
 
EBU17420 
TABLE OF CONTENTS 
LOCATION OF THE WARNING AND 
SPECIFICATION LABELS  ............................ 1-1
SAFETY INFORMATION  .............................. 2-1
DESCRIPTION .............................................. 3-1
Left view .....................................................  3-1
Right view...................................................  3-1
Controls and instruments ...........................  3-2
INSTRUMENT AND CONTROL 
FUNCTIONS .................................................. 4-1
Main switch  ...............................................  4-1
Indicator lights  ...........................................  4-1
Handlebar switches  ...................................  4-2
Throttle lever  .............................................  4-3
Speed limiter  .............................................  4-3
Front brake lever  .......................................  4-4
Rear brake lever ........................................  4-4
Parking brake  ............................................  4-5
Drive select lever .......................................  4-6
Fuel tank cap .............................................  4-6
Fuel ...........................................................  4-6
Fuel cock  ...................................................  4-8
Starter (choke)  ..........................................  4-9Seat ......................................................... 4-10
Front carrier  ............................................. 4-11
Rear carrier  .............................................. 4-11
PRE-OPERATION CHECKS ..........................5-1
Fuel ............................................................ 5-3
Engine oil  ................................................... 5-3
Transmission oil  ......................................... 5-3
Front and rear brakes  ................................ 5-3
Throttle lever  .............................................. 5-3
Drive chain  ................................................. 5-3
Tires ........................................................... 5-3
Chassis fasteners  ...................................... 5-5
Instruments, lights and switches  ................ 5-6
Battery ....................................................... 5-6
OPERATION...................................................6-1
Starting a cold engine  ................................ 6-1
Starting a warm engine  .............................. 6-2
Operating the drive select lever and 
driving in reverse   .....................................6-3
Engine break-in .......................................... 6-4
Parking ....................................................... 6-5
Parking on a slope  ..................................... 6-5
Accessories and loading  ............................ 6-6 

 
RIDING YOUR ATV  ...................................... 7-1
GETTING TO KNOW YOUR ATV.............. 7-2
RIDE WITH CARE AND GOOD 
JUDGMENT ............................................. 7-2
BE CAREFUL WHERE YOU RIDE ............ 7-9
TURNING YOUR ATV ............................. 7-12
CLIMBING UPHILL .................................. 7-13
RIDING DOWNHILL................................. 7-16
CROSSING A SLOPE.............................. 7-17
CROSSING THROUGH SHALLOW 
WATER ..................................................7-18
RIDING OVER ROUGH TERRAIN .......... 7-20
SLIDING AND SKIDDING ........................ 7-20
WHAT TO DO IF... ................................... 7-21
WHAT TO DO... ....................................... 7-21
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   ........................................................ 8-5
Checking the spark plug ............................  8-8
Engine oil  ..................................................  8-9
Transmission oil  ......................................  8-12
Cleaning the engine and V-belt case air 
filter elements   ........................................ 8-15
Cleaning the spark arrester  .....................  8-21V-belt case drain screw  ........................... 8-23
Adjusting the carburetor ........................... 8-24
Adjusting the engine idling speed  ............ 8-24
Adjusting the throttle cable free play ........ 8-25
Valve clearance  ....................................... 8-26
Brakes ...................................................... 8-26
Checking the front and rear brake 
shoes   .....................................................8-26
Adjusting the front brake lever free 
play   ........................................................8-27
Adjusting the rear brake lever free 
play ........................................................ 8-32
Drive chain slack ...................................... 8-33
Lubricating the drive chain  ....................... 8-35
Checking and lubricating the cables  ........ 8-36
Checking and lubricating the front and 
rear brake levers   ....................................8-36
Checking the wheel hub bearings ............ 8-37
Lubricating the upper and lower arm
 pivots   ....................................................8-38
Lubricating the front knuckle pivots  ......... 8-39
Lubricating the steering shaft ................... 8-39
Battery ..................................................... 8-40
Replacing the fuse  ................................... 8-43
Replacing a headlight bulb  ...................... 8-44
Adjusting a headlight beam  ..................... 8-46
Replacing the tail/brake light bulb  ............ 8-46
Removing a wheel  ................................... 8-47
Installing a wheel  ..................................... 8-47 

 
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EBU19201 
PRE-OPERATION CHECKS 
EBU19224 
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always
follow the inspection and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
 
EWB00481  
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equip-
ment damage. Do not operate the vehicle if you find any problem. If a problem cannot be corrected 
by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer. 
Before using this vehicle, check the following points: 
ITEM ROUTINE PAGE
Fuel
 
 
Check fuel level in fuel tank, and add recommended fuel if neces-
sary. 
 
Check fuel line for leakage. Correct if necessary.4-6, 5-3  
Engine oil 
 
Check oil level in engine, and add recommended oil to specified
level if necessary. 
 
Check ATV for oil leakage. Correct if necessary.5-3, 8-9  
Transmission oil 
 
Check oil level in transmission case, and add recommended oil to
specified level if necessary. 
 
Check ATV for oil leakage. Correct if necessary.5-3, 8-12  
Front brake 
 
Check operation, and correct if necessary. 
 
Lubricate cable if necessary. 
 
Check lever free play, and adjust if necessary.5-3, 8-26, 8-27  
Rear brake 
 
Check operation, and correct if necessary. 
 
Lubricate cable if necessary. 
 
Check lever free play, and adjust if necessary.5-3, 8-26, 8-32 

 
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EBU19541 
Fuel  
Make sure that there is sufficient fuel in the tank.
(See page 4-6.) 
EBU19560 
Engine oil  
Make sure that the engine oil is at the specified lev-
el. Add oil as necessary. (See page 8-9.) 
EBU19580 
Transmission oil  
Make sure that the transmission oil is at the speci-
fied level. Add oil as necessary. (See page 8-12.) 
EBU19651 
Front and rear brakes  
Brake levers 
 
Check for correct free play in the brake levers. If
the free play is incorrect, adjust it. (See pages
8-27 and 8-32.) 
 
Check operation of the levers. They should
move smoothly and there should be a firm feel-
ing when the brake is applied. If not, have the
ATV checked by a Yamaha dealer. 
Brake operation 
Test the brakes at slow speed after starting out to
make sure they are working properly. If the brakes
do not provide proper braking performance, check
the brakes for wear. (See page 8-26.) 
EBU19761 
Throttle lever  
Check the operation of the throttle lever. It must
open smoothly and spring back to the idle position
when released. Have a Yamaha dealer correct if
necessary. 
EBU19770 
Drive chain  
Check the condition of the drive chain and check
the drive chain slack. Lubricate and adjust the
drive chain as necessary. (See page 8-33.) 
EBU19794 
Tires  
Check tire pressure regularly to make sure it is at
the recommended specifications. Also check for
wear and damage. 
Tire pressure 
Use the low-pressure tire gauge to check and
adjust tire pressures when the tires are cold. 

 
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EBU23061
TIP
 
Some maintenance items need more frequent service if you are riding in unusually wet, dusty, sandy or 
muddy areas, or at full-throttle. 
16 Engine oil strainer 
 
Clean. 
√√√  
17 Transmission oil 
  
 
Change. 
 
Check ATV for oil leakage, and correct if necessary. 
√√  
18 
* 
Moving parts and 
cables
 
 
Lubricate. 
√√√√  
19 
* 
Throttle lever hous-
ing and cable
 
 
Check operation and correct if necessary. 
 
Check throttle cable free play and adjust if neces-
sary. 
 
Lubricate throttle lever housing and cable. 
√√√√√  
20 
* 
Front and rear brake 
switches
 
 
Check operation and correct if necessary. 
√√√√√  
21 
* 
Lights and switches
 
 
Check operation and correct if necessary. 
 
Adjust headlight beams. 
√√√√√  
22 
* 
Battery
 
 
Check electrolyte level and specific gravity, and 
correct if necessary. 
 
Make sure that the breather hose is properly 
routed. 
√√√√√ 
NO. ITEMCHECK OR MAINTENANCE 
JOBINITIAL EVERY
Whichev-
er comes 
firstmonth 1 3 6 6 12
km 
(mi)320 
(200)1300 
(800)2500 
(1600)2500 
(1600)5000 
(3200)
hours 20 80 160 160 320 

 
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8. Refill with the specified amount of the recom-
mended engine oil, and then install and tight-
en the engine oil filler cap.
TIP
 
Be sure to wipe off spilled oil on any parts after the 
engine and exhaust system have cooled down.
NOTICE
 
ECB00330  
 
Do not use oils with a diesel specification of
“CD” or oils of a higher quality than speci-
fied. In addition, do not use oils labeled “EN-
ERGY CONSERVING II” or higher. 
 
Make sure that no foreign material enters the 
crankcase. 
9. Start the engine, and then let it idle for several
minutes while checking it for oil leakage. If oilis leaking, immediately turn the engine off and
check for the cause.
10. Turn the engine off, wait at least ten minutes,
and then check the oil level and correct it if
necessary. 
EBU27026 
Transmission oil  
The transmission oil level should be checked be-
fore each ride. In addition, the transmission oil
must be changed at the intervals specified in the
periodic maintenance and lubrication chart. 
To check the transmission oil level 
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Wait a few minutes until the oil settles, and
then loosen the transmission oil check screw
located at the right side of the crankcase until
oil flows out. Tightening torque:
Engine oil drain bolt:
32 Nm (3.2 m·kgf, 23 ft·lbf)
Recommended oil:
See page 10-1.
Oil quantity:
1.25 L (1.32 US qt, 1.10 Imp.qt) 

 
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4. If no oil flows out, remove the transmission oil
filler bolt and its gasket.5. Pour the recommended type of oil in the trans-
mission oil filler hole until it flows out of the
check screw hole.
6. Tighten the oil check screw to the specified
torque.
7. Check the oil filler bolt gasket for damage, and
replace it if necessary. 
1.  Transmission oil check screw
2. Gasket
3.  Transmission oil level check hole
4.  Correct oil level
1 431
2
 
1. Transmission oil filler bolt
2. Gasket 
Tightening torque:
Transmission oil check screw:
16 Nm (1.6 m·kgf, 12 ft·lbf)
1
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8. Install the transmission oil filler bolt and its
gasket, and then tighten the bolt to the speci-
fied torque. 
To change the transmission oil 
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Place an oil pan under the transmission to col-
lect the used oil.
4. Remove the transmission oil filler bolt, the
transmission oil drain bolt and their gasket to
drain the oil from the transmission case.5. Install the drain bolt and its new gasket, and
then tighten the bolt to the specified torque.
6. Refill with the specified amount of the recom-
mended transmission oil.   
NOTICE:  
 Make
sure that no foreign material enters the
transmission case.
 
[ECB00791] 
  Tightening torque:
Transmission oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf) 
1.  Transmission oil drain bolt
2. Gasket 
Tightening torque:
Transmission oil drain bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
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