM ROUTINE PAGE Brakes • Check operation, condition and free play. • Adjust if necessary. 5-3, 8-17 ~ 8-23 Fuel • Check fuel level. • Fill with fuel if necessary. 5-5 ~ 5-6 Engine oil • Check oil level. • Fill with oil if necessary. 5-7, 8-5 ~ 8-8 Final [...]

5-2 W ARNING POTENTIAL HAZARD Failure to inspect the ATV before oper- ating. Failure to properly maintain the ATV. WHAT CAN HAPPEN Increases the possibility of an accident or equipment damage. HOW TO AVOID THE HAZARD Always inspect your ATV each time you use it to make sure the ATV is in safe op- erating condition. Always follow the inspection and [...]

5-3 EBU00670* Front and rear brakes 1. Brake levers and brake pedal Check for correct free play in the rear brake lever and that there is no free play in the front brake lever. If the free play is incorrect, adjust it. (See pages 8-17 ~ 8-23.) Check the operation of the levers and pedal. They should move smoothly and there should be a firm feeling [...]

5-4 W ARNING POTENTIAL HAZARD Riding with improperly operating brakes. 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 ad- justment procedur[...]

5-5 EBU00126 Fuel Make sure there is sufficient gasoline in the tank. Your Yamaha engine has been designed to use regular unleaded gasoline with a pump octane number ([R+M]/2) of 86 or higher, or research octane number of 91 or higher. If knocking or pinging occurs, use a different brand of gasoline or premium un- leaded fuel. Unleaded fuel will gi[...]

5-6 W ARNING 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, especia[...]

5-7 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 con- tain anti-friction modifiers. Passenger car motor oils (often labeled “Energy Conserving”) contain anti-friction additives which will cause clutch and/or starter clutch slipp[...]

5-8 EBU00145 Final gear oil Make sure the final gear oil is at the speci- fied level. Add oil as necessary (see page 8-9 for details). If desired, an SAE 80W90 hypoid gear oil may be used for all conditions. N O TE: GL-4 is a quality and additive rating, GL-5 or GL-6 rated hypoid gear oils may also be used. EBU00151 Throttle lever Check to see that[...]

5-9 EBU00157 Tires W ARNING POTENTIAL HAZARD Operating this ATV with improper tires, or with improper or uneven tire pressure. WHAT CAN HAPPEN Use of improper tires on this ATV, or op- eration of this ATV with improper or un- even tire pressure, may cause loss of control, increasing your risk of accident. HOW TO AVOID THE HAZARD 1. The tires listed[...]

5-10 4. Use no more than the following pressures when seating the tire beads. Front 250 kPa (2.5 kgf/cm 2 , 36 psi) Rear 250 kPa (2.5 kgf/cm 2 , 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.[...]

5-11 EBU00159 How to measure tire pressure Use the low-pressure tire gauge. N O TE: The low-pressure tire gauge is included as standard equipment. Make two measure- ments of the tire pressure and use the sec- ond reading. Dust or dirt in the gauge could cause the first reading to be incor- rect. Set pressure with tires cold. Set tire pressures to t[...]

5-12 EBU00160 Tire wear limit When the tire groove decreases to 3 mm (0.12 in) due to wear, replace the tire. a. 3 mm (0.12 in)[...]

6-1 EBU00161 OPERATION W ARNING Indicates a potential hazard that could result in serious injury or death. EBU00163 Starting a cold engine 1. Set the parking brake. 2. Turn the fuel cock to “ON”. 3. Turn the main switch to “ON” and the engine stop switch to “RUN”. 4. Shift the transmission into neutral. W ARNING POTENTIAL HAZARD Operati[...]

6-2 6 6 6 6 6 6 7 8 9 60 66 66 66 66 N O TE: ● 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. How- ever, it is recommended to shift into neutral before starting the engin[...]

6-3 N O TE: ● 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 bat- tery energy. Do not crank the engine more than 10 seconds on each at- tempt. ● If the battery is discharged, pull the re- coil starter [...]

6-4 EBU00185 Drive select lever operation and reverse driving CAUTION: Before shifting, stop the machine and re- turn the throttle lever to its closed posi- tion. Otherwise the transmission may be damaged. N O TE: When shifting into reverse, the transmis- sion must be in first gear. 1. Bring the machine to a complete stop and return the throttle le[...]

6-5 EBU00201 Shifting This model has a 5-speed forward and 1-speed reverse transmission with centrif- ugal automatic clutch. The transmission al- lows 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 repea[...]

6-6 CAUTION: Do not coast for long periods with the en- gine off, and do not tow the machine a long distance. Even with gears in neutral, the transmission is only properly lubricat- ed when the engine is running. Inadequate lubrication may damage the transmission. EBU00205 To start out and accelerate: 1. Release the throttle lever. CAUTION: Always [...]

6-7 EBU00207 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 suf- ficiently slowed before engaging a lower gear. Improper use of the brakes or shifting can cause the tires to lose traction, reduc- ing control and increas[...]

6-8 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 op- erate it at one set throttle position. 2. 10 ~ 20 hours: Avoid pr[...]

6-9 EBU00219 Parking on a slope 1. Bring the machine to a stop by apply- ing the brakes in low gear. 2. Stop the engine. 3. With the rear brake lever and pedal ap- plied, apply the parking brake and slowly release the rear brake pedal. W ARNING POTENTIAL HAZARD Parking on a hill or other incline. WHAT CAN HAPPEN The ATV could roll out of control, i[...]

6-10 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 va- riety of genuine Yamaha accessories. Other accesso[...]

6-11 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. ● Do not exceed the maximum tongue weight. You can measure t[...]

6-12 ● Ride more slowly than you would with- out a load. The more weight you carry, the slower you should go. Although con- ditions vary, it is good practice not to ex- ceed 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 tur[...]

E 6-13 EBU00543 W ARNING Indicates a potential hazard that could result in serious injury or death.[...]

7-1 E RIDING YOUR ATV Riding Your ATV 7-1 7 Riding Your ATV[...]

7-2[...]

7-3 W ARNING 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 a[...]

7-4 RIDE WITH CARE AND GOOD JUDGEMENT Get training if you are inexperienced. Beginners should get training from a certi- fied instructor. Become familiar with this ATV at slow speeds first, even if you are an experienced operator. Do not attempt to operate at maximum performance until you are total- ly familiar with the machine’s handling and per[...]

7-5 Not recommended for children under 16 years of age. W ARNING POTENTIAL HAZARD Failure to follow the age recommenda- tions for this ATV. WHAT CAN HAPPEN Use by children of ATVs that are not rec- ommended for their age can lead to se- vere injury or death of the child. HOW TO AVOID THE HAZARD A child under 16 should never operate an ATV with engi[...]

7-6 This machine is designed to carry operator and cargo only - passengers prohibited. W ARNING POTENTIAL HAZARD Carrying a passenger on this ATV. WHAT CAN HAPPEN Greatly reduces your ability to balance and control this ATV. Could cause an ac- cident, resulting in harm to you and/or your passenger. HOW TO AVOID THE HAZARD Never carry a passenger. T[...]

7-7 Apparel W ARNING POTENTIAL HAZARD Operating this ATV without wearing an approved motorcycle helmet, eye pro- tection and protective clothing. WHAT CAN HAPPEN Operating without an approved motor- cycle helmet increas- es your chances of a severe head injury or death in the event of an accident. Operating without eye protection can result in an a[...]

7-8 Do not operate after consuming alcohol or drugs. Operator’s performance capability is re- duced by the influence of alcohol or drugs. W ARNING POTENTIAL HAZARD Operating this ATV after consuming al- cohol or drugs. WHAT CAN HAPPEN Could seriously affect your judgment. Could cause you to react more slowly. Could affect your balance and percep-[...]

7-9 Pre-operation checks Always perform the pre-operation checks listed on page 5-1 before riding for safety and proper care of the machine. W ARNING POTENTIAL HAZARD Failure to inspect the ATV before oper- ating. Failure to properly maintain the ATV. WHAT CAN HAPPEN Increases the possibility of an accident or equipment damage. HOW TO AVOID THE HAZ[...]

7-10 W ARNING 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. 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 machi[...]

7-11 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. MAXIMUM LOADING LIMIT ● Vehicle loading limit (total weight of car- go, rider and accessories, and tongue weight): 165 kg (3[...]

7-12 During operation Always keep your feet on the footboards during operation. Otherwise your feet may contact the rear wheels. W ARNING POTENTIAL HAZARD Removing hands from handlebars or feet from footboards during operation. WHAT CAN HAPPEN Removing even one hand or foot can re- duce your ability to control the ATV or could cause you to lose you[...]

7-13 Avoid wheelies and jumping. You may lose control of the machine or overturn. W ARNING POTENTIAL HAZARD Attempting wheelies, jumps, and other stunts. WHAT CAN HAPPEN Increases the chance of an accident, in- cluding an overturn. HOW TO AVOID THE HAZARD Never attempt stunts, such as wheelies or jumps. Don’t try to show off.[...]

7-14 Modifications W ARNING POTENTIAL HAZARD Operating this ATV with improper mod- ifications. WHAT CAN HAPPEN Improper installation of accessories or modification of this vehicle may cause changes in handling which in some situ- ations could lead to an accident. HOW TO AVOID THE HAZARD Never modify this ATV through improp- er installation or use o[...]

7-15 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. W ARNING POTENTIAL HAZARD Hot exhaust system. WHAT CAN HAPPEN Someone touching the exhaust system during or after[...]

7-16 BE CAREFUL WHERE YOU RIDE This machine is designed for off-road use only. Riding on paved surfaces can cause loss of control. W ARNING 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 [...]

7-17 Do not ride on any public road, street, or highway. Riding on public roads can result in colli- sions with other vehicles. W ARNING 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,[...]

7-18 Know the terrain where you ride. Ride cau- tiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and other hidden hazards which may cause the machine to upset. W ARNING 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[...]

7-19 W ARNING 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 acci- dent, including an overturn. HOW TO AVOID THE HAZARD Do not operate on excessively rough, slippery or loose terrain until you have le[...]

7-20 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. Do not ride in areas posted “no trespass- ing”. Do not ride on private property with- out getting permission. W ARNING POTENTIAL HAZARD Operating in areas where you mig[...]

7-21 Select a large, flat area off-road to become familiar with your ATV. Make sure that this area is free of obstacles and other riders. You should practice control of the throttle, brakes, shifting procedures, and turning techniques in this area before trying more difficult terrain. Always avoid riding on paved surfaces: the ATV is designed for o[...]

7-22 CAUTION: Do not shift gears without releasing the throttle. Damage to the engine or drive train may occur. 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 suf- ficiently slowed before engaging a lower gear. Improper use of the bra[...]

7-23 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 ma[...]

7-24 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[...]

7-25 CLIMBING UPHILL Use proper riding techniques to avoid ve- hicle 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 sur-[...]

7-26 W ARNING 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 Own- er’s Manual. Always check the terrain carefully be- fore you start up any hill. Never climb hills with excessively [...]

7-27 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. W ARNING POTENTIAL HAZARD Improperly crossing hills or turning on hills. WHAT CAN HAPPEN Could cause loss of[...]

7-28 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. If you start to roll ba[...]

7-29 Dismount on uphill side or to a side if pointed straight uphill. Turn the ATV around and remount, following the pro- cedure described in the Owner’s Manu- al.[...]

7-30 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 com- pression to do most of the braking for you. Improper braking may cause a loss of trac- tion. Use caution while desc[...]

7-31[...]

7-32 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. As you travel ac[...]

7-33 When crossing the side of a hill: Always follow proper procedures as de- scribed in the Owner’s Manual. Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the ATV.[...]

7-34 CROSSING THROUGH SHALLOW WATER The ATV can be used to cross slow mov- ing, shallow water of up to a maximum of 35 cm (14 inches) in depth. Before entering the water, choose your path carefully. En- ter 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. W ARNI[...]

7-35 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 wate[...]

7-36 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 foot- boards at all times. Avoid jumping the ATV as loss of control and damage to the ATV may result. W ARNING POTENTI[...]

7-37 SLIDING AND SKIDDING Care should be used when riding on loose or slippery surfaces since the ATV may slide. If unexpected and uncorrected, slid- ing could lead to an accident. To reduce the tendency for the front wheels to slide in loose or slippery condi- tions, positioning your weight over the front wheels will sometimes help. If the rear wh[...]

7-38 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 al- ways be avoided on extremely slippery surfaces such as ice, since all control may be lost. W AR[...]

7-39 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 foot- board to the outside of the [...]

7-40 ● If your ATV is traversing a sloping sur- face: Be sure to ride with your weight posi- tioned 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. [...]

8-1 EBU00253 PERIODIC MAINTENANCE AND ADJUSTMENT Periodic inspection, adjustment, and lubri- cation 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 ma- chine inspection, adjustment, and lubrica- tion are explained on the following pages. EBU00259*[...]

8-2 1. Tool kit 2. Low-pressure tire gauge The service information included in this manual is intended to provide you, the own- er, with the necessary information for com- pleting your own preventive maintenance and minor repairs. The tools provided in the Owner’s tool kit are sufficient for this pur- pose, except that a torque wrench is also nec[...]

E 8-3 EBU00261 PERIODIC MAINTENANCE/LUBRICATION ITEM ROUTINE INITIAL EVERY 1 month 3 months 6 months 6 months 1 year Valves* • Check valve clearance. • Adjust if necessary. Spark plug • Check condition. • Adjust gap and clean. • Replace if necessary. Air filter • Clean. • Replace if necessary. Every 20~40 hours (more often in wet or d[...]

8-4 E * It is recommended that these items be serviced by a Yamaha dealer. ** Lithium soap base grease Clutch* • Check operation. • Adjust if necessary. Wheels* • Check balance/damage/runout. • Repair if necessary. Wheel bearings* • Check bearing assembly for looseness/damage. • Replace if damaged. Front and rear suspension* • Check o[...]

8-5 EBU00270* Engine oil Engine oil level measurement 1. Place the machine on a level place. 2. Warm up the engine for several min- utes and stop it. Wait at least ten min- utes for the oil to drain back into the crankcase before checking the oil level. N O TE: Wait at least ten minutes until the oil level settles before checking. 3. Remove the dip[...]

8-6 Engine oil replacement and oil filter element cleaning 1. Place the machine on a level place. 2. Warm up the engine for several min- utes and stop it. 3. Place a container under the engine. 4. Remove the dipstick and drain plug to drain the oil. CAUTION: When removing the drain plug, the com- pression spring, oil strainer and O-ring will fall o[...]

8-7 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 cov- er bolts to the specified torques. CAUTION: Before reinstalling the d[...]

8-8 CAUTION: If oil leakage is found, stop the engine im- mediately 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 [...]

8-9 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. 3. Install the oil filler bolt a[...]

8-10 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. 1. Drain plug 5. Install the drain plug and tighten to the specified torque. 6. Fill the final gear case with oil. CAUTION: Be sure no foreign material enters the final gear case. 7. Install [...]

8-11 EBU00286 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 cylin- der. Do not attempt to diagnose such[...]

8-12 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. EBU00294* Air filter cleaning N O TE: 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 [...]

8-13 3. Pull out the air filter element. 4. Separate the foam cover from the air filter element. 1. Air filter element 2. Foam cover 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 thor- oughly in water or solven[...]

8-14 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. Reinstall the foam cover to the air filter element. 10. Reinstall the air filter assembly and parts removed for acce[...]

8-15 EBU00296 Carburetor adjustment The carburetor is a vital part of the engine and requires very sophisticated adjust- ment. Most adjusting should be left to a Yamaha dealer who has the professional knowledge and experience to do so. How- ever, the idling speed may be performed by the owner as a part of the usual mainte- nance routine. CAUTION: T[...]

8-16 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. This adjustment however, should be left to a professional Yamaha service technician. EBU00307 Throttle lever adjustment [...]

8-17 EBU00312 Front brake pad inspection Inspect the brake pads for damage and wear. If the thickness is less than the spec- ified value, have a Yamaha dealer replace the pads. 1. Brake pad a. Wear limit: 1 mm (0.04 in) N O TE: The wheels need to be removed to inspect the brake pads. See page 8-26 for removal procedures. EBU00313 Rear brake shoe in[...]

8-18 EBU00755 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. 1. Minimum level mark Observe these precautions: 1. When checking the fluid level, make sure the t[...]

8-19 EBU00752* Brake fluid replacement 1. Complete fluid replacement should be done only by trained Yamaha service personnel. 2. Have a Yamaha dealer replace the fol- lowing components during periodic maintenance or when they are dam- aged or leaking. ● Replace all rubber seals every two years. ● Replace all hoses every four years. EBU00623 Fro[...]

8-20 W ARNING 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 cor- rect. ● Make sure the brakes do not drag. ● Make sure the brakes [...]

8-21 EBU00327* Rear brake adjustment Brake pedal 1. Fully loosen the adjusting nut on the brake cable. 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). a. 20 ~ 30 mm (0.8 ~ 1.2 in) Brake lever 1. Loosen the locknut and fully turn in the adju[...]

8-22 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 a. 0 ~ 1 mm (0 ~ 0.04 in) 3. Turn the adjusting bolt until free play reaches 5 ~ 7 mm (0.2 ~ 0.3 in) at the lever pivot. 1. Locknut 2. Adjusting bolt a. 5 ~ 7 mm (0.2 ~ 0.3 in) 4. Tighten the loc[...]

8-23 EBU00346 Clutch adjustment 1. Loosen the locknut. 2. Slowly turn the adjusting bolt counter- clockwise until resistance is felt. Then, turn it 1/8 turn clockwise. 1. Locknut 2. Adjusting bolt 3. Tighten the locknut to specification. W ARNING POTENTIAL HAZARD Operating with improperly serviced or adjusted brakes. WHAT CAN HAPPEN You could lose [...]

8-24 N O TE: Turn the adjusting bolt counterclockwise to decrease the clutch free play and turn it clockwise to increase the free play. EBU00356 Cable inspection and lubrication Lubricate the inner cables and the cable ends. If the cables do not operate smooth- ly, ask a Yamaha dealer to replace them. W ARNING POTENTIAL HAZARD Damaged control cable[...]

8-25 EBU00717 Brake lever and brake pedal lubrication Lubricate the pivoting parts. Recommended lubricant: Lithium-soap-based grease (all-purpose grease)[...]

8-26 EBU00370 Steering shaft lubrication Lubricate the pivot points. Use a grease gun. EBU00373 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. Recommended lubricant: Lithium soap base grease[...]

8-27 EBU00376 Wheel installation When installing the wheel, reverse the re- moval procedure. Pay attention to the fol- lowing. N O TE: The arrow mark on the tire must point toward the rotating direction of the wheel. 1. Arrow mark 1. Tapered wheel nuts are used for both front and rear wheels. Install the nut with its tapered side towards the wheel.[...]

8-28 EBU00378 Battery Check the level of the battery fluid and see if the terminals are tight. Add distilled wa- ter 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 electr[...]

8-29 W ARNING POTENTIAL HAZARD Failure to handle batteries or battery electrolyte carefully. WHAT CAN HAPPEN You could be poisoned. You could be se- verely burned by the sulfuric acid in bat- tery electrolyte. Batteries produce explosive gases. HOW TO AVOID THE HAZARD Avoid contact with skin, eyes or cloth- ing. Always shield eyes when working near[...]

8-30 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 up- per and lower level marks. Use only distilled water if refilling is necessary. 1. Maximum level mark “UPPER LEVEL” 2. Minimum level mark ?[...]

8-31 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. 1. Main fuse 2. Spare fuse CAUTION: To prevent accidental short-circuiting, turn off t[...]

8-32 EBU00399 Replacing the headlight bulb If the headlight bulb burns out, replace the bulb as follows: 1. Remove the headlight cover. 1. Headlight cover 2. Remove the cover, and turn the bulb holder counterclockwise and remove the defective bulb. 1. Cover ( × 2) 1. Bulb holder[...]

8-33 3. Put a new bulb into position and se- cure it in place with the bulb holder. 4. Reinstall the cover and headlight cov- er. Adjust the headlight beam if neces- sary. EBU00409 Headlight beam adjustment CAUTION: It is advisable to have a Yamaha dealer make this adjustment. 1. Vertical adjustment: To raise the beam, turn the adjusting screw cloc[...]

8-34 EBU00754 Spark arrester cleaning Select a well-ventilated area free of com- bustible materials and make sure the ex- haust pipe and muffler are cool. 1. Remove the purging bolt. 1. Purging bolt 2. Start the engine and rev it up approxi- mately twenty times while momen- tarily creating exhaust system back pressure by blocking the end of the muf[...]

8-35 EBU00412 Troubleshooting Although Yamaha machines receive a rigid inspection before shipment from the facto- ry, 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 [...]

8-36 E EBU00440 Troubleshooting chart 1. Fuel Check if there is fuel in the fuel tank. There is fuel. Turn the fuel cock to “OFF”. Remove the fuel pipe. No fuel. Fuel cock clogged. Clean fuel cock. Some fuel. Turn the fuel cock to “RES”. Restart engine. No fuel. Supply fuel. 2. Compression Use electric starter to see if there is compression[...]

9-1 EBU00419* CLEANING AND STORAGE CLEANING Frequent, thorough cleaning of your ma- chine will not only enhance its appearance but will improve its general performance and extend the useful life of many components. 1. Before cleaning the machine: a. Block off the end of the exhaust pipe to prevent water entry. A plastic bag and strong rubber band m[...]

9-2 8 8 8 8 8 8 8 8 9 80 88 88 88 88 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 sur- faces. Avoid combination cleaner- waxes. Many contain abrasives which may mar the paint or protective finish. When finished, start the engine and let[...]

9-3 EBU00426* STORAGE Long term storage (60 days or more) of your machine will require some preventive procedures to guard against deterioration. After thoroughly cleaning the machine, prepare for storage as follows: 1. Fill the fuel tank with fresh fuel and add the specified amount of fuel stabi- lizer and conditioner. N O TE: Use of Yamaha fuel s[...]

9-4 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]). N O TE: Make any necessary repairs before storing the machine.[...]

E 10-1 EBU00428 SPECIFICATIONS MODEL 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 ( 5.9 in) 2,900 mm ( 114 in) Basic weight: With oil and full fuel tank 212 kg ([...]

10-2 E 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) 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 Dry type element Fuel: [...]

E 10-3 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: 1st 2nd 3rd 4th 5th Re[...]

10-4 E 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: Igniti[...]

11-1 EBU00430 NOISE REGULATION TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED: Federal law prohibits the following acts or the causing thereof: (1) The removal or render- ing inoperative by any person other than for purposes of maintenance, repair, or replace- ment of any device or element of design incorporated into any new vehicle for the purpose[...]

12-1 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. ACL-02E MAINTENANCE INTER[...]

13-1 EBU00432 YAMAHA MOTOR CORPORATION, U.S.A. ATV LIMITED WARRANTY[...]

13-2 13 13 13 13 13 13 13 13 13 130 1313 1313 13 1313[...]

E 14-1 EBU00435 YAMAHA EXTENDED SERVICE (Y.E.S.)[...]

14-2 14 14 14 14 14 14 14 14 14 140 1414 1414 1414 14[...]

E 14-3 EBU00436 W ARNING Indicates a potential hazard that could result in serious injury or death.[...]

E 14-5 EBU00438[...]

PRINTED IN USA 2000 · 5 - 4.0 × 1C R (E) PRINTED ON RECYCLED PAPER WARNING ALWAYS : • use proper riding techniques to avoid vehicle overturns on hills and rough terrain and in turns. • avoid paved surfaces-pavement may seriously affect handling and control. Improper ATV use can result in SEVERE INJURY or DEATH. NEVER USE WITH DRUGS OR ALCOHOL[...]