Page 9 of 148

OPERATION .................................................. 6-1
Starting a cold engine  ................................ 6-1
Starting a warm engine  .............................. 6-3
Operating the drive select lever and 
driving in reverse  ...................................... 6-3
Engine break-in  .......................................... 6-5
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 
JUDGEMENT ............................................ 7-2
BE CAREFUL WHERE YOU RIDE ............. 7-9
TURNING YOUR ATV .............................. 7-12
CLIMBING UPHILL ................................... 7-14
RIDING DOWNHILL.................................. 7-17
CROSSING A SLOPE............................... 7-18
CROSSING THROUGH SHALLOW 
WATER ................................................... 7-19
RIDING OVER ROUGH TERRAIN ........... 7-22
SLIDING AND SKIDDING ......................... 7-22
WHAT TO DO IF... .................................... 7-23
WHAT TO DO... ........................................ 7-23PERIODIC MAINTENANCE AND MINOR 
REPAIR ..........................................................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
Removing and installing cowlings and 
panels .......................................................8-9
Checking the spark plug  ...........................8-15
Engine oil and oil filter cartridge ................8-17
Final gear oil  .............................................8-22
Changing the differential gear oil  ..............8-25
Coolant .....................................................8-27
Cleaning the air filter element  ...................8-31
Cleaning the spark arrester  ......................8-34
V-belt cooling duct check hose  .................8-35
V-belt case drain plug  ...............................8-36
Adjusting the carburetor ............................8-36
Adjusting the engine idling speed  .............8-36
Adjusting the throttle cable free play .........8-38
Valve clearance  ........................................8-38
Adjusting the drive select lever safety 
system cable  ...........................................8-39
Checking the front and rear brake pads  ...8-39
Checking the brake fluid level  ...................8-40
Changing the brake fluid  ...........................8-41U3C263E0.book  Page 2  Thursday, May 15, 2008  10:44 AM 
     
        
        Page 18 of 148
3-1
3
EBU17680
DESCRIPTION 
EBU17690Left view
EBU17700Right view
1. Front shock absorber assembly spring preload adjusting 
ring
2. Fuel cock
3. Air filter case
4. Fuses
5. Storage compartment and tool kit
6. Seat lock lever
7. Rear shock absorber assembly spring preload adjusting 
ring
8. Engine oil filler cap
9. Oil filter cartridge
10.Coolant reservoir
11.V-belt cooling duct check hose
1. Spark arrester
2. Tail/brake light
3. Battery
4. Spark plug
5. Rear brake fluid reservoir
6. Radiator cap
7. Front shock absorber assembly spring preload adjusting 
ring
8. Rear brake light switch
9. Brake pedal
10.V-belt case drain plug
U3C263E0.book  Page 1  Thursday, May 15, 2008  10:44 AM 
     
        
        Page 81 of 148

8-6
8
8*SwingarmCheck for excessive play, and correct if necessary.√√√
9*V- b e l tCheck for wear, cracks or other damage, and re-
place if necessary.√ √√√
10*Chassis fastenersMake sure that all nuts, bolts, and screws are 
properly tightened.√√√√√
11*Shock absorber as-
sembliesCheck operation and correct if necessary.
Check for oil leakage and replace if necessary.√√√
12*Steering shaftLubricate with lithium-soap-based grease.√√√
13*Steering systemCheck operation and repair or replace if damaged.
Check toe-in and adjust if necessary.√√√√√
14*Engine mountCheck for cracks or other damage, and replace if 
necessary.√√√
15*Axle bootsCheck for cracks or other damage, and replace if 
necessary.√√√√√
16 Engine oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√ √√√
17Engine oil filter car-
tridgeReplace.√√√
18*Engine oil strainerClean.√√√
19 Differential gear oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√√ NO. ITEMCHECK OR MAINTENANCE 
JOBINITIAL EVERY
Whichev-
er comes 
firstmonth136612
km 
(mi)320 
(200)1300 
(800)2500 
(1600)2500 
(1600)5000 
(3200)
hours 20 80 160 160 320
U3C263E0.book  Page 6  Thursday, May 15, 2008  10:44 AM 
     
        
        Page 82 of 148

8-7
8
EBU23070TIPThe air filter needs more frequent service if you are riding in unusually wet or dusty areas.20 Final gear oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√√
21 Cooling systemCheck coolant level and ATV for coolant leakage, 
and correct if necessary.√√√√√
Replace coolant. Every 2 years
22*Moving parts and 
cablesLubricate.√√√√
23*Drive select lever 
safety system cableCheck operation and adjust or replace if neces-
sary.√√√
24*Throttle lever hous-
ing and cableCheck operation and correct if necessary.
Check throttle cable free play and adjust if neces-
sary.
Lubricate throttle lever housing and cable.√√√√√
25*Front and rear brake 
switchesCheck operation and correct if necessary.√√√√√
26*Lights and switchesCheck operation and correct if necessary.
Adjust headlight beams.√√√√√ NO. ITEMCHECK OR MAINTENANCE 
JOBINITIAL EVERY
Whichev-
er comes 
firstmonth136612
km 
(mi)320 
(200)1300 
(800)2500 
(1600)2500 
(1600)5000 
(3200)
hours 20 80 160 160 320U3C263E0.book  Page 7  Thursday, May 15, 2008  10:44 AM 
     
        
        Page 92 of 148

8-17
82. 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 with the spark plug
wrench, and then tighten it to the specified
torque.
TIPIf a torque wrench is not available when installing
a spark plug, a good estimate of the correct torque
is 1/4–1/2 turn past finger tight. However, the spark
plug should be tightened to the specified torque assoon as possible.
4. Install the spark plug cap.EBU26427Engine oil and oil filter cartridge The engine oil level should be checked before
each ride. In addition, the oil must be changed and
the oil filter cartridge replaced at the intervals spec-
ified in the periodic maintenance and lubrication
chart.
To check the engine oil level
1. Place the ATV on a level surface.
2. Remove panel D. (See page 8-9.)
3. Check the engine oil level on a cold engine.TIPIf the engine was started before checking the oil
level, be sure to warm up the engine sufficiently,
and then wait at least ten minutes until the oil set-tles for an accurate reading.
1. Spark plug gapTightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.7 ft·lbf)
U3C263E0.book  Page 17  Thursday, May 15, 2008  10:44 AM 
     
        
        Page 94 of 148
8-19
8To change the engine oil (with or without oil fil-
ter cartridge replacement)
1. Place the ATV on a level surface.
2. Remove panel D. (See page 8-9.)
3. Start the engine, warm it up for several min-
utes, and then turn it off.
4. Place an oil pan under the engine to collect
the used oil.
5. Remove the engine oil filler cap, and then re-
move the engine oil drain bolt to drain the oil
from the crankcase.
TIPSkip steps 6–10 if the oil filter cartridge is not beingreplaced.
6. Remove panel C. (See page 8-9.)
7. Remove the oil filter cartridge with an oil filter
wrench.
1. Engine oil drain bolt
1. Oil filter cartridge
U3C263E0.book  Page 19  Thursday, May 15, 2008  10:44 AM 
     
        
        Page 95 of 148
8-20
8
TIPAn oil filter wrench is available at a nearby Yamahadealer.
8. Apply a thin coat of engine oil to the O-ring of
the new oil filter cartridge.
TIPMake sure that the O-ring is properly seated.
9. Install the new oil filter cartridge with an oil fil-
ter wrench, and then tighten it to the specified
torque with a torque wrench.
1. Oil filter wrench
1. O-ring
U3C263E0.book  Page 20  Thursday, May 15, 2008  10:44 AM 
     
        
        Page 96 of 148

8-21
8
10. Install panel C.
11. Install the engine oil drain bolt, and then tight-
en it to the specified torque.12. Refill with the specified amount of the recom-
mended engine oil, and then install and tight-
en the engine oil filler cap.
TIPBe sure to wipe off spilled oil on any parts after theengine and exhaust system have cooled down.NOTICEECB00300In 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 CONSERV-
ING II” or higher.
1. Torque wrenchTightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
Tightening torque:
Engine oil drain bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
Recommended oil:
See page 10-1.
Oil quantity:
Without oil filter cartridge replacement:
2.30 L (2.43 US qt, 2.02 Imp.qt)
With oil filter cartridge replacement:
2.40 L (2.54 US qt, 2.11 Imp.qt)
U3C263E0.book  Page 21  Thursday, May 15, 2008  10:44 AM