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  5. Owner's Manual

Yamaha YFZ450V Owner's Manual

Other manuals for YFZ450V: Owner's Manual

Summary of YFZ450V

  • Page 1

    Owner’s manual read this manual carefully! It contains important safety information. W lit-11626-19-32 5tg-28199-12 this atv should not be ridden by anyone under 16 years of age. Yfz450v 5tg-9-12 hyoshi 5/12/05 3:16 pm page 1.

  • Page 2

    5tg-9-12 hyoshi 5/12/05 3:16 pm page 2.

  • Page 3: Introduction

    Ebu13320 introduction congratulations on your purchase of the yamaha yfz450v. It represents the result of many years of yamaha experience in the production of fine sporting, touring, and pacesetting racing machines. With the purchase of this yamaha, you can now appreciate the high degree of craftsma...

  • Page 4: Important Manual Information

    Ebu08010 important manual information failure to follow the warnings contained in this manual can result in seri- ous injury or death. Particularly important information is distinguished in this manual by the following notations: q the safety alert symbol means attention! Become alert! Your safety i...

  • Page 5: Important Notice

    Ebu15000 important notice this atv is designed and manufactured for off-road use only. It is illegal and unsafe to operate this atv on any public street, road or highway. This atv complies with all applicable off-road noise level and spark arrester laws and regulations in effect at the time of manuf...

  • Page 6: Contents

    Ebu00140 w indicates a potential hazard that could result in serious injury or death. Contents location of the warning and specification labels ................... 1-1 safety information ..................... 2-1 description and machine identifi- cation .................................................

  • Page 7

    Pre-operation checks ................ 5-1 front and rear brakes ......................... 5-3 fuel .................................................... 5-4 engine oil ............................................ 5-6 coolant ............................................... 5-7 chain .....................

  • Page 8

    Periodic maintenance and adjustment ....................................8-1 owner’s manual and tool kit .................8-1 periodic maintenance chart for the emission control system .................... 8-3 general maintenance and lubrication chart ....................................................

  • Page 9

    Cleaning and storage ................ 9-1 a. Cleaning ..................................... 9-1 b. Storage ..................................... 9-3 specifications .............................. 10-1 noise regulation ........................ 11-1 maintenance record ................. 12-1 atv limited...

  • Page 10: Location of The Warning and

    1-1 ebu04640 location of the warning and specification labels 5tg-9-12-1 4/30/05 11:15 am page 1-1.

  • Page 11

    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. 1-2 q w 5fe-21568-0...

  • Page 12

    1-3 r t y q warning never ride as a passenger. Passengers can cause a loss of control, resulting in severe injury or death. 5fe-2151h-40 5fe-2151h-01 e premium unleaded gasoline only 91 min. Pump octane (r+m) 2 5pw-2415e-11 5tg-9-12-1 4/30/05 11:15 am page 1-3.

  • Page 13: Safety Information

    2-1 ebu13381 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 ...

  • Page 14

    2-2 8 always avoid operating an atv on any paved surfaces, including sidewalks, driveways, parking lots and streets. 8 never operate an atv on any public street, road or highway, even a dirt or gravel one. 8 never operate an atv without wearing an approved motorcycle helmet that fits properly. You s...

  • Page 15

    2-3 8 always follow proper procedures for turning as described in this manual. Practice turning at low speeds before attempting to turn at faster speeds. Do not turn at excessive speed. 8 never operate the atv on hills too steep for the atv or for your abilities. Practice on smaller hills before att...

  • Page 16

    2-4 8 always use proper procedures if you stall or roll backwards when climbing a hill. To avoid stalling, use the proper gear and maintain a steady speed when climbing a hill. If you stall or roll backwards, follow the special procedure for braking described in this manual. Dismount on the uphill s...

  • Page 17

    2-5 8 always use the size and type of tires specified in this manual. 8 always maintain proper tire pressure as described in this manual. 8 never modify an atv through improper installation or use of accessories. 8 never exceed the stated load capacity for an atv. Cargo should be properly distribute...

  • Page 18: Qwarning

    2-6 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 refueling. Do not refuel immediately after the engine has been running and is still very hot. Do not spill gasoline on the engi...

  • Page 19: Qwarning

    2-7 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 atv in an area with adequate ventilation. Qwarning 5tg-9-12-1 4/30/05 11:15...

  • Page 20

    3-1 ebu00320 1. Spark arrester 12. Tail/brake light 2. Seat 13. Coolant reservoir 3. Fuel tank cap 14. Shift pedal 4. Radiator cap 15. Engine oil tank 5. Oil filter element 16. Clutch lever 6. Brake pedal 17 handlebar switches 7. Headlights 18. Parking brake lever 8. Fuel cock 19. Main switch 9. Sta...

  • Page 21

    Ebu06000 identification number records record the key identification number, vehicle identification number and model label informa- tion 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: ...

  • Page 22

    Ebu00360 vehicle identification number the vehicle identification number is stamped into the frame. 1. Vehicle identification number note: the vehicle identification number is used to identify your machine. Ebu07870 model label the model label is affixed to the location in the illustration. Record t...

  • Page 23: Control Functions

    Ebu00390 control functions w indicates a potential hazard that could result in serious injury or death. Ebu00420 main switch functions of the respective switch positions are as follows: on: the engine can be started only at this position. Off: all electrical circuits are switched off. The key can be...

  • Page 24

    Ebu08020 indicator and warning lights 1. Neutral indicator light “n” 2. Coolant temperature warning light “ ” ebu06030 neutral indicator light “n” this indicator light comes on when the transmis- sion is in neutral. Ebu13850 coolant temperature warning light “ ” when the coolant temperature reaches ...

  • Page 25

    C c 8 the engine may overheat if the atv is overloaded. If this happens, reduce the load to specification. 8 restart after making sure that the light is off. Continuous use while the light is on may cause damage to the engine. 4-3 5tg-9-12-1 4/30/05 11:15 am page 4-3.

  • Page 26

    Ebu00530 handlebar switches 1. Light switch “lights” 2. Engine stop switch “eng. Stop” 3. Start switch “start” ebu13741 light switch “lights” set the switch to the “lo” position to turn on the low beam and the taillight. Set the switch to the “hi” position to turn on the high beam and the taillight....

  • Page 27: Qwarning

    Ebu00620 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 th...

  • Page 28: Qwarning

    Ebu11590 speed limiter the speed limiter keeps the throttle from fully opening, even when the throttle lever is pushed to the maximum. Turning in the adjusting screw limits the maximum engine power available and decreases the maximum speed of the atv. 1. Locknut 2. Adjusting screw a. No more than 12...

  • Page 29

    Ebu00690 clutch lever the clutch lever is located on the left handlebar and the ignition circuit cut-off system is incorpo- rated in the clutch lever holder. Pull the clutch lever to the handlebar to disengage the clutch, and release the lever to engage the clutch. The lever should be pulled rapidly...

  • Page 30

    The brake lever is equipped with a position adjusting bolt. To adjust the distance between the brake lever and the handlebar grip, hold the lever away from the handlebar so it does not contact the adjusting bolt, loosen the locknut, turn the adjusting bolt, and then tighten the lock- nut. Ebu09890 b...

  • Page 31

    Ebu13870 parking brake lever use the parking brake when you have to start the engine or park the machine, especially on a slope. To apply the parking brake, move the parking brake lever in direction a. To release the parking brake, move the parking brake lever in direction b. 1. Parking brake lever ...

  • Page 32: Qwarning

    Ebu00820 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 and is used in com- bination with the clutch when shifting. 1. Shift pedal 4-10 potential hazard improper use of the parking brake. What can happen the a...

  • Page 33

    Ebu00920 fuel tank cap remove the fuel tank cap by turning it counter- clockwise. 1. Fuel tank cap ebu00930 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 t...

  • Page 34

    Ebu00950 starter (choke) “ 1” 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” for proper oper- ation...

  • Page 35

    Ebu16020 seat to remove the seat, insert your hand between the rear of the seat and the rear fender, pull the seat lock lever, and then 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 sea...

  • Page 36: Qwarning

    Ebu13882 front shock absorber adjustment the spring preload, rebound damping and com- pression damping forces of the front shock absorbers can be adjusted to suit the rider’s weight and the riding conditions. Adjust the spring preload as follows. 1. Loosen the locknut. 2. Turn the adjusting nut in d...

  • Page 37

    Note: a special wrench can be obtained at a yamaha dealer to make this adjustment. 3. The length of the spring (installed) changes 1.5 mm (0.06 in) per turn of the adjusting nut. A. Spring length 4. Tighten the locknut to the specified torque. C c always tighten the locknut against the adjusting nut...

  • Page 38

    Adjust the rebound damping force as follows. Turn the rebound damping force adjusting screw in direction a to increase the rebound damping force and in direction b to decrease the rebound damping force. 1. Rebound damping force adjusting screw adjust the compression damping force as fol- lows. Turn ...

  • Page 39: Qwarning

    C c never turn an adjusting mechanism beyond the minimum and maximum settings. Note: although the total number of clicks of a damping force adjusting mechanism may not exactly match the above specifications due to small dif- ferences in production, the actual number of clicks always represents the e...

  • Page 40: Qwarning

    Ebu13891 rear shock absorber adjustment the spring preload, rebound damping and com- pression damping forces of the rear shock absorber can be adjusted to suit the rider’s weight and the riding conditions. Adjust the spring preload as follows. 1. Remove the seat. (see page 4-13 for seat removal and ...

  • Page 41

    3. Disconnect the hose, and then remove the air filter case by removing the bolts. 1. Hose 1. Bolt ( × 4) 2. Air filter case 4-19 5tg-9-12-1 4/30/05 11:15 am page 4-19.

  • Page 42

    4. Loosen the locknut. 5. Turn the adjusting nut in direction a to increase the spring preload and in direction b to decrease the spring preload. 1. Spring preload adjusting nut 2. Locknut 3. Special wrench note: a special wrench can be obtained at a yamaha dealer to make this adjustment. 6. The len...

  • Page 43

    C c always tighten the locknut against the adjusting nut and tighten it to the specified torque. 8. Place the air filter case in the original posi- tion, connect the air intake duct, and then tighten the clamp screw at the carburetor side. 9. Install the bolts, and then connect the hose. 10. Install...

  • Page 44

    Adjust the compression damping force as fol- lows. 1. Remove the seat. (see page 4-13 for seat removal and installation procedures.) 2. Turn the compression damping force adjust- ing screw in direction a to increase the compression damping force and in direction b to decrease the compression damping...

  • Page 45: Qwarning

    Ebu01120 w indicates a potential hazard that could result in serious injury or death. 4-23 potential hazard suspension components become hot dur- ing operation. What can happen you could be burned. How to avoid the hazard never touch the compression damping force adjuster, rebound damping force adju...

  • Page 46: Pre-Operation Checks

    5-1 pre-operation checks before using this machine, check the following points: item routine page front brake 9 check operation, free play, fluid level and fluid leakage. 5-3–5-4 9 fill with dot 4 brake fluid if necessary. 8-32–8-37 rear brake 9 check operation, free play, fluid level and fluid leak...

  • Page 47: Qwarning

    5-2 potential hazard failure to inspect the atv before operat- ing. 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 operating condi...

  • Page 48

    Ebu11660 front and rear brakes brake lever and brake pedal 8 check that there is no free play in the brake lever. If there is free play, have a yamaha dealer inspect the brake system. 8 check for correct brake pedal height. (see page 8-38.) if the pedal height is incorrect, have a yamaha dealer adju...

  • Page 49: Qwarning

    5-4 ebu15130 fuel make sure there is sufficient gasoline in the tank. C c use only unleaded gasoline. The use of lead- ed gasoline will cause severe damage to internal engine parts, such as the valves and piston rings, as well as to the exhaust sys- tem. Potential hazard riding with improperly opera...

  • Page 50

    Your yamaha engine has been designed to use premium unleaded gasoline with a pump octane number ([r+m]/2) of 91 or higher, or research octane number of 97 or higher. If knocking or pinging occurs, use a different brand of gaso- line. Unleaded fuel will give you longer spark plug life and reduced mai...

  • Page 51: Qwarning

    Ebu10842 engine oil make sure the engine oil is at the specified level. Add oil as necessary. (see page 8-9.) c c 8 in order to prevent clutch slippage (since the engine oil also lubricates the clutch), do not mix any chemical additives. Do not use oils with a diesel specification of “cd” or oils of...

  • Page 52: Qwarning

    Ebu12530 coolant check the coolant level in the coolant reservoir when the engine is cold. (the coolant level will vary with engine temperature.) the coolant level is satisfactory if it is between the minimum and maximum level marks on the coolant reservoir. If the coolant level is at or below the m...

  • Page 53: Qwarning

    Ebu04980 chain check the general condition of the chain and check the chain slack before every ride. Lubricate and adjust the chain as necessary. (see pages 8-43–8-46 for details.) ebu10830 throttle lever check to see that the throttle lever operates cor- rectly. It must open smoothly and spring bac...

  • Page 54

    Ebu01590 how to measure tire pressure use the low-pressure tire gauge. Note: the low-pressure tire gauge is included as stan- dard equipment. Make two measurements of the tire pressure and use the second reading. Dust or dirt in the gauge could cause the first reading to be incorrect. Set pressure w...

  • Page 55

    1. Low-pressure tire gauge ebu01600 tire wear limit when the tire groove decreases to 3 mm (0.12 in) due to wear, replace the tire. A. Tire wear limit 5-10 a 5tg-9-12-1 4/30/05 11:15 am page 5-10

  • Page 56

    Ebu11620 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. Ebu10030 lights check the headlights and tail/brake light to make sure they are in working con...

  • Page 57: Operation

    Ebu01610 operation w indicates a potential hazard that could result in serious injury or death. Ebu13911 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. 6-1 po...

  • Page 58

    Note: this model is equipped with an ignition circuit cut-off system. The engine can be started under the following conditions. 8 when the transmission is in neutral. At this time the neutral indicator light should come on. If the light does not come on, ask a yamaha dealer to inspect it. 8 when the...

  • Page 59

    Note: if the engine fails to start, release the start switch, then push it again. Pause a few seconds before the next attempt. Each cranking should be as short as possible to preserve battery ener- gy. Do not crank the engine more than 10 sec- onds on each attempt. 7. If the engine is started with t...

  • Page 60

    Ebu01800 starting a warm engine to start a warm engine, refer to the “starting a cold engine” section. The starter (choke) should not be used. The throttle should be opened slightly. Ebu01820 warming up to get maximum engine life, always warm up the engine before starting off. Never accelerate hard ...

  • Page 61

    C c 8 do not coast for long periods with the engine off, and do not tow the machine a long distance. Even in neutral position, the transmission is only properly lubricated when the engine is running. Inadequate lubrication may cause damage. 8 always use the clutch when changing gears. The engine, tr...

  • Page 62: Qwarning

    Ebu14190 to start out and accelerate: 1. Release the throttle lever, and then release the parking brake. C c always close the throttle while shifting gears. Otherwise, damage to the engine and drive train may result. 2. Pull the clutch lever to disengage the clutch. 3. Shift into first gear. 4. Open...

  • Page 63: Qwarning

    Ebu02070 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 l...

  • Page 64

    Each full throttle acceleration sequence should be followed with a substantial rest period for the engine by cruising at lower r/min so the engine can rid itself of the temporary build up of heat. If any abnormality is noticed during this period, consult a yamaha dealer. 0-10 hours: avoid continuous...

  • Page 65: Qwarning

    Ebu14200 parking on a slope 1. Bring the machine to a stop by applying the front brake. 2. With the front and rear brake applied, pull the clutch lever, shift into the neutral posi- tion, and then apply the parking brake. 3. Stop the engine by setting the engine stop switch to “off”. 4. With the fro...

  • Page 66

    Ebu02210 accessories and loading ebu02220 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. 8 choose only accessories designed for your atv. Your yamaha dealer has a variety of ...

  • Page 67

    Ebu05840 loading as originally equipped, this atv is not designed to carry cargo or tow a trailer. If you choose to add accessories so that you can carry cargo or tow a trailer, you must use common sense and good judgment. Keep the following points in mind: 8 never exceed the weight limits shown. An...

  • Page 68: Qwarning

    Ebu13552 w indicates a potential hazard that could result in serious injury or death. 6-12 potential hazard overloading this atv or carrying or tow- ing cargo improperly. What can happen could cause changes in vehicle handling which could lead to an accident. How to avoid the hazard never exceed the...

  • Page 69: Riding

    Riding your atv 7 7-1 5tg-9-12-2 5/12/05 4:05 pm page 7-1.

  • Page 70

    Getting to know your atv this atv is intended for recreational use by experienced operators only. Even though you are an experienced operator of all other all terrain vehicles or motorcycles, rid- ing the atv requires special skills acquired through practice. Take your time to fully learn techniques...

  • Page 71: Qwarning

    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 experienced operator. Do not attempt to operate at maximum perfor- mance until you are totall...

  • Page 72: Qwarning

    7-5 not recommended for children under 16 years of age. Potential hazard failure to follow the age recommendations for this atv. What can happen use by children of atvs that are not rec- ommended for their age can lead to severe injury or death of the child. How to avoid the hazard a child under 16 ...

  • Page 73: Qwarning

    7-6 this atv is designed to carry operator only - passengers prohibited. Potential hazard carrying a passenger on this atv. What can happen greatly reduces your ability to balance and control this atv. Could cause an acci- dent, resulting in harm to you and/or your passenger. How to avoid the hazard...

  • Page 74: Qwarning

    Apparel 7-7 potential hazard operating this atv without wearing an approved motorcycle helmet, eye protec- tion 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 accident. Operating with...

  • Page 75: Qwarning

    7-8 do not operate after consuming alcohol or drugs. Operator’s performance capability is reduced by the influence of alcohol or drugs. Potential hazard operating this atv after consuming alco- hol or drugs. What can happen could seriously affect your judgment. Could cause you to react more slowly. ...

  • Page 76: Qwarning

    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 atv. Potential hazard failure to inspect the atv before operat- ing. Failure to properly maintain the atv. What can happen increases the possibility of an accident or e...

  • Page 77: Qwarning

    W 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 limit...

  • Page 78: Qwarning

    Loading and accessories as originally equipped, this atv is not designed to carry cargo or tow a trailer. If you choose to add accessories so that you can carry cargo or tow a trailer, you must use common sense and good judgment. Use extra caution when riding the atv with additional loads, such as a...

  • Page 79: Qwarning

    7-12 during operation always keep your feet on the footboards during operation. Otherwise your feet may contact the rear wheels. 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...

  • Page 80: Qwarning

    7-13 avoid wheelies and jumping. You may lose con- trol of the atv or overturn. 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 tr...

  • Page 81: Qwarning

    7-14 modifications potential hazard operating this atv with improper modifi- cations. What can happen improper installation of accessories or modification of this vehicle may cause changes in handling which in some situa- tions could lead to an accident. How to avoid the hazard never modify this atv...

  • Page 82: Qwarning

    Exhaust system the exhaust system on the atv is very hot dur- ing 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. 7-15 potential hazard hot exhaust system. What can happen dry grass or bru...

  • Page 83: Qwarning

    7-16 be careful where you ride this atv is designed for off-road use only. Riding on paved surfaces can cause loss of con- trol. Potential hazard operating this atv on paved surfaces. What can happen atvs are designed for off-road use only. Paved surfaces may seriously affect han- dling and control ...

  • Page 84: Qwarning

    7-17 do not ride on any public road, street, or high- way. Riding on public roads can result in collisions with other vehicles. 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 a...

  • Page 85: Qwarning

    7-18 know the terrain where you ride. Ride cautiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and other hidden haz- ards which may cause the atv to upset. Potential hazard failure to use extra care when operating this atv on unfamiliar terrain. What can happen you ...

  • Page 86: Qwarning

    7-19 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, slip...

  • Page 87: Qwarning

    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 per- mission. Potential hazard o...

  • Page 88

    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 r...

  • Page 89: Qwarning

    C c 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...

  • Page 90: Qwarning

    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 tu...

  • Page 91

    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 slip- pery or ...

  • Page 92: Qwarning

    7-25 climbing uphill use proper riding techniques to avoid vehicle overturns on hills. Be sure that you can maneu- ver your atv well on flat ground before attempt- ing any incline and then practice riding first on gentle slopes. Try more difficult climbs only after you have developed your skill. In ...

  • Page 93: Qwarning

    7-26 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. ...

  • Page 94: Qwarning

    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. Potential hazard improperly crossing hills or turning on h...

  • Page 95: Qwarning

    If your atv has stalled or stopped and you believe you can continue up the hill, restart care- fully 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...

  • Page 96

    7-29 when fully stopped, apply the rear brake as well, and then lock the parking brake. Dismount on uphill side or to a side if pointed straight uphill. Turn the atv around and remount, following the proce- dure described in the owner’s manual. 5tg-9-12-2 5/12/05 4:05 pm page 7-29.

  • Page 97: Qwarning

    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. Improper braking may ca...

  • Page 98

    7-31 5tg-9-12-2 5/12/05 4:05 pm page 7-31.

  • Page 99: Qwarning

    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 ter...

  • Page 100

    7-33 shift your weight to the uphill side of the atv. 5tg-9-12-2 5/12/05 4:05 pm page 7-33.

  • Page 101: Qwarning

    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 water, choose your path carefully. Enter where there is no sharp drop off, and avoid rocks or other obstacles which may be slippery or ups...

  • Page 102

    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. C c 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 fre...

  • Page 103: Qwarning

    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. Avoid jumping the atv as loss of control an...

  • Page 104

    7-38 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, positioning your weight over the fr...

  • Page 105: Qwarning

    7-39 with practice, over a period of time, skill at con- trolled 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 maneu- vers should always be avoided on extremely slippery surfa...

  • Page 106

    7-40 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 ... 8 if your atv doesn’t turn when you want it to: bring the atv to a stop and practice the turn- ing maneuvers again. Be sure you are putting your ...

  • Page 107

    7-41 8 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 goin...

  • Page 108: Periodic Maintenance and

    8-1 ebu05150 periodic maintenance and adjustment periodic inspection, adjustment and lubrication will keep your machine in the safest and most efficient condition possible. Safety is an obliga- tion of the machine owner. The most important points of machine inspection, adjustment and lubrication are...

  • Page 109: Qwarning

    8-2 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. The tools provided in the owner’s tool kit are suffi- cient for this purpose, except that a torque wrench is als...

  • Page 110

    8-3 initial every month 1 3 6 6 12 item routine whichever km 320 1300 2500 2500 5000 comes first (mi) (200) (800) (1600) (1600) (3200) hours 20 80 160 160 320 fuel line* 9 check fuel hose for cracks or damage. 2 2 2 9 replace if necessary. 9 check condition. Spark plug 9 adjust gap and clean. 2 2 2 ...

  • Page 111

    Ebu15720 general maintenance and lubrication chart 8-4 initial every month 1 3 6 6 12 item routine whichever km 320 1300 2500 2500 5000 comes first (mi) (200) (800) (1600) (1600) (3200) hours 20 80 160 160 320 air filter element 9 clean. Every 20–40 hours 9 replace if necessary. (more often in wet o...

  • Page 112

    8-5 initial every month 1 3 6 6 12 item routine whichever km 320 1300 2500 2500 5000 comes first (mi) (200) (800) (1600) (1600) (3200) hours 20 80 160 160 320 9 check operation. Steering system* 9 repair if damaged. 2 2 2 2 2 9 check toe-in. 9 adjust if necessary. Engine oil 9 replace (warm engine b...

  • Page 113

    8-6 w indicates a potential hazard that could result in serious injury or death. Note: 8 recommended brake fluid: dot 4 8 brake fluid replacement: 9 when disassembling the master cylinder or caliper cylinder, replace the brake fluid. Normally check the brake fluid level and add the fluid as required...

  • Page 114

    Ebu08070 panel removal and installation 1. Panel a the panel illustrated needs to be removed to perform some of the maintenance described in this chapter. Refer to this section each time the panel has to be removed or installed. Ebu13921 panel a to remove 1. Remove the seat. (see page 4-13 for seat ...

  • Page 115

    1. Bolt ( × 2) to install 1. Place the panel in the original position, and then install the quick fastener screw and the bolts. 1. Projection ( × 2) 2. Slot ( × 5) 2. Install the seat. 8-8 5tg-9-12-3 5/13/05 4:13 pm page 8-8.

  • Page 116

    Ebu13932 engine oil and oil filter element the engine oil level should be checked before each ride. In addition, the oil must be changed and the oil filter element replaced at the intervals specified in the periodic maintenance and lubri- cation chart. To check the engine oil level 1. Place the atv ...

  • Page 117

    4. If the engine oil is below the minimum level mark, add sufficient oil of the recommend- ed type through the engine oil tank filler hole to raise it to the correct level. Note: when adding oil, be careful not to overfill the engine oil tank; the oil level rises faster starting from the half-level-...

  • Page 118

    8-11 4. Remove the engine oil filler cap and the crankcase engine oil drain bolt. 1. Crankcase engine oil drain bolt 5. Remove the engine oil tank filler cap and the engine oil tank drain bolt. 1. Engine oil tank drain bolt 6. Check the washers for damage, and replace if necessary. 5tg-9-12-3 5/13/0...

  • Page 119

    Note: skip steps 7–10 if the oil filter element is not being replaced. 7. Remove the oil filter element cover by removing the bolts, and then remove the oil filter element. 1. Oil filter element cover 2. Bolt ( × 3) 8. Check the o-rings for damage, and replace them if necessary. 1. Oil filter elemen...

  • Page 120

    8-13 11. Install the crankcase engine oil drain bolt and the engine oil tank drain bolt, and then tighten them to the specified torques. 12. Pour the specified amount of recommend- ed engine oil through the engine oil tank filler hole, insert the dipstick, and then tighten the engine oil tank filler...

  • Page 121

    C c 8 in order to prevent clutch slippage (since the engine oil also lubricates the clutch), do not mix any chemical additives. Do not use oils with a diesel specification of “cd” or oils of a higher quality than specified. In addition, do not use oils labeled “energy conserving ii” or higher. 8 mak...

  • Page 122

    8-15 ebu10151 cooling system 1. Check the coolant level in the coolant reservoir when the engine is cold as the coolant level will vary with engine tempera- ture. Note: the coolant should be between the minimum and maximum level marks. 1. Maximum level mark 2. Minimum level mark 3. Coolant reservoir...

  • Page 123: Qwarning

    Ebu13940 changing the coolant 1. Place the atv on a level surface. 2. Remove panel a. (see page 8-7 for panel removal and installation procedures.) 3. Place a container under the engine, and then remove the coolant drain bolt. (use a trough or a similar object as shown.) 1. Coolant drain bolt 2. Tro...

  • Page 124

    4. Remove the radiator cap. 1. Radiator cap 5. Remove the coolant reservoir by removing the bolts. 6. Remove the coolant reservoir cap, and then turn the coolant reservoir upside down to empty it. 1. Coolant reservoir cap 2. Coolant reservoir 3. Bolt ( × 2) 7. After draining the coolant, thoroughly ...

  • Page 125

    8-18 9. Replace the coolant drain bolt washer if it is damaged, install the coolant drain bolt, and then tighten it to the specified torque. 10. Pour the recommended coolant into the radiator until it is full. 11. Pour the recommended coolant into the coolant reservoir to the maximum level mark. C c...

  • Page 126

    13. Start the engine and let it idle for several minutes. Stop the engine, and then check the coolant level in the radiator. If it is low, add more coolant until it reaches the top of the radiator. 14. Check the coolant level in the reservoir. If it is low, add coolant to the maximum level mark. 15....

  • Page 127: Qwarning

    8-20 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 removing the fuel tank cap. Do not remove the fuel tank cap immedi- ately after the engine has been running and is still very ...

  • Page 128

    4. Pull the panel backward, and then remove the panel. 5. Install the fuel tank cap by turning it clock- wise. 6. Remove the bolt, lift the rear of the fuel tank, and then tilt it back. 1. Bolt 7. Remove the spark plug cap. 1. Spark plug cap 8-21 5tg-9-12-3 5/13/05 4:13 pm page 8-21.

  • Page 129

    8. Use the spark plug wrench in the owner’s tool kit to remove the spark plug as shown. 1. Spark plug wrench 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. The ideal color on the white ins...

  • Page 130

    Installation 1. Measure the electrode gap with a wire thickness gauge and, if necessary, adjust the gap to specification. A. Spark plug gap 2. Clean the surface of the spark plug gasket and its mating surface, and then wipe off any grime from the spark plug threads. 3. Install the spark plug and tig...

  • Page 131

    4. Install the spark plug cap. C c do not use any tools to remove or install the spark plug cap, otherwise the ignition coil coupler may be damaged. The spark plug cap may be difficult to remove because the rubber seal on the end of the cap fits tightly. To remove the spark plug cap, simply twist it...

  • Page 132

    Ebu13961 air filter element cleaning note: there is a check hose at the bottom of the air fil- ter 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. (see page 4-13 for seat removal and installation pro...

  • Page 133: Qwarning

    8-26 1. Wing bolt 2. Air filter element 4. Remove the air filter element from its frame. 1. Air filter element 2. Frame 5. Wash the air filter element gently but thor- oughly in solvent. 6. Squeeze the excess solvent out of the air filter element and let it dry. C c do not twist the air filter eleme...

  • Page 134

    8-27 8. Apply yamaha foam air filter oil or other quality foam air filter oil to the air filter ele- ment. Note: the air filter element should be wet but not drip- ping. 9. Pull the air filter element over its frame. 10. Install the air filter element by installing the wing bolt. 11. Install the air...

  • Page 135

    8-28 ebu13633 spark arrester cleaning select a well-ventilated area free of combustible materials and make sure the exhaust and muf- fler are cool. 1. Remove the bolt. 1. Bolt 2. Remove the tailpipe by pulling it out of the muffler. 3. Tap the tailpipe lightly, then use a wire brush to remove any ca...

  • Page 136

    4. Insert the tailpipe into the muffler and align the bolt holes. 5. Install the bolt and tighten it. 6. Remove the purging bolt. 1. Purging bolt 7. Start the engine and rev it up approximate- ly twenty times while momentarily creating exhaust system back pressure by blocking the end of the muffler ...

  • Page 137: Qwarning

    Ebu02960 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 per- formed by the owner as a part of ...

  • Page 138

    Ebu13970 idle speed adjustment a special tester is needed to check the engine r/min on this model. Therefore, take the atv to a yamaha dealer to have the idle speed adjusted. Ebu03030 valve clearance adjustment the correct valve clearance changes with use, resulting in improper fuel/air supply or en...

  • Page 139

    Ebu03070 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 2–4 mm (0.08–0.16 in). 3. Tighten the locknut. 1. Locknut 2. Adjusting bolt a. Throttle lever...

  • Page 140

    Note: the wheels need to be removed to inspect the brake pads. (see page 8-51–8-52 for wheel removal and installation procedures.) ebu13990 rear brake pad inspection each brake pad is provided with a wear indicator groove. The indicator grooves allow checking of brake pad wear without disassembling ...

  • Page 141

    8-34 ebu16070 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 minimum level mark and replenish if neces- sary. A low brake fluid level may indicate worn...

  • Page 142

    8-35 note: 8 to access the rear brake fluid reservoir cap, remove the seat (see page 4-13), remove the rear brake fluid reservoir bracket bolt, and then pull the rear brake fluid reservoir out to the side as shown. 8 when installing the rear brake fluid reservoir, make sure the projection on the rea...

  • Page 143

    8 use only the designated quality brake fluid, otherwise, the rubber seals may deteriorate, causing leakage and poor brake performance. 8 refill with the same type of brake fluid. Mixing fluids may result in a harmful chemical reac- tion and lead to poor brake performance. 8 be careful that water do...

  • Page 144: Qwarning

    Ebu11870 front brake lever free play the front brake lever should have a free play of zero mm (zero in) at the lever end. If not, have a yamaha dealer check the brake system. A. Brake lever free play 8-37 potential hazard operating with improperly serviced or adjusted brakes. What can happen you cou...

  • Page 145: Qwarning

    Ebu11910 brake pedal height adjustment the top of the brake pedal should be positioned 11.7 mm (0.46 in) below the top of the footrest. If not, have a yamaha dealer adjust it. A. Brake pedal position 8-38 potential hazard operating with improperly serviced or adjusted brakes. What can happen you cou...

  • Page 146

    8-39 ebu14000 parking brake adjustment parking brake adjustment may be required if the parking brake does not hold properly. The cable length “a” should be adjusted to 47–51mm (1.9–2.0 in). 1. Locknut 2. Adjusting bolt a. Cable length 1. Loosen the locknut and the adjusting nut on the brake cable be...

  • Page 147: Qwarning

    5. Screw in the adjusting bolt at the rear brake caliper by hand until it feels tight, then screw it out 1/8 turn. Tighten the lock- nut to the specified torque. C c when tightening the locknut, hold the adjust- ing bolt with a wrench so that the adjusting bolt does not turn together with the locknu...

  • Page 148

    Ebu08330 adjusting the rear brake light switch the rear brake light switch, which is activated by the brake pedal and brake lever, is properly adjusted when the brake light comes on just before braking takes effect. If necessary, adjust the brake light switch as follows. Turn the adjusting nut while...

  • Page 149

    If the specified free play cannot be obtained, proceed with the following steps. 2. Turn the adjusting nut at the clutch lever in direction a to loosen the cable. 3. Loosen the locknut at the crankcase side. 4. Turn the adjusting nut at the crankcase in direction a to increase the free play or in di...

  • Page 150

    Ebu11440 drive chain slack check note: move the atv back and forth and find the tight- est position of the drive chain. Check and/or adjust the chain slack while it is in this tightest position. To check the drive chain slack, all tires must be touching the ground and there should be no weight on it...

  • Page 151

    Ebu15752 adjusting the drive chain slack 1. Loosen the rear axle pinch bolts. 2. Insert a rod of a diameter of 8 mm and a length of 10 cm into one of the holes in the drive chain tensioner as shown. 1. Rear axle pinch bolt ( × 4) 2. Rod 3. Drive chain tensioner 4. Hole ( × 3) 3. Shift the transmissi...

  • Page 152: 3 1

    5. Tighten the rear axle pinch bolts in the order shown to the specified torque. Ebu08050 lubricating the drive chain the drive chain must be cleaned and lubricated at the intervals specified in the periodic mainte- nance and lubrication chart, otherwise it will quickly wear out, especially when rid...

  • Page 153

    1. Clean the drive chain with kerosene and a small soft brush. C c to prevent damaging the o-rings, do not clean the drive chain with steam cleaners, high-pressure washers or inappropriate sol- vents. 2. Wipe the drive chain dry. 3. Thoroughly lubricate the drive chain with a special o-ring chain lu...

  • Page 154: Qwarning

    Ebu03560 cable inspection and lubrication lubricate the inner cables and the cable ends. If the cables do not operate smoothly, ask a yamaha dealer to replace them. 8-47 potential hazard damaged control cables. What can happen corrosion can result when the outer cov- ering of control cables becomes ...

  • Page 155

    Ebu14020 brake pedal, brake lever and clutch lever lubrication lubricate the pivoting parts. 8-48 recommended lubricant: lithium-soap-based grease (all-purpose grease) 5tg-9-12-3 5/13/05 4:13 pm page 8-48.

  • Page 156

    Ebu10180 front upper and lower arm pivot lubrication lubricate the upper and lower arm pivots. 1. Upper grease nipple 2. Lower grease nipple ( ×2) 1. Upper grease nipple 2. Lower grease nipple ( ×2) 8-49 recommended lubricant: lithium-soap-based grease right side left side 5tg-9-12-3 5/13/05 4:13 pm...

  • Page 157

    8-50 ebu10190 rear arm pivot lubrication lubricate the rear arm pivot. Recommended lubricant: lithium-soap-based grease 5tg-9-12-3 5/13/05 4:13 pm page 8-50

  • Page 158

    Ebu11120 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. 1. Nut ( ×4) 1. Nut ( ×4) 8-51 front rear 5tg-9-12-3 5/13/05 4:13 pm page 8-51.

  • Page 159

    8-52 ebu07390 wheel installation when installing the wheel, reverse the removal procedure. Note: the arrow mark on the tire must point toward the rotating direction of the wheel. 1. Arrow mark tighten the wheel nuts to the specified torque. Wheel nut torque: front: 45 nm (4.5 m 0kgf, 33 ft0lbf) rear...

  • Page 160: Qwarning

    Ebu03800 battery this machine is equipped with a sealed-type battery. Therefore it is not necessary to check the electrolyte or add distilled water in the bat- tery. If the battery seems to have discharged, consult a yamaha dealer. C c do not try to remove the sealing caps of the battery cells. You ...

  • Page 161

    Ebu03850 battery maintenance 1. When the machine is not used for a month or longer, remove the battery and store it in a cool, dark place. Completely recharge the battery before reinstallation. C c a special battery charger (constant voltage/ampere or constant voltage) is required for recharging a s...

  • Page 162: Qwarning

    Ebu03900 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. Fuse 2. Spare fuse c c to prevent acci...

  • Page 163

    Ebu14040 replacing a headlight bulb if a headlight bulb burns out, replace it as fol- lows. 1. Remove the headlight assembly by remov- ing the bolts. 1. Headlight assembly 2. Bolt ( ×2) 2. Disconnect the headlight coupler. 3. Remove the headlight bulb holder cover. 1. Headlight bulb holder cover 2. ...

  • Page 164: Qwarning

    4. Push the headlight bulb holder in and turn it counterclockwise to remove. 1. Headlight bulb holder 5. Remove the defective bulb and replace it with a new bulb. 8-57 potential hazard a headlight bulb is hot when it is on and immediately after it is turned off. What can happen you can be burned, or...

  • Page 165

    1. Do not touch the glass part of the bulb. C c do not touch the glass part of the headlight bulb to keep it free from oil, otherwise the transparency of the glass, the luminosity of the bulb, and the bulb life will be adversely affected. Thoroughly clean off any dirt and fingerprints on the headlig...

  • Page 166

    Ebu14050 headlight beam adjustment c c it is advisable to have a yamaha dealer make this adjustment. To raise the beam, turn the adjusting bolt in direction a. To lower the beam, turn the adjusting bolt in direction b. 1. Headlight beam adjusting bolt ebu15852 tail/brake light this model is equipped...

  • Page 167: Qwarning

    Ebu04120 troubleshooting although yamaha machines receive a rigid inspection before shipment from the factory, trouble may occur during operation. Any prob- lem in the fuel, compression, or ignition systems can cause poor starting and loss of power. The troubleshooting chart describes a quick, easy ...

  • Page 168

    8-61 ebu08061 troubleshooting charts starting problems or poor engine performance 2. Compression use the electric starter to see if there is compression. 3. Ignition remove the spark plug and check the electrodes. Wet wipe clean with dry cloth. Dry attach spark plug cap and ground to chassis. Use th...

  • Page 169: Qwarning

    8-62 engine overheating note: if it is difficult to get the recommended coolant, tap water can be temporarily used, provided that it is changed to the recommended coolant as soon as possible. Potential hazard removing the radiator cap when the engine and radiator are still hot. What can happen you c...

  • Page 170: Cleaning and Storage

    Ebu04170 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...

  • Page 171: Qwarning

    7. Clean the seat with a vinyl upholstery cleaner to keep the cover pliable and glossy. 8. 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. When finished, start the engi...

  • Page 172

    Ebu05250 b. Storage long term storage (60 days or more) of your machine will require some preventive proce- dures to guard against deterioration. After thor- oughly cleaning the machine, prepare for stor- age as follows: 1. Fill the fuel tank with fresh fuel and add the specified amount of yamaha fu...

  • Page 173

    8. 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. 9-4 5tg-9-12-3 5/13/05 4:13 pm pa...

  • Page 174: Specifications

    Ebu04280 specifications 10-1 model yfz450v dimension: overall length 1,840 mm ( 72.4 in) overall width 1,170 mm ( 46.1 in) overall height 1,090 mm ( 42.9 in) seat height 810 mm ( 31.9 in) wheel base 1,280 mm ( 50.4 in) ground clearance 255 mm ( 10.04 in) minimum turning radius: 3,500 mm (137.8 in) b...

  • Page 175

    10-2 model yfz450v engine oil: type recommended engine oil classification: api service se, sf, sg type or higher c c in order to prevent clutch slippage (since the engine oil also lubricates the clutch), do not mix any chemical additives. Do not use oils with a diesel specification of “cd” or oils o...

  • Page 176

    10-3 model yfz450v cooling system: radiator capacity (including all routes) 1.30 l (1.14 imp qt, 1.37 us qt) coolant reservoir capacity (up to the maximum level mark) 0.29 l (0.26 imp qt, 0.31 us qt) air filter: wet type element fuel: type premium unleaded gasoline only tank capacity 10.0 l (2.20 im...

  • Page 177

    10-4 model yfz450v transmission: primary reduction system spur gear primary reduction ratio 62/22 (2.818) secondary reduction system chain drive secondary reduction ratio 38/14 (2.714) transmission type constant mesh 5-speed operation left foot operation gear ratio 1st 29/12 (2.416) 2nd 27/14 (1.928...

  • Page 178

    10-5 model yfz450v brake: front brake type dual disc brake operation right hand operation rear brake type single disc brake operation right foot operation suspension: front suspension double wishbone rear suspension swingarm (link suspension) shock absorber: front shock absorber coil spring/gas-oil ...

  • Page 179

    10-6 model yfz450v bulb voltage, wattage × quantity: headlight 12v, 30w/30w × 2 tail/brake light led indicator/warning light neutral 12v, 1.7w × 1 coolant temperature 12v, 1.7w × 1 fuses: main 15.0 a 5tg-9-12-3 5/13/05 4:13 pm page 10-6.

  • Page 180: Noise Regulation

    Ebu13640 noise regulation tampering with noise control system prohibited: federal law prohibits the following acts or the causing thereof: (1) the removal or rendering inopera- tive by any person other than for purposes of maintenance, repair, or replacement of any device or element of design incorp...

  • Page 181: Maintenance Record

    12-1 ebu15740 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 pr...

  • Page 182

    Ebu13680 13-1 5tg-9-12-3 5/13/05 4:13 pm page 13-1.

  • Page 183

    13-2 13 5tg-9-12-3 5/13/05 4:13 pm page 13-2.

  • Page 184

    Ebu13700 14-1 5tg-9-12-3 5/13/05 4:13 pm page 14-1.

  • Page 185

    14-2 14 5tg-9-12-3 5/13/05 4:13 pm page 14-2.

  • Page 186

    Eebu04360 w indicates a potential hazard that could result in serious injury or death. 5tg-9-12-3 5/13/05 4:13 pm page 14-3.

  • Page 187

    Ebu13710 5tg-9-12-3 5/13/05 4:13 pm page 14-5.

  • Page 188: Warning

    Printed in japan 2005.5-4.9x1 ! (e) improper atv use can result in severe injury or death. Q warning always use an approved helmet and protective gear never use on public roads never carry passengers never use with drugs or alcohol never operate: 9 without proper training or instruction. 9 at speeds...

  • Page 189: Read    Carefull

    Dear new yamaha atv owner: congratulations on the purchase of your new yamaha atv. You have purchased a quality yamaha product that, with proper use and care, will provide hours of riding pleasure. Before you operate your new atv, yamaha recommends these important points: 8 read your owner’s manual ...

  • Page 190

    No postage necessary if mailed in the united states first class permit no. 4 cypress, ca postage will be paid by addressee yamaha motor corporation u.S.A. P.O. Box 6555 cypress, california 90630-9989 attn: sales administration atv card for us 4/2/03 9:06 am page 2.