Manuale d’uso / di manutenzione del prodotto YFM250XR del fabbricante Yamaha
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4XE-F8199-15 LIT-11626-16-14 READ THIS MANUAL CAREFULLY! It contains important safety information. This ATV should not be ridden by anyone under 16 years of age. WARNING YFM250XR OWNER’S MANUAL PRINTED IN USA 2002.05-2.0 × 1 CR (E) PRINTED ON RECYCLED PAPER Y AMAHA MO T OR CO .
EBU00776.
EBU00941 1- INTRODUCTION Congratulations on your purchase of the Yamaha YFM250X. It repre sents the result of many years of Yamaha experience in the production of fine sporting, touring, and pace-setting racing machines.
EBU00801 1- IMPORTANT MANUAL INFORMATION FAILURE TO FOLLOW THE WARNINGS CONTAINE D IN THIS MANUAL CAN RESULT IN SERIOUS INJURY OR DEATH. Particularly important information is distinguished in this man.
AFFIX DEALER LABEL HERE 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.
EBU00014 W ARNING Indicates a potential hazard that could result in serious injury or death. CONTENTS LOCATION OF THE WAR NING AND SPECIFICATION LABELS ....... 1-1 SAFETY INFORMATION.................. 2-1 DESCRIPTION AND MA CHINE IDENTIFICATION ......
PRE-OPERATION CHECKS ........... 5-1 Front and rear brakes ......... ............ 5-3 Fuel ................................................. 5-5 Engine oil ........................................ 5-7 Final gear oil ...................................
PERIODIC MAINTENAN CE AND ADJUSTMENT .................................. 8- 1 Owner’s manual and tool kit ............ 8-1 Periodic maintenance/ lubrication ...................................... 8- 3 Engine oil .............................. .......
SPECIFICATIONS.. ........................ 10-1 NOISE REGULATION .................... 11-1 MAINTENANCE RECORD ............ 12-1 ATV LIMITED WARRANTY............ 13-1 YAMAHA EXTENDED SER VICE (Y.E.S.) ........................................... 14-1 10 11 12 13 14 U4XE15.
1-1 EBU00464 1 - LOCATION OF THE WARNING AND SPECIFICATION LABELS U4XE15.book Page 1 Monday, April 8, 2002 2:19 PM.
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 information 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.
1-3 Overloading this A TV or carrying cargo improper ly can change handling. stability and braking performance and can lead to an accident. Never e xceed the maximum rear cargo limit of : 45kg (99 lbs) NEVER sit on the carrier. Refer to instructions in the Owner's Manual.
1-4 6 7 8 9 U4XE15.book Page 4 Monday, April 8, 2002 2:19 PM.
2-1 EBU00924 1- SAFETY INFORMATION AN ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE . An ATV handles differently from other vehicles including motorcycles and cars. A collisi on 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.
2-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ● 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, long-sleeved shirt or jacket, and long pants. ● Never consume alcohol or drugs before or while operating this ATV.
2-3 ● Always follow proper procedures for climbing hills as described i n this manual. Check the ter- rain carefully before you start up any hill. Never climb hill s with excessively slippery or loose surfaces. Shift your weight forward. Never open the throttle suddenly or make sudden gear changes.
2-4 ● Always be careful when skidding or sliding. Learn to safely control skidding or sliding by prac- ticing 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 con- trol.
2-5 WA R N I N G 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.
2-6 WA R N I N G 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 HA ZARD Always operate your ATV in an area with adequate ventilation.
3-1 EBU00032 1- DESCRIPTION AND MACHINE IDENTIFICATION 1. Spark arrester 2. Rear carrier 3. Seat 4. Fuel tank cap 5. Front carrier 6. Brake ped al 7. Rear brake ligh t switch 8. Front wheel 9. Headli ght 10. Fuel cock 11. Starter (c hoke) 12. Recoil starter 13.
3-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 EBU00600 Identification number records Record the key identification number, vehicle identification number and model label infor- mation in the spaces provided for assistance when ordering spare parts from a Yamaha dealer or for reference in case the vehicle is stolen.
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. EBU00787 Model label The model label is affixed to the location in the illustration.
4-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 EBU00039 CONTROL FUNCTIONS W ARNING Indicates a potential hazard that could result in serious injury or death. EBU00942 Main switch Functions of the respective swi.
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 trans- mission is in reverse. EBU00603 Neutral indicator light “ N ” This indicator light comes on when the trans- mission is in neutral.
4-3 EBU00056 Start switch “ START ” The starter motor cranks the engine when this switch is pushed. CAUTION: _ See starting instructions prior to starting engine (see page 6-1 for details).
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 mach ine 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.
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 ad- juster limits the maximum engine power avail- able and decreases the maximum speed of the ATV.
4-6 EBU00070 Front brake lever The front brake lever is located on the right handlebar. Pull it toward the handlebar to ap- ply 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 located on the left handlebar.
4-7 1. Rear brake lever U4XE15.book Page 7 Monday, April 8, 2002 2:19 PM.
4-8 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 re- lease the parking brake.
4-9 EBU00083 Shift pedal This machine is equipped with a constant- mesh 5-speed transmission. The shift pedal is located on the left side of the engine. Neutral is at the bottom position. 1. Shift pedal N. Neutral position EBU0008 5 Drive select lever The drive select lever is used for driving the machine either forward or in reverse.
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 WA R N I N G POTENTIAL HAZARD Starting the engine in gear and/or start- ing the engine without setting the park- ing brake.
4-11 EBU00092 Fuel tank cap Remove the fuel tank cap by turning it coun- terclockwise. 1. Fuel tank cap U4XE15.book Page 11 Monday , April 8, 2002 2:19 PM.
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.
4-13 EBU00094 Starter (choke) Starting a cold engine requires a richer air-fuel 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 ” fo r proper op- eration.
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 leve r U4XE15.book Page 14 Monday , April 8, 2002 2:19 PM.
4-15 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. EBU0058 1 Storage box CAUTION: To protect from damage, do not put metal products, like tools or sharply edged prod- ucts directly in the storage box.
4-16 EBU00582 Front carrier EBU00583 Rear carrier EBU01103 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- justing ring in direction a .
4-17 EBU00112 W ARNING Indicates a potential hazard that could result in serious injury or death. Standard position: B A - Minimum (soft) E - Maximum (hard) U4XE15.
5-1 1- PRE-OPERATION CHECKS Before using this machine, check the following points: ITEM ROUTINE PAGE Front brake • Check operation, free play, fluid level and fluid leakage. • Fill with DOT 4 brake fluid if necessary. 5-3, 8-17 – 8-20 Rear brake • Check operation, condition and free play.
5-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 WA R N I N G POTENTIAL HAZARD Failure to inspect the ATV before oper- ating. Failure to properly maintain the ATV.
5-3 EBU01008 Front and rear brakes Brake levers and brake pedal Check for correct free play in the brake levers and brake pedal. If the free play is incorrect, adjust it. (See pages 8-19 – 8-23.) Check operation of the levers and pedal. They should move smoothly and there should be a firm feeling when the brake is applied.
5-4 WA R N I N G 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.
5-5 EBU01085 Fuel Make sure there is sufficient gasoline in the tank. CAUTION: _ Use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal engine parts, such as the valves and piston rings, as well as to the exhaust system.
5-6 Gasohol There are two types of gasohol; gasohol con- taining ethanol and that containing methanol. Gasohol containing ethanol can be used if ethanol content does not exceed 10%. Gaso- hol containing methanol is not recommended by Yamaha because it may cause fuel system damage or vehicle performance problems.
5-7 EBU01084 Engine oil Make sure the engine oil is at the specified level. Add oil as necessary. (See page 8-5.) CAUTION: _ ● In order to prevent clutch slippage (since the engine oil also lubricates the clutch), do not mix any chemical additives.
5-8 EBU00493 Final gear oil Make sure the final gear oil is at the specified level. Add oil as necessary. (See pages 8-9 – 8-10 for details.) If desired, an SAE 80W90 hypoid gear oil may be used for all conditions. NO TE: GL-4 is a quality and additive rating, GL-5 or GL-6 rated hypoid gear oils may also be used.
5-9 EBU00157 Tires WA R N I N G POTENTIAL HAZARD Operating this ATV with improper tires, or with improper or uneven tire p ressure. WHAT CAN HAPPEN Use of improper tire s on this ATV, or op- eration of this ATV with improper or un- even tire pressure, ma y cause loss of control, increasi ng your risk of accident.
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 th e second reading. Dust or dirt in the gauge could cause the first reading to be incorrect.
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) U4XE15.book Page 12 Monday , April 8, 2002 2:19 PM.
6-1 EBU00161 OPERATION W ARNING Indicates a potential hazard that could result in serious injury or death. EBU00500 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 en- gine stop switch to “ RUN ” .
6-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NO 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.
6-3 NO 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 battery en- ergy. Do not crank the engine more than 10 seconds on each attempt.
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 transmission must be in first gear.
6-5 EBU00201 Shifting This model has a 5-speed forward and 1-speed reverse transmission with centrif ugal automatic clutch. The transmission allows yo u to control the amount of power you have available at a given speed or for startin g accelerating, climb- ing, etc.
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.
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.
6-8 If any abnormality is noticed during this peri- od, 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 opera- tion. Vary the speed of the machine from time to time.
6-9 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 ap- plied, apply the parking brake and slowly release the rear brake pedal. WA R N I N G POTENTIAL HAZARD Parking on a hill or other incline.
6-10 EBU00221 Accessories and loading EBU00222 Accessories Accessories can affect the handling and con- trol 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.
6-11 EBU00588 Loading Cargo or a trailer can change the stability and handling of an ATV. You must use common sense and good judg- ment when carrying cargo or towing a trailer. Keep the following points in mind: ● Never exceed the weight limits shown.
6-12 ● Ride more slowly than you would without a load. The more weight you carry, the slow- er 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.
6-13 EBU00901 W ARNING _ Indicates a potential hazard that could result in serious injury or death. U4XE15.book Page 13 Monday , April 8, 2002 2:19 PM.
7-1 7 1- Riding Your ATV U4XE15.book Page 1 Monday, April 8, 2002 2:19 PM.
7-2 U4XE15.book Page 2 Monday, April 8, 2002 2:19 PM.
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 in- structions for recreational riding.
7-4 RIDE WITH CARE AND GOOD JUDGEMENT Get training if you are inexperienced. Beginners should get training from a certified instructor. Become familiar with this ATV at slow speeds first, even if you are an experi- enced operator.
7-5 Not recommended for children under 16 years of age. WA R N I N G 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.
7-6 This ATV is designed to carry operator and cargo only – passengers prohibited. WA R N I N G 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.
7-7 Apparel WA R N I N G POTENTIAL HAZARD Operating this ATV without wearing an approved motorcycle helmet, eye pro- tection and protective clothing. WHAT CAN HAPPEN Operating without an approved motorcycle helmet increases your chances of a severe head injury or death in the event of an acci- dent.
7-8 Do not operate after consuming alcohol or drugs. Operator ’ s performance capability is reduced by the influence of alcohol or drugs. WA R N I N G POTENTIAL HAZARD Operating this ATV after consuming al- cohol or drugs. WHAT CAN HAPPEN Could seriously affect your judgment.
7-9 Pre-operation checks Always perform the pre-operation checks list- ed on page 5-1 before riding for safety and proper care of the ATV. WA R N I N G POTENTIAL HAZARD Failure to inspect the ATV before oper- ating. Failure to properly maintain the ATV.
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.
7-11 Loading and accessories Use extra caution when riding the ATV with additional loads, such as accessories or car- go. The ATV ’ s handling may be adversely af- fected.
7-12 During operation Always keep your feet on the footboards dur- ing operation. Otherwise your feet may con- tact the rear wheels. WA R N I N G POTENTIAL HAZARD Removing hands from handlebars or feet from footboards during operation.
7-13 Avoid wheelies and jumping. You may lose control of the ATV or overturn. WA R N I N G 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.
7-14 Modifications WA R N I N G POTENTIAL HAZARD Operating this ATV with improper modi- fications. 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.
7-15 Exhaust system The exhaust system on the ATV is very hot during and following operation. To prevent burns, avoid touching the exhaust system. Park the ATV in a place where pedestrians or children are not likely to touch it. WA R N I N G POTENTIAL HAZARD Hot exhaust system.
7-16 BE CAREFUL WHERE YOU RID E This ATV is designed for off-road use only. Riding on paved surfaces can cause loss of control. WA R N I N G POTENTIAL HAZARD Operating this ATV on paved surfaces. WHAT CAN HAPPEN ATVs are designed for off-road use only.
7-17 Do not ride on any public road, street, or high- way. Riding on public roads can result in collisions with other vehicles. WA R N I N G POTENTIAL HAZARD Operating this ATV on public streets, roads or highways. WHAT CAN HAPPEN You can collide with another vehicle.
7-18 Know the terrain where you ride. Ride cau- tiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the ter- rain, and other hidden hazards which may cause the ATV to upset. WA R N I N G POTENTIAL HAZARD Failure to use extra care when operating this ATV on unfamiliar terrain.
7-19 WA R N I N G 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.
7-20 When riding in an area where you might not easily be seen, such as desert terrain, mount a caution flag on the ATV. DO NOT use the flag pole bracket as a trailer hitch. Do not ride in areas posted “ no trespassing ” . Do not ride on private property without getting permission.
7-21 Select a large, flat area off-road to become fa- miliar 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.
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 sufficiently slowed before engaging a lower gear.
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 in- side of the turn is allowed to slip or lose some traction, the ATV will resist turning.
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.
7-25 CLIMBING UPHILL Use proper riding techniques to avoid vehicle overturns on hills. Be sure that you can ma- neuver your ATV well on flat ground before at- tempting any incline and then practice riding first on gentle slopes. Try more difficult climbs only after you have developed your skill.
7-26 WA R N I N G 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.
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. WA R N I N G POTENTIAL HAZARD Improperly crossing hills or turning on hills.
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, dis- mount the ATV on the uphill side.
7-29 Dismount on uphill si de 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 compression to do most of the braking for you.
7-31 U4XE15.book Page 31 Monday , April 8, 2002 2:19 PM.
7-32 CROSSING A SLOPE Traversing a sloping surface on your ATV re- quires 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.
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.
7-34 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 wa- ter, choose your path carefully. Enter where there is no sharp drop off, and avoid rocks or other obstacles which may be slippery or up- set the ATV.
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.
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 footboards at all times.
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, sliding could lead to an accident. To reduce the tendency for the front wheels to slide in loose or slippery conditions, position- ing your weight over the front wheels will sometimes help.
7-38 With practice, over a period of time, skill at controlled sliding can be developed. The ter- rain should be chosen carefully before at- tempting 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.
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.
7-40 ● If your ATV is traversing a sloping surface: Be sure to ride with your weight positioned towards the uphill side of the ATV to main- tain proper balance. If the ATV starts to tip, steer down the hill (if there are no obstacles in your way) to regain balance.
8-1 EBU00515 1 - PERIODIC MAINTENANCE AND ADJUSTMENT Periodic inspection, adjustment and lubrica- tion will keep your machine in the sa fest and most efficient condition possible. Safety is an obligation of the machine owner. The most important points of machine inspection, ad- justment and lubrication are explained on the following pages.
8-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1. Tool kit 2. Low-pressure tire gauge The service information included in this man- ual is intended to provide you, the owner, with the necessary information for completing your own preventive maintenance and minor re- pairs.
8-3 EBU00261 PERIODIC MAINTENANCE/LUB RICATION ITEM ROUTINE INITIAL EVERY 1 month 3 months 6 months 6 months 1 year Valves* • Check valve clearance. • Adjust if ne cessary. Spark plug • Check condition. • Adjust gap and clean. • Replace if necessary.
8-4 * It is recommended that these items be serviced by a Yamah a dealer. ** Lithium-soap-based grease (all-purpose grease) Wheels* • Check balance/damage/ru nout. • Repair if necessary. Wheel bearings* • Check bearing assembly for looseness/damage.
8-5 EBU01100 Engine oil Engine oil level measurement 1. Place the machine on a level surface. 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. NO TE: _ Be sure to wait at least ten minutes until the oil level settles before checking.
8-6 Engine oil replacement and oil filter ele- ment cleaning 1. Place the machine on a level surface. 2. Warm up the engine for several minutes and stop it. 3. Place a container under the engine to collect the used oil. 4. Remove the engine oil filler cap and then the drain bolt to drain the oil.
8-7 5. Remove the oil filter cover and oil filter el- ement. 1. Oil filter cover 2. Oil filter element 3. O-ring 6. Clean the oil strainer and oil filter element with solvent. 7. Inspect the O-ring and replace it if dam- aged. 8. Install the oil filter element, O-ring and oil filter cover.
8-8 11. Fill the engine with oil and install the en- gine oil filler cap. CAUTION: _ Be sure no foreign material enters the crankcase. _ 12. Warm up the engine for several minutes at idle speed. Check for oil leakage while warming up. CAUTION: _ If oil leakage is found, stop the engine im- mediately and check for the cause.
8-9 EBU00825 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.
8-10 2. Place the machine on a level place. 3. Place a container under the final gear case to collect the used oil. 4. Remove the oil filler bolt and the drain bolt to drain the oil. 1. Drain bolt 5. Install the drain bolt and tighten it to the specified torque.
8-11 EBU00870* Spark plug inspection The spark plug is an important engine compo- nent 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.
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 tight- en to the specified torque. EBU00851 Air filter cleaning NO TE: _ There is a check hose at the bottom of the air filter case.
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 as shown.
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, re- place it. 9. Install the foam cover onto the air filter el- ement.
8-15 EBU00296 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 ex- perience to do so. However, the idling speed may be performed by the owner as a part of the usual maintenance routine.
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 clear- ance must be adjusted regularly. This adjust- ment however, should be left to a professional Yamaha service technician.
8-17 EBU00312 Front brake pad inspection Inspect the brake pads for damage and wear. If the thickness is less than the specified val- ue, 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.
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.
8-19 EBU01118 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 main- tenance or when they are damaged or leaking. ● Replace all rubber seals every two years.
8-20 WA R N I N G 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.
8-21 EBU01075 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 is 20 – 30 mm (0.8 – 1.2 in). a.
8-22 2. Turn the adjusting nut on the 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. Ga p: 0 – 1 mm (0 – 0.04 in) 3. Turn the adjusting bolt until free play reaches 5 – 7 mm (0.
8-23 EBU00834 Adjusting the rear brake light switch The rear brake light switch, which is activated by the brake pedal and brake levers, is prop- erly adjusted when the brake light comes on just before braking takes effect. If necessary, adjust the brake light switch as follows.
8-24 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.
8-25 Lubricate the inner cables and the cable ends. If the cables do not operate smoothly, ask a Yamaha dealer to replace them. EBU00717 Brake lever and brake pedal lubrication Lubricate the pivoting parts.
8-26 EBU0037 0 Steering shaft lubrication Lubricate the pivot points. Use a grease gun. Recommended lubricant: Lithium soap base grease U4XE15.book Page 26 Monday , April 8, 2002 2:19 PM.
8-27 EBU01112 Wheel removal 1. Loosen the wheel nuts. 2. Elevate the ATV and place a suitable stand under the frame. 3. Remove the nuts from the wheel. 4. Remove the wheel. EBU01121 Wheel installation 1. Install the wheel and the nuts. NO TE: _ ● Tapered nuts are used for both the front and rear wheels.
8-28 1. Tapered nut 2. Lower the ATV so that the wheel is on the ground. 3. Tighten the wheel nuts to the specified torque. Wheel nut torque: Front: 55 Nm (5.
8-29 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.
8-30 WA R N I N G 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 cloth- ing.
8-31 EBU00542 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.
8-32 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 spec- ified amperage. Then turn on the switch- es. If the fuse immediately blows again, consult a Yamaha dealer.
8-33 EBU01072 Replacing a headlight bulb If a headlight bulb burns out, replace the bulb as follows. 1. Remove the headlight cover. 1. Headlight cover 2. Remove the bulb holder cover. 1. Bulb hold er cover ( × 2) 3. Turn the bulb holder counterclockwise to remove the defective bulb.
8-34 4. Put a new bulb into position and secure it in place with the bulb holder. 5. Install the bulb holder cover and head- light cover. 6. Adjust the headlight beam if necessary. EBU0108 9 Headlight beam adjustment CAUTION: _ It is advisable to have a Yamaha dealer make this adjustment.
8-35 EBU00945 Tail/brake light bulb replacement 1. Open the storage box. (See page 4-15.) 2. Remove the nuts together with washers. 1. Storage box 2. Nut ( × 2) 3. Remove the bulb holder (together with the bulb) by turning it counterclockwise. 1. Bulb hold er 4.
8-36 1. Bulb holder 2. Bulb 5. Install a new bulb in the bulb holder by pushing it inward and turning it clockwise. 6. Install the bulb holder (together with the bulb).
8-37 EBU00754 Spark arrester cleaning Select a well-ventilated area free of combusti- ble materials and make sure the exhaust pipe and muffler are cool.
8-38 EBU00412 Troubleshooting Although Yamaha machines receive a rigid in- spection before shipment from the factory, trouble may occur during operation. Any prob- lem in the fuel, compression, or ignition sys- tems can cause poor starting and loss of power.
8-39 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.
9-1 EBU00419 CLEANING AND STORAGE A. 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. Before cleaning the machine: a. Block off the end of the exhaust pipe to prevent water entry.
9-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 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 cleaner-waxes. Many contain abrasives which may mar the paint or protective finish.
9-3 EBU00530 B. STORAGE Long term storage (60 days or more) of your machine will require some preventive proce- dures to guard against deterioration. After thoroughly cleaning the machine, prepare for storage as follows: 1.
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 ex- cessively warm or cold place (less than 0 ° C (30 ° F) or more than 30 ° C (90 ° F)). NO TE: _ Make any necessary repairs before storing the machine.
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.
10-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Engine oil: Type Quantity: Periodic oil change With oil fi lter 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 SAE 80 API “ GL-4 ” Hypoid gear oil 0.
10-3 Clutch type Wet, centrifugal automatic Transmission: Primary reduction system Primary reduction ratio Secondary reduction system Secondary reduction ratio Transmission type Operatio n Spur gear 73/22 (3.
10-4 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.
11-1 EBU00430 NOISE REGULATION TAMPERING WITH NOISE CONTROL SYS TEM PROHIBITED: Federal law prohibits the following acts or the causing thereof: (1) The removal or rendering inop- erative by any perso.
12-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 EBU00431 MAINTENANCE RECORD Copies of work orders and/or receipts for parts you purchase and insta ll will be required to docu- ment maintenance done in accordance with the warranty. The chart below is printed only as a re- minder to you that the maintenance work is required.
13-1 EBU00432 YAMAHA MOTOR CORPORATION, U.S.A. ATV LIMITED WARRANTY U4XE15.book Page 1 Monday, April 8, 2002 2:19 PM.
13-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 U4XE15.book Page 2 Monday, April 8, 2002 2:19 PM.
14-1 EBU00435 YAMAHA EXTENDED SERVIC E (Y.E.S.) U4XE15.book Page 1 Monday, April 8, 2002 2:19 PM.
14-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 U4XE15.book Page 2 Monday, April 8, 2002 2:19 PM.
EBU00436 W ARNING Indicates a potential hazard that could result in serious injury or death. U4XE15.book Page 3 Monday, April 8, 2002 2:19 PM.
U4XE15.book Page 4 Monday, April 8, 2002 2:19 PM.
EBU00437 U4XE15.book Page 5 Monday, April 8, 2002 2:19 PM.
4XE-F8199-15 LIT-11626-16-14 READ THIS MANUAL CAREFULLY! It contains important safety information. This ATV should not be ridden by anyone under 16 years of age. WARNING YFM250XR OWNER’S MANUAL PRINTED IN USA 2002.05-2.0 × 1 CR (E) PRINTED ON RECYCLED PAPER Y AMAHA MO T OR CO .
Card.fm Page 1 Monday, April 8 , 2002 3:23 PM.
Card.fm Page 2 Monday, April 8 , 2002 3:23 PM.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Yamaha YFM250XR è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Yamaha YFM250XR - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Yamaha YFM250XR imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Yamaha YFM250XR ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Yamaha YFM250XR, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Yamaha YFM250XR.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Yamaha YFM250XR. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Yamaha YFM250XR insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
