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Yamaha Ultramatic GRIZZLY 660 Owner's Manual

Other manuals for Ultramatic GRIZZLY 660: Owner's Manual, Owner's Manual

Summary of Ultramatic GRIZZLY 660

  • Page 1

    5km-28199-11 lit-11626-16-34 read this manual carefully! It contains important safety information. This atv should not be ridden by anyone under 16 years of age. Warning yfm660fr owner’s manual printed in japan 2002.06-7.8 ×1 cr (e) printed on recycled paper yamaha motor co., ltd. Ebu00438 locate an...

  • Page 2

    Ebu00776.

  • Page 3: Introduction

    Ebu00941 1- introduction congratulations on your purchase of the yamaha yfm660f. It represents the result of many years of yamaha experience in the production of fine sporting, touring, and pace-setting racing machines. With the purchase of this yamaha, you can now appreciate the high degree of craf...

  • Page 4: Important Manual Information

    Ebu00801 1- important manual information failure to follow the warnings contained in this manual can result in serious injury or death. Particularly important information is distinguished in this manual by the following notations: the safety alert symbol means attention! Become alert! Your safety is...

  • Page 5: Important Notice

    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 regula...

  • Page 6: Contents

    Ebu00014 warning 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 identification ............................. 3-1 identification number rec...

  • Page 7

    Pre-operation checks ........... 5-1 front and rear brakes ..................... 5-2 fuel ................................................. 5-4 engine oil ........................................ 5-6 final gear oil.................................... 5-7 differential gear oil ..........................

  • Page 8

    Periodic maintenance and adjustment.................................. 8-1 owner’s manual and tool kit............ 8-1 periodic maintenance/lubrication .... 8-3 panel removal and installation ........ 8-5 engine oil....................................... 8-12 final gear oil .............................

  • 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 warranty ...........

  • Page 10: Location of The Warning and

    1-1 ebu00464 location of the warning and specification labels u5km11.Book page 1 thursday, june 27, 2002 3:58 pm.

  • Page 11

    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 yo...

  • Page 12

    1-3 5 6 7 u5km11.Book page 3 thursday, june 27, 2002 3:58 pm.

  • Page 13: Under

    1-4 8 9 0 under warning 5fe-21697-01 never operate this atv if you are under age 16. Operating this atv if you are under the age of 16 increases your chance of severe injury or death. Warning turning the atv in 4wd-lock(“diff. Lock”) takes more effort. Operate at a slow speed and allow extra time an...

  • Page 14: Safety Information

    2-1 safety information ebu01129 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 f...

  • Page 15

    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 op...

  • Page 16

    2-3 ● always follow proper procedures for climbing hills as described in this manual. Check the ter- rain carefully before you start up any hill. Never climb hills with excessively slippery or loose surfaces. Shift your weight forward. Never open the throttle suddenly. Never go over the top of a hil...

  • Page 17

    2-4 ● always check for obstacles before operating in a new area. Never attempt to operate over large obstacles, such as large rocks or fallen trees. Always follow proper procedures when op- erating over obstacles as described in this manual. ● always be careful when skidding or sliding. Learn to saf...

  • Page 18

    2-5 warning potential hazard improper handling of gasoline. What can happen gasoline can catch fire and you could be burned. How to avoid the hazard always turn off the engine when refuel- ing. Do not refuel right after the engine has been running and is still very hot. Do not spill gasoline on the ...

  • Page 19

    2-6 warning potential hazard starting or running the engine in a closed area. What can happen exhaust fumes are poisonous and may cause loss of consciousness and death within a short time. How to avoid the hazard always operate your atv in an area with adequate ventilation. U5km11.Book page 6 thursd...

  • Page 20

    3-1 ebu00032 description and machine identification 1. Rear shock absorber spring preload adjusting ring 2. Storage compartment and tool kit 3. Air filter case 4. Front brake fluid reservoir 5. Front shock absorber spring preload adjusting ring 6. Rear brake fluid reservoir 7. Rear brake pedal 8. V-...

  • Page 21

    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 s...

  • Page 22

    3-3 ebu00036 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. Ebu00787 model label the model label is affixed to the location in the illustration. Reco...

  • Page 23: Control Functions

    4-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ebu00039 control functions warning indicates a potential hazard that could result in serious injury or death. Ebu00942 main switch functions of the respective switch positions are as follows: on: the engine can be started only at this position and the headlights ...

  • Page 24

    4-2 ebu00802 indicator and warning lights 1. Differential gear lock indicator light “diff. Lock” 2. Low-range indicator light “l” 3. High-range indicator light “h” 4. Neutral indicator light “n” 5. Reverse indicator light “r” 6. Park indicator light “p” 7. Four-wheel-drive indicator “ ”/“ ” 8. Coola...

  • Page 25

    4-3 ebu00867 reverse indicator light “r” this indicator light comes on when the drive select lever is in the “r” reverse position. Note: if the indicator light flashes or the speedome- ter does not show the speed while riding, have a yamaha dealer check the speed sen- sor circuit. _ ebu00609 park in...

  • Page 26

    4-4 ebu00860 coolant temperature warning light “ ” when the coolant temperature reaches a specified level, this light comes on to warn that the coolant temperature is too hot. If the light comes on during operation, stop the en- gine as soon as it is safe to do so and allow the engine to cool down f...

  • Page 27

    4-5 ebu01132 speedometer unit 1. Speedometer 2. Odometer/tripmeter a/tripmeter b 3. Clock/hour meter 4. Trip/odo button 5. Clock/hour “ ”/“ ” button 6. “h” button 7. “m” button the speedometer unit is equipped with the following: ● a speedometer (which shows the riding speed) ● an odometer (which sh...

  • Page 28

    4-6 clock mode pushing the “ ”/“ ” button for at least two seconds switches the display between the clock mode “clock” and the hour meter mode “hour” in the following order. Clock →hour→clock to set the clock 1. Push the “ ”/“ ” button until the clock starts flashing. 2. Set the hours by pushing the...

  • Page 29

    4-7 ebu00053 handlebar switches 1. Light switch “ / /off” 2. Engine stop switch “ ” / “ ” 3. Start switch “ ” ebu01058 light switch “ / /off” set the switch to the “ ” position to turn on the low beam and the tail/brake light. Set the switch to the “ ” position to turn on the high beam and the tail/...

  • Page 30

    4-8 ebu00607 start switch “ ” the starter motor cranks the engine when this switch is pushed. Caution: see starting instructions prior to starting the engine. (see page 6-1 for details.) 1. On-command four-wheel drive switch “2wd”/“4wd” 2. Differential gear lock switch “lock”/“4wd” ebu00842 on-comma...

  • Page 31

    4-9 ● four-wheel drive (4wd): power is supplied to the rear and front wheels. ● four-wheel drive with the differential gear locked (4wd-lock): power is supplied to the rear and front wheels when the differen- tial gear is locked (“diff.Lock”). Unlike the 4wd mode, all wheels turn at the same speed. ...

  • Page 32

    4-10 1. Lever 2. On-command four-wheel drive switch “2wd”/“4wd” on-command four-wheel drive switch “2wd”/“4wd” to change from 2wd to 4wd, stop the atv, and then set the switch to “4wd”. When the atv is in 4wd, the 4wd indicator “ ” will come on in the speedometer unit display. To change from 4wd to ...

  • Page 33

    4-11 note: _ ● when the switch is set to “lock”, the dif- ferential gear lock indicator light will flash until the differential gear is locked. ● when the indicator light is flashing, turn- ing the handlebar back and forth will help the differential gear lock to engage. ● riding before the different...

  • Page 34

    4-12 ebu00062 throttle lever once the engine is running, movement of the throttle lever will increase the engine speed. Regulate the speed of the machine by varying the throttle position. Because the throttle is spring-loaded, the machine will decelerate, and the engine will return to an idle any ti...

  • Page 35

    4-13 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. 1. Locknut 2. Adjusting screw a. 12 mm (0.47 ...

  • Page 36

    4-14 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...

  • Page 37

    4-15 ebu00608 drive select lever the drive select lever is used to shift your ma- chine into the low, high, neutral, reverse and park positions. (refer to page 6-4 for the drive select lever operation.) 1. Drive select lever u5km11.Book page 15 thursday, june 27, 2002 3:58 pm.

  • Page 38

    4-16 ebu00855 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 warning potential hazard starting the engine without setting the drive select lever to the park position “p...

  • Page 39

    4-17 ebu00092 fuel tank cap remove the fuel tank cap by turning it coun- terclockwise. 1. Fuel tank cap u5km11.Book page 17 thursday, june 27, 2002 3:58 pm.

  • Page 40

    4-18 ebu00093 fuel cock the fuel cock supplies fuel from the fuel tank to the carburetor. The fuel cock has three positions. Off: with the lever in this position fuel will not flow. Always turn the lever to this position when the engine is not running. On: with the lever in this position, fuel flows...

  • Page 41

    4-19 1. Arrow mark ebu00095 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” for ...

  • Page 42

    4-20 ebu00567 seat to remove the seat, pull the seat lock lever upward and pull up the seat at the rear. 1. Seat 2. Seat lock lever to install the seat, insert the projections on the front of the seat into the seat holders and push down on the seat at the rear. Note: make sure that the seat is secur...

  • Page 43

    4-21 ebu00858 storage compartment the storage compartment is located under the seat. (see page 4-20 for seat removal and installation procedures.) when storing the owner’s manual or other documents in the storage compartment, be sure to wrap them in a plastic bag so that they will not get wet. When ...

  • Page 44

    4-22 ebu01124 front and rear shock absorber adjustment the spring preload can be adjusted to suit the rider’s weight and riding conditions. Note: _ when adjusting the rear shock absorbers, the rear wheels need to be removed. (see page 8-45 for removal and installation procedures.) _ adjust the sprin...

  • Page 45

    4-23 1. Special wrench warning potential hazard improper shock absorber adjustment. What can happen uneven adjustment can cause poor handling and loss of stability, which could lead to an accident. How to avoid the hazard always adjust the shock absorbers on the left and right side to the same set- ...

  • Page 46

    4-24 ebu01002 auxiliary dc jack the auxiliary dc jack is located at the front right side of the atv. The auxiliary dc jack can be used for suitable work lights, radios, etc. The auxiliary dc jack should only be used when the engine is running. 1. Auxiliary dc jack cap 1. Set the light switch to “off...

  • Page 47

    4-25 4. When the auxiliary dc jack is not being used, cover it with the cap. Caution: _ ● do not use accessories requiring more than the above maximum capac- ity. This may overload the circuit and cause the fuse to blow. ● if accessories are used without the engine running or with the headlights tur...

  • Page 48

    U5km11.Book page 26 thursday, june 27, 2002 3:58 pm.

  • Page 49: Pre-Operation Checks

    5-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pre-operation checks before using this machine, check the following points: item routine page brakes • check operation, free play, fluid level and fluid leakage. • fill with dot 4 brake fluid if necessary. 5-2–5-3, 8-36–8-42 fuel • check fuel level. • fill with f...

  • Page 50

    5-2 ebu00854 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 8-39–8-42.) check the operation of the brake levers and brake pedal. They should move smoothly and there should be a f...

  • Page 51

    5-3 brake fluid leakage check to see if any brake fluid is leaking out of the pipe joints or master cylinder. Apply the brakes firmly for one minute. If there is any leaking, have the machine inspected by a yamaha dealer. Brake operation test the brakes at slow speed after starting out to make sure ...

  • Page 52

    5-4 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. _ your yamaha engine has been designed to ...

  • Page 53

    5-5 1. Fuel level 2. Filler tube warning potential hazard improper care when refueling. What can happen fuel can spill, which can cause a fire and severe injury. Fuel expands when it heats up. If the fuel tank is overfilled, fuel could spill out due to heat from the engine or the sun. How to avoid t...

  • Page 54

    5-6 ebu01084 engine oil make sure the engine oil is at the specified level. Add oil as necessary. (see page 8-12.) caution: _ ● 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...

  • Page 55

    5-7 ebu00493 final gear oil make sure the final gear oil is at the specified level. Add oil as necessary. (see pages 8-16– 8-17 for details.) if desired, an sae 80w90 hypoid gear oil may be used for all conditions. Note: gl-4 is a quality and additive rating, gl-5 or gl-6 rated hypoid gear oils may ...

  • Page 56

    5-8 caution: _ hard water or salt water is harmful to the engine. You may use distilled water if you cannot get soft water. _ coolant reservoir capacity: 0.3 l (0.26 imp qt, 0.32 us qt) warning potential hazard removing the radiator cap when the en- gine and radiator are still hot. What can happen y...

  • Page 57

    5-9 ebu01083 throttle lever check to see that the throttle lever operates correctly. It must open smoothly and spring back to the idle position when released. Have a yamaha dealer repair as necessary for proper operation. Ebu00152 fittings and fasteners always check the tightness of chassis fittings...

  • Page 58

    5-10 ebu00157 tires warning potential hazard operating this atv with improper tires, or with improper or uneven tire pres- sure. What can happen use of improper tires on this atv, or op- eration of this atv with improper or un- even tire pressure, may cause loss of control, increasing your risk of a...

  • Page 59

    5-11 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. U5km11.Boo...

  • Page 60

    5-12 ebu00159 how to measure tire pressure use the low-pressure tire gauge. Note: the low-pressure tire gauge is included as standard equipment. Make two measure- ments of the tire pressure and use the second reading. Dust or dirt in the gauge could cause the first reading to be incorrect. Set press...

  • Page 61

    5-13 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) u5km11.Book page 13 thursday, june 27, 2002 3:58 pm.

  • Page 62: Operation

    6-1 ebu00161 operation warning indicates a potential hazard that could result in serious injury or death. Ebu00672 starting a cold engine 1. Apply the rear brake lever. 2. Turn the fuel cock to “on”. 3. Turn the main switch to “on” and the en- gine stop switch to “ ”. 4. Shift the drive select lever...

  • Page 63

    6-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 note: ● when the drive select lever is in the neu- tral or park position, if either indicator light does not come on, ask a yamaha dealer to inspect its electric circuit. ● the engine can be started in any gear if the rear brake lever is applied. However, it is r...

  • Page 64

    6-3 note: ● if the engine fails to start, release the start switch, then push the start switch again. Pause a few seconds before the next attempt. Each cranking should be as short as possible to preserve battery en- ergy. Do not crank the engine more than 10 seconds on each attempt. ● if the battery...

  • Page 65

    6-4 ebu00846 drive select lever operation and reverse driving caution: _ before shifting, you must stop the ma- chine and return the throttle lever to the closed position. Otherwise, the transmis- sion may be damaged. _ shifting: neutral to high and high to low 1. Bring the machine to a complete sto...

  • Page 66

    6-5 shifting: neutral to reverse and reverse to park note: _ the drive select lever cannot be shifted into or from reverse or park without applying the rear brake. _ 1. Bring the machine to a complete stop and return the throttle lever to the closed position. 2. Apply the rear brake pedal. 3. Shift ...

  • Page 67

    6-6 5. Open the throttle lever gradually and con- tinue to watch to the rear while backing. Warning potential hazard improperly operating in reverse. What can happen you could hit an obstacle or person be- hind you, resulting in serious injury. How to avoid the hazard when you shift into reverse, ma...

  • Page 68

    6-7 ebu00210 engine break-in there is never a more important period in the life of your machine than the period between zero and 20 hours. For this reason, we ask that you carefully read the following material. Because the engine is brand new, you must not put an excessive load on it for the first s...

  • Page 69

    6-8 2. 10–20 hours: avoid prolonged operation above 3/4 throttle. Rev the machine freely but do not use full throttle at any time. 3. After break-in: avoid prolonged full throttle operation. Vary speeds occasionally. Ebu00612 parking when parking, stop the engine and shift the drive select lever int...

  • Page 70

    6-9 ebu00615 parking on a slope 1. Bring the machine to a stop by applying the brakes. 2. Stop the engine. 3. With the rear brake applied, shift the drive select lever to the park position. Warning potential hazard parking on a hill or other incline. What can happen the atv could roll out of control...

  • Page 71

    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. Your yamaha dealer has a vari...

  • Page 72

    6-11 ebu00960 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. An overloaded atv can be unstable. ● do not exce...

  • Page 73

    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 low range whenever you are carrying heavier loads or when towing a trailer. ● allow more braking distance. A heavier ve- hicle tak...

  • Page 74

    6-13 ebu00956 warning _ indicates a potential hazard that could result in serious injury or death. U5km11.Book page 13 thursday, june 27, 2002 3:58 pm.

  • Page 75: Riding

    7-1 7 riding your atv u5km11.Book page 1 thursday, june 27, 2002 3:58 pm.

  • Page 76

    7-2 u5km11.Book page 2 thursday, june 27, 2002 3:58 pm.

  • Page 77

    7-3 warning _ indicates a potential hazard that could result in serious injury or death. Getting to know your atv this atv is mainly for utility use, but may also be used for recreation. This section, riding your atv, provides general atv riding in- structions for recreational riding. The skills and...

  • Page 78

    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 79

    7-5 not recommended for children under 16 years of age. Warning potential hazard failure to follow the age recommenda- tions for this atv. What can happen use by children of atvs that are not rec- ommended for their age can lead to se- vere injury or death of the child. How to avoid the hazard a chi...

  • Page 80

    7-6 this machine is designed to carry operator and cargo only - passengers prohibited. Warning potential hazard carrying a passenger on this atv. What can happen greatly reduces your ability to balance and control this atv. Could cause an accident, resulting in harm to you and/ or your passenger. Ho...

  • Page 81

    7-7 apparel warning apparel potential hazard operating this atv without wearing an approved motorcycle helmet, eye pro- tection and protective clothing. What can happen operating without an approved motor- cycle helmet increas- es your chances of a severe head injury or death in the event of an acci...

  • Page 82

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

  • Page 83

    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 machine. Warning potential hazard failure to inspect the atv before oper- ating. Failure to properly maintain the atv. What can happen increases the possibility of an...

  • Page 84

    7-10 warning _ indicates a potential hazard that could result in serious injury or death. Do not operate at speeds too fast for your skills or the conditions. Speed limiter for riders less experienced with this model, this model is equipped with a speed limiter in the throttle lever housing. The spe...

  • Page 85

    7-11 loading and accessories use extra caution when riding the machine with additional loads, such as accessories or cargo. The machine’s handling may be ad- versely affected. Reduce your speed when adding additional loads. Maximum loading limit ● vehicle loading limit: 220 kg (485 lb) * total weigh...

  • Page 86

    7-12 during operation always keep your feet on the footboards dur- ing operation. Otherwise your feet may con- tact the rear wheels. Warning potential hazard removing hands from handlebars or feet from footboards during operation. What can happen removing even one hand or foot can re- duce your abil...

  • Page 87

    7-13 avoid wheelies and jumping. You may lose control of the machine or overturn. Warning potential hazard attempting wheelies, jumps, and other stunts. What can happen increases the chance of an accident, in- cluding an overturn. How to avoid the hazard never attempt stunts, such as wheelies or jum...

  • Page 88

    7-14 modifications warning 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. How to avoid the hazard never modify ...

  • Page 89

    7-15 exhaust system the exhaust system on the machine is very hot during and following operation. To prevent burns, avoid touching the exhaust system. Park the machine in a place where pedestri- ans or children are not likely to touch it. Warning potential hazard hot exhaust system. What can happen ...

  • Page 90

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

  • Page 91

    7-17 do not ride on any public road, street, or high- way. Riding on public roads can result in collisions with other vehicles. Warning potential hazard operating this atv on public streets, roads or highways. What can happen you can collide with another vehicle. How to avoid the hazard never operat...

  • Page 92

    7-18 know the terrain where you ride. Ride cau- tiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and oth- er hidden hazards which may cause the ma- chine to upset. Warning potential hazard failure to use extra care when operating this atv on unfamiliar terrain. What...

  • Page 93

    7-19 warning potential hazard failure to use extra care when operating on excessively rough, slippery or loose terrain. What can happen could cause loss of traction or vehicle control, which could result in an acci- dent, including an overturn. How to avoid the hazard do not operate on excessively r...

  • Page 94

    7-20 when riding in an area where you might not easily be seen, such as desert terrain, mount a caution flag on the machine. Do not use the flag pole bracket as a trailer hitch. Do not ride in areas posted “no trespassing”. Do not ride on private property without getting permission. Warning potentia...

  • Page 95

    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. Al- ways avo...

  • Page 96

    7-22 turning your atv to achieve maximum traction while riding off- road in 2wd or 4wd, the two rear wheels are mounted solidly on one axle and turn together at the same speed. Furthermore, when riding in 4wd-lock (“diff. Lock”), the front wheels also turn together at the same speed. There- fore, un...

  • Page 97

    7-23 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 sur- face is slippery or ...

  • Page 98

    7-24 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. In ...

  • Page 99

    7-25 warning potential hazard climbing hills improperly. What can happen could cause loss of control or cause the atv to overturn. How to avoid the hazard always follow proper procedures for climbing hills as described in this own- er’s manual. Always check the terrain carefully be- fore you start u...

  • Page 100

    7-26 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. Warning potential hazard improperly crossing hills or turn...

  • Page 101

    7-27 when crossing the side of a hill: always follow proper procedures as de- scribed in the owner’s manual. Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the atv. U5km11.Book page 27 thursday, june 27, 2002 3:58 pm.

  • Page 102

    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. Physically turn the atv aroun...

  • Page 103

    7-29 if you begin rolling backwards: keep weight uphill. 2wd: never apply the rear brake while rolling backwards. Apply the front brake. 4wd or 4wd-lock: apply both front and rear brakes gradually. When fully stopped, shift to the park- ing position “p”. Dismount on uphill side or to a side if point...

  • Page 104

    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. Engine compres- sion will do most of the braking for you. For maximum engine compression braking effect, select low ...

  • Page 105

    7-31 warning potential hazard going down a hill improperly. What can happen could cause loss of control or cause the atv to overturn. Always follow proper procedures for go- ing down hills as described in this own- er’s manual. Note: a special technique is required when braking as you go down a hill...

  • Page 106

    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. Avoid slopes with slippery surfaces or rough t...

  • Page 107

    7-33 u5km11.Book page 33 thursday, june 27, 2002 3:58 pm.

  • Page 108

    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 u...

  • Page 109

    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 and the check...

  • Page 110

    7-36 1. V-belt cooling duct check hose (left side) 1. V-belt case drain plug 1. Drive select lever box check hose u5km11.Book page 36 thursday, june 27, 2002 3:58 pm.

  • Page 111

    7-37 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 112

    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, position- ing your weight over the ...

  • Page 113

    7-39 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 surfa...

  • Page 114

    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 ... ● if your atv doesn’t turn when you want it to: bring the atv to a stop and practice the turning maneuvers again. Be sure you are putting your we...

  • Page 115

    7-41 ● 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. If you dis- cover that the atv is ...

  • Page 116: Periodic Maintenance and

    8-1 ebu00515 periodic maintenance and adjustment periodic inspection, adjustment and lubrica- tion will keep your machine in the safest and most efficient condition possible. Safety is an obligation of the machine owner. The most important points of machine inspection, ad- justment and lubrication a...

  • Page 117

    8-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 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. The tools provided in the owner’s tool kit are sufficient for this purpose,...

  • Page 118

    8-3 ebu00261 periodic maintenance/lubrication item routine whichever comes first initial every mile (km) 200 (320) 750 (1,200) 1,500 (2,400) 1,500 (2,400) 3,000 (4,800) hours 20 75 150 150 300 valves* • check valve clearance. • adjust if necessary. Cooling system • check coolant leakage. • repair if...

  • Page 119

    8-4 * it is recommended that these items be serviced by a yamaha dealer. ** lithium-soap-based grease wheels* • check balance/damage/runout. • repair if necessary. Wheel bearing* • check bearing assemblies for looseness/damage. • replace if damaged. Front and rear suspension* • check operation. • co...

  • Page 120

    8-5 ebu00614 panel removal and installation the panels illustrated need to be removed to perform some of the maintenance described in this chapter. Refer to this section each time a panel has to be removed or reinstalled. 1. Panel a 2. Panel c 3. Panel b 4. Panel d 5. Panel e 6. Panel f u5km11.Book ...

  • Page 121

    8-6 ebu00879 panels a and d to remove 1. Remove the seat. (see page 4-20 for seat removal and installation proce- dures.) 2. Pull outward on the area shown, and then pull upward as shown. 1. Panel a 1. Panel d u5km11.Book page 6 thursday, june 27, 2002 3:58 pm.

  • Page 122

    8-7 to install 1. Insert the panel projections in the numer- ical order shown in the illustration, and then push inward on the area shown. 2. Install the seat. 1. Panel a 1. Panel d u5km11.Book page 7 thursday, june 27, 2002 3:58 pm.

  • Page 123

    8-8 ebu00962 panel b to remove remove the bolts. To install place the panel in the original position and in- stall the bolts. 1. Panel b 2. Bolt ( × 2) caution: _ when installing the panel, be sure not to pinch the cables or wires. _ u5km11.Book page 8 thursday, june 27, 2002 3:58 pm.

  • Page 124

    8-9 ebu01141 panel c to remove 1. Remove the front carrier by removing the stay covers at the rear, then by removing the bolts. 2. Remove the quick fasteners and pull the panel upward. 1. Front carrier stay cover ( × 2) 1. Bolt ( × 2) 1. Bolt ( × 2) u5km11.Book page 9 thursday, june 27, 2002 3:58 pm.

  • Page 125

    8-10 1. Bolt ( × 2) (under fenders) 1. Quick fastener ( × 2) 2. Panel c to install 1. Place the panel in the original position and install the quick fasteners. 2. Install the front carrier by installing the bolts and tightening them to the specified torques. 3. Install the stay covers. Tightening to...

  • Page 126

    8-11 ebu01013 panel e to remove remove the bolts, and then take the panel off. To install place the panel in the original position, and then install the bolts. 1. Panel e 2. Bolt ( × 6) ebu00638 panel f to remove pull outward on the areas shown. 1. Panel f u5km11.Book page 11 thursday, june 27, 2002...

  • Page 127

    8-12 to install place the panel in its original position. Ebu01099 engine oil engine oil level measurement 1. Remove panel f. (see page 8-11 for panel removal and installation proce- dures.) 2. Place the atv on a level surface and warm up the engine for several minutes. 3. Stop the engine. 4. Remove...

  • Page 128

    8-13 note: _ wait a few minutes until the oil level settles before checking. _ 6. The oil level should be between the max- imum and minimum marks. If the level is low, fill the engine with sufficient oil to reach the specified level. 1. Maximum level mark 2. Minimum level mark engine oil and oil fil...

  • Page 129

    8-14 5. Remove the oil filter cartridge by using an oil filter wrench. 1. Engine oil filter cartridge 2. Oil filter wrench note: _ an oil filter wrench is available at a nearby yamaha dealer. _ 6. Install the drain bolt and tighten it to the specified torque. Tightening torque: drain bolt: 30 nm (3....

  • Page 130

    8-15 1. Torque wrench 7. Apply a light coat of engine oil to the o- ring of the new oil filter cartridge. Note: _ make sure the o-ring is seated properly. _ 8. Install the oil filter cartridge, and then tighten it to the specified torque with a torque wrench. 9. Fill the engine with sufficient oil t...

  • Page 131

    8-16 caution: _ ● 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 high- er quality than specified. In addition, do not use oils labeled “energy conserving ii” or...

  • Page 132

    8-17 1. Final gear oil drain bolt 4. Install the drain bolt and tighten it to the specified torque. 5. Fill the final gear case with oil. Caution: _ be sure no foreign material enters the final gear case. _ 6. Install the filler bolt and tighten to the specified torque. 7. Check for oil leakage. If ...

  • Page 133

    8-18 ebu00706 differential gear oil differential 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 sufficient oil to raise it to the specified level. 1. Differential gea...

  • Page 134

    8-19 4. Install the drain bolt and tighten it to the specified torque. 5. Fill the differential gear case with oil. Caution: _ be sure no foreign material enters the dif- ferential gear case. _ 6. Install the filler bolt and tighten it to the specified torque. 7. Check for oil leakage. If oil leakag...

  • Page 135

    8-20 ebu01068 cooling system 1. Check the coolant level in the coolant reservoir when the engine is cold as the coolant level will vary with engine tem- perature. The coolant level should be be- tween the maximum and minimum marks. 1. Coolant reservoir tank cap 2. Maximum level mark 3. Minimum level...

  • Page 136

    8-21 note: _ ● if water is added, have a yamaha dealer check the antifreeze content of the cool- ant as soon as possible. ● the radiator fan operation is completely automatic. It is switched on or off accord- ing to the coolant temperature in the radi- ator. _ if your atv overheats, see page 8-56 fo...

  • Page 137

    8-22 1. Place the atv on a level surface. 2. Remove panels e and f. (see page 8-11 for panel removal and installation proce- dures.) 3. Place a container under the engine, and then remove the coolant drain bolt. (use a trough or a similar object as shown to prevent coolant from spilling on the foot-...

  • Page 138

    8-23 1. Radiator cap 5. Remove the radiator cap. 6. Remove the coolant reservoir cap. 7. Disconnect the hose on the coolant res- ervoir side, and then drain the coolant from the coolant reservoir. 1. Coolant reservoir drain hose 8. After draining the coolant, thoroughly flush the cooling system with...

  • Page 139

    8-24 10. Install the coolant reservoir hose. 11. Pour the recommended coolant into the radiator until it is full. Caution: _ hard water or salt water is harmful to the engine. You may use soft water if you can not get distilled water. _ 12. Install the radiator cap. 13. Start the engine and let it i...

  • Page 140

    8-25 ebu00862 axle boots check the protective boots for holes or tears. If any damage is found, have them replaced by a yamaha dealer. 1. Front axle boot ( × 2 each side) 1. Rear axle boot ( × 2 each side) u5km11.Book page 25 thursday, june 27, 2002 3:58 pm.

  • Page 141

    8-26 ebu00864 spark plug inspection removal 1. Remove panel a. (see pages 8-6–8-7 for panel removal and installation proce- dures.) 2. Remove the spark plug cap. 1. Spark plug cap 3. Use the spark plug wrench in the tool kit to remove the spark plug as shown. 1. Spark plug wrench u5km11.Book page 26...

  • Page 142

    8-27 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 insu- lator around the center electrode is a medium- to-light tan color for a atv that is being ridden norm...

  • Page 143

    8-28 note: _ if a torque wrench is not available when you are installing a spark plug, a good estimate of the correct torque is 1/4 to 1/2 turn past finger tight. Have the spark plug tightened to the specified torque as soon as possible. _ 4. Install the spark plug cap. 5. Install the panel. Tighten...

  • Page 144

    8-29 ebu00792 air filter element cleaning note: _ there is a check hose at the bottom of the air filter case. If dust or water collects in this hose, empty the hose and clean the air filter element and air filter case. _ 1. Air filter case check hose 1. Remove the seat. (see page 4-20 for seat remov...

  • Page 145

    8-30 1. Air filter frame 4. Wash the element gently but thoroughly in solvent. 5. Squeeze the excess solvent out of the fil- ter element and let it dry. Caution: _ do not twist the filter element when squeezing it. _ 6. Inspect the element and replace it if dam- aged. Warning potential hazard using ...

  • Page 146

    8-31 7. Apply yamaha foam air filter oil or other quality foam air filter oil to the element. If foam air filter oil is not available, motor oil may be used. Note: _ the element should be wet but not dripping. _ 8. Pull the element over its frame. 9. Install the element assembly. 1. Breather hose 10...

  • Page 147

    8-32 ebu01066 spark arrester cleaning be sure the exhaust pipe and muffler are cool before cleaning the spark arrester. 1. Remove the bolts. 2. Remove the tailpipe by pulling it out of the muffler. 3. Tap the tailpipe lightly, and then use a wire brush to remove any carbon depos- its from the spark ...

  • Page 148

    8-33 ebu00874 v-belt cooling duct check hose if dust or water collects in the v-belt cooling duct check hose, remove the hose and clean it. 1. V-belt cooling duct check hose (left side) warning potential hazard improper cleaning of the spark arrester. Hot exhaust system what can happen could injure ...

  • Page 149

    8-34 v-belt case drain plug after riding in water deep enough to allow it to enter the v-belt case, remove this plug to drain the water from the case. Note: _ if water drains from the v-belt case after re- moving the plug, have a yamaha dealer in- spect the atv as the water may affect other engine p...

  • Page 150

    8-35 ebu00657 idle speed adjustment note: a diagnostic tachometer must be used for this procedure. 1. Start the engine and warm it up for a few minutes at approximately 1,000 to 2,000 r/min. Occasionally rev the engine to 4,000 to 5,000 r/min. The engine is warm when it quickly responds to the throt...

  • Page 151

    8-36 ebu00307 throttle lever adjustment note: adjust the engine idling speed before adjust- ing the throttle lever free play. 1. Loosen the locknut. 2. Turn the adjusting bolt until the throttle le- ver free play is 3–5 mm (0.12–0.20 in). 3. Tighten the locknut. 1. Locknut 2. Adjusting bolt a. Free ...

  • Page 152

    8-37 ebu00878 rear 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 2. Brake pad plate a. Wear limit: 1 mm (0.04 in) ebu00875 inspecting the brake fluid level insufficient brake f...

  • Page 153

    8-38 1. Minimum level mark 1. Minimum level mark observe these precautions: 1. When checking the fluid level, make sure the top of the master cylinder reservoir is level by turning the handlebars. 2. Use only the designated quality brake flu- id. Otherwise, the rubber seals may dete- riorate, causin...

  • Page 154

    8-39 5. Brake fluid may deteriorate painted sur- faces or plastic parts. Always clean up spilled fluid immediately. 6. Have a yamaha dealer check the cause if the brake fluid level goes down. Ebu01118 brake fluid replacement 1. Complete fluid replacement should be done only by trained yamaha service...

  • Page 155

    8-40 ebu00963 rear brake lever and pedal adjustment rear brake lever free play adjustment the rear brake lever free play should be 0.5– 2 mm (0.02–0.08 in). 1. Loosen the locknut. 1. Locknut 2. Adjusting bolt c. Free play warning potential hazard operating with improperly serviced or adjusted brakes...

  • Page 156

    8-41 2. Turn the adjusting bolt in direction a to increase free play, and in direction b to decrease free play. 3. Tighten the locknut. If correct free play cannot be obtained, ask a yamaha dealer to make that adjustment. Note: _ ● when adjusting the rear brake lever free play: ● be sure not to step...

  • Page 157

    8-42 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. Turn the adjusting n...

  • Page 158

    8-43 ebu00356 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. Ebu00717 brake lever and brake pedal lubrication lubricate the pivoting parts. Warning potential hazard damaged control cables. Wh...

  • Page 159

    8-44 ebu00877 rear wheel upper and lower knuckle lubrication lubricate the upper and lower wheel knuck- les. 1. Upper knuckle 2. Lower knuckle recommended lubricant: lithium-soap-based grease u5km11.Book page 44 thursday, june 27, 2002 3:58 pm.

  • Page 160

    8-45 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. 1. Tapered nut ( × 4) ebu01121 wheel installation 1. Install the wheel and the nuts. Note: _ ● tapered nuts are used for both t...

  • Page 161

    8-46 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 (5.5 m·kgf, 40 ft·lbf) rear: 55 nm (5.5 m·kgf, 40 ft·lbf) u5km11.Book page 46 thursday, june 27, 2002 3:58 pm.

  • Page 162

    8-47 ebu00380 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. Caution: do not try to remove the sealing caps of the battery c...

  • Page 163

    8-48 ebu00385 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. Caution: a special battery charger (constant volt- age/ampere or constant voltage) is re- quired for ...

  • Page 164

    8-49 ebu00876 fuse replacement 1. The main fuse case and the fuse box are located under the seat. 2. If a 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, con- sult a yamaha dealer. 1. Main fuse ...

  • Page 165

    8-50 caution: _ to prevent accidental short-circuiting, turn off the main switch when checking or replacing a fuse. _ warning potential hazard using an improper fuse. What can happen an improper fuse can cause damage to the electrical system which could lead to a fire. How to avoid the hazard always...

  • Page 166

    8-51 ebu01125 replacing a headlight bulb if a headlight bulb burns out, replace it as fol- lows. 1. Remove the bulb holder cover at the rear of the headlight by pulling it off. 1. Cover 1. Bulb holder cover 2. Remove the headlight bulb holder by turning it counterclockwise. 1. Bulb holder u5km11.Boo...

  • Page 167

    8-52 3. Remove the defective bulb by pushing it in and turning it counterclockwise. 4. Insert a new headlight bulb into the bulb holder, push it in, and then turn it clock- wise until it stops. 5. Install the bulb holder by turning it clock- wise. 6. Install the bulb holder cover at the rear of the ...

  • Page 168

    8-53 ebu01105 tail/brake light bulb replacement if the tail/brake light bulb burns out, have a yamaha dealer replace it. U5km11.Book page 53 thursday, june 27, 2002 3:58 pm.

  • Page 169

    8-54 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. The troubleshooting chart describes a qui...

  • Page 170

    8-55 ebu00806 troubleshooting charts starting problems or poor engine performance 1. Fuel check if there is fuel in the fuel tank. There is fuel. Turn the fuel cock lever to “off”. No fuel. Fuel cock is clogged. Clean the fuel cock. Some fuel. Turn the fuel cock lever to “res”. Restart the engine. N...

  • Page 171

    8-56 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. _ warning potential hazard removing the radiator cap when the en- gine and radiator are still hot. What ca...

  • Page 172: Cleaning and Storage

    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 w...

  • Page 173

    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 ...

  • Page 174

    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. Fill the fuel tank with fresh fuel and add the specified amount of yamaha fu...

  • Page 175

    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)). Note: make any necessary repairs before storing the machine. U5km11.Book page 4 thursday...

  • Page 176: Specifications

    10-1 ebu00428 specifications model yfm660f dimensions: overall length 2,085 mm (82.1 in) overall width 1,150 mm (45.3 in) overall height 1,210 mm (47.6 in) seat height 880 mm (34.6 in) wheelbase 1,275 mm (50.2 in) minimum ground clearance 275 mm (10.8 in) minimum turning radius 3,200 mm (126.0 in) b...

  • Page 177

    10-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 engine oil: type 10 ° 30 ° 50 ° 70 ° 90 ° 110 ° 0 ° 130 °f -10 ° 0 ° 10 ° 20 ° 30 ° 40 ° -20 ° 50 °c yamalube 4 (20w40) or sae 20w40 yamalube 4 (10w30) or sae 10w30 sae 5w30 recommended engine oil classification api service se, sf, sg type or higher quantity: pe...

  • Page 178

    10-3 final gear case oil: type sae80 api “gl-4” hypoid gear oil quantity: periodic oil change 0.25 l (0.22 imp qt, 0.26 us qt) total amount 0.30 l (0.26 imp qt, 0.32 us qt) differential gear case oil: type sae80 api “gl-4” hypoid gear oil quantity: periodic oil change 0.28 l (0.25 imp qt, 0.30 us qt...

  • Page 179

    10-4 spark plug: type/manufacturer dpr8ea-9 / ngk spark plug gap 0.8–0.9 mm (0.031–0.035 in) clutch type wet, centrifugal automatic transmission: primary reduction system v-belt secondary reduction system shaft drive secondary reduction ratio 39/24 × 24/18 × 33/9 (7.944) transmission type v-belt aut...

  • Page 180

    10-5 brake: front brake type dual disc brake operation right hand operation rear brake type single disc brake operation left hand and right foot operation suspension: front suspension double wishbone rear suspension double wishbone shock absorber: front shock absorber coil spring / oil damper rear s...

  • Page 181

    10-6 bulb voltage, wattage × quantity: headlight 12 v, 30 w / 30 w × 2 tail/brake light 12 v, 5 w / 21 w × 1 indicator light: neutral indicator light led × 1 reverse indicator light led × 1 coolant temperature warning light led × 1 park indicator light led × 1 high-range indicator light led × 1 low-...

  • Page 182: Noise Regulation

    11-1 ebu00430 1- noise regulation tampering with noise control system prohibited: federal law prohibits the following acts or the causing thereof: (1) the removal or rendering inop- erative by any person other than for purposes of maintenance, repair, or replacement of any de- vice or element of des...

  • Page 183: Maintenance Record

    12-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ebu01126 1- maintenance record copies of work orders and/or receipts for parts you purchase and install 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 w...

  • Page 184

    13-1 ebu00432 yamaha motor corporation, u.S.A. Atv limited warranty u5km11.Book page 1 thursday, june 27, 2002 3:58 pm.

  • Page 185

    13-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 u5km11.Book page 2 thursday, june 27, 2002 3:58 pm.

  • Page 186

    14-1 ebu00435 yamaha extended service (y.E.S.) u5km11.Book page 1 thursday, june 27, 2002 3:58 pm.

  • Page 187

    14-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ebu00436 warning _ indicates a potential hazard that could result in serious injury or death. U5km11.Book page 2 thursday, june 27, 2002 3:58 pm.

  • Page 188

    Ebu00437 u5km11.Book page 3 thursday, june 27, 2002 3:58 pm.

  • Page 189

    Ebu00776.

  • Page 190: 5Km-28199-11

    5km-28199-11 lit-11626-16-34 read this manual carefully! It contains important safety information. This atv should not be ridden by anyone under 16 years of age. Warning yfm660fr owner’s manual printed in japan 2002.06-7.8 ×1 cr (e) printed on recycled paper yamaha motor co., ltd. Ebu00438 locate an...

  • Page 191

    Card.Fm page 1 wednesday, june 13, 2001 9:35 am.

  • Page 192

    Card.Fm page 2 wednesday, june 13, 2001 9:35 am.