Page 9 of 150

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............................... 7-18
CROSSING THROUGH SHALLOW
WATER ................................................... 7-19
RIDING OVER ROUGH TERRAIN ........... 7-20
SLIDING AND SKIDDING ......................... 7-21
WHAT TO DO IF... .................................... 7-22
WHAT TO DO... ........................................ 7-22
PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1
Owner’s manual and tool kit ....................... 8-2
Periodic maintenance chart for
the emission control system ..................... 8-3
General maintenance and
lubrication chart ........................................ 8-5
Removing and installing the cowling and
panels ....................................................... 8-9Checking the spark plug ...........................8-12
Engine oil and oil filter element .................8-13
Coolant .....................................................8-19
Cleaning the air filter element ...................8-20
Cleaning the spark arrester ......................8-24
Adjusting the throttle lever free play .........8-26
Valve clearance ........................................8-27
Brakes .......................................................8-27
Checking the front and rear brake pads ...8-27
Checking the brake fluid level ...................8-29
Changing the brake fluid ...........................8-30
Checking the front brake lever free play ...8-30
Checking the brake pedal height ..............8-30
Adjusting the parking brake free play .......8-31
Brake light switches ..................................8-32
Adjusting the clutch lever free play ...........8-33
Drive chain slack .......................................8-34
Lubricating the drive chain ........................8-36
Checking and lubricating the cables .........8-37
Checking and lubricating the brake and
clutch levers ............................................8-38
Checking the shift pedal ...........................8-38
Checking and lubricating the brake
pedal .......................................................8-38
Checking the wheel hub bearings .............8-39
Lubricating the swingarm pivots ...............8-39
U18P64E0.book Page 2 Thursday, May 13, 2010 6:00 PM
Page 24 of 150

3-1
3
EBU17680
DESCRIPTION
EBU17690Left view
EBU17700Right view
1. Front shock absorber assembly compression damping
force adjusting bolt (for fast compression damping)
2. Front shock absorber assembly compression damping
force adjusting screw (for slow compression damping)
3. Front shock absorber assembly spring preload adjusting
nut
4. Engine oil tank filler cap
5. Rear brake fluid reservoir
6. Battery
7. Shift pedal
8. Coolant reservoir
9. Front shock absorber assembly rebound damping force
adjusting screw
7 8 95 3 1
6
4
2
1. Spark arrester
2. Fuse
3. Rear shock absorber assembly spring preload adjusting
nut
4. Rear shock absorber assembly compression damping
force adjusting bolt (for fast compression damping)
5. Rear shock absorber assembly compression damping
force adjusting screw (for slow compression damping)
6. Oil filter element
7. Brake pedal
8. Rear brake light switch
9. Rear shock absorber assembly rebound damping force
adjusting screw
6 7 8 1
2
3
4
5
9
U18P64E0.book Page 1 Thursday, May 13, 2010 6:00 PM
Page 93 of 150

8-7
8
14*Chassis fastenersMake sure that all nuts, bolts, and screws are
properly tightened.√√√√√
15*Shock absorber as-
sembliesCheck operation and correct if necessary.
Check for oil leakage and replace if necessary.√√√
16*Rear suspension re-
lay arm and con-
necting arm
pivoting pointsCheck operation and correct if necessary.√√√√
17*Steering shaftLubricate with lithium-soap-based grease.√√√
18*Steering systemCheck operation and repair or replace if damaged.
Check toe-in and adjust if necessary.√√√√√
19 Engine oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√ √√√
20Engine oil filter ele-
mentReplace.√√√
21*Cooling systemCheck coolant level and ATV for coolant leakage,
and correct if necessary.√√√√√
Replace coolant. Every 2 years
22*Moving parts and
cablesLubricate.√√√√ 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 320U18P64E0.book Page 7 Thursday, May 13, 2010 6:00 PM
Page 99 of 150

8-13
8 Before installing the spark plug, the spark plug gap
should be measured with a wire thickness gauge
and, if necessary, adjusted to specification.
Clean the surface of the spark plug gasket and its
mating surface, and then wipe off any grime from
the spark plug threads.
TIPIf a torque wrench is not available when installing
the 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 as soon as possible.EBU29498Engine 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 spec-
ified in the periodic maintenance and lubrication
chart.
To check the engine oil level
1. Place the ATV on a level surface.
2. Start the engine, warm it up until the engine oil
has reached a normal temperature of 40 °C
(104 °F), let it continue to idle for ten seconds
or more, and then turn the engine off. Specified spark plug:
NGK/CR8E
1. Spark plug gapSpark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Tightening torque:
Spark plug:
13 Nm (1.3 m·kgf, 9.4 ft·lbf)
U18P64E0.book Page 13 Thursday, May 13, 2010 6:00 PM
Page 102 of 150
8-16
86. Remove the crankcase engine oil drain bolt
and its gasket.
TIPSkip steps 7–10 if the oil filter element is not being
replaced.7. Remove the oil filter element cover by remov-
ing the bolts.
1. Engine oil tank drain bolt
2. Gasket
1
2
1. Crankcase engine oil drain bolt
2. Gasket
12
U18P64E0.book Page 16 Thursday, May 13, 2010 6:00 PM
Page 103 of 150
8-17
8 8. Remove the oil filter element and the O-rings.
9. Install a new oil filter element and new O-
rings.
TIPMake sure that the O-rings are properly seated.10. Install the oil filter element cover by installing
the bolts, and then tighten them to the speci-
fied torque.
1. Oil filter element cover
2. Bolt
1
2
1. Oil filter element
2. O-ringTightening torque:
Oil filter element cover bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
2
2
U18P64E0.book Page 17 Thursday, May 13, 2010 6:00 PM
Page 104 of 150

8-18
811. Install the crankcase engine oil drain bolt, the
engine oil tank drain bolt and their new gasket,
and then tighten the bolts to their specified
torques.
12. Refill with the specified amount of the recom-
mended engine oil through the engine oil tank
filler hole, and then install and tighten the en-
gine oil tank filler cap.
TIPBe sure to wipe off spilled oil on any parts after the
engine 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.Make sure that no foreign material enters the
crankcase.13. Start the engine, and then let it idle for several
minutes while checking it for oil leakage. If oil
is leaking, immediately turn the engine off and
check for the cause.
14. Turn the engine off, and then check the oil lev-
el and correct it if necessary. Tightening torques:
Crankcase engine oil drain bolt:
20 Nm (2.0 m·kgf, 14 ft·lbf)
Engine oil tank drain bolt:
20 Nm (2.0 m·kgf, 14 ft·lbf)
Recommended oil:
See page 10-1.
Oil quantity:
Without oil filter element replacement:
1.40 L (1.48 US qt, 1.23 Imp.qt)
With oil filter element replacement:
1.45 L (1.53 US qt, 1.28 Imp.qt)
U18P64E0.book Page 18 Thursday, May 13, 2010 6:00 PM
Page 109 of 150
8-23
8 10. Check the sponge material and replace it if
damaged.
11. Apply Yamaha foam air filter oil or other qual-
ity foam air filter oil to the sponge material.
TIPThe sponge material should be wet but not drip-
ping.12. Pull the sponge material over the air filter ele-
ment frame.
13. Apply all-purpose grease to the air filter ele-
ment seat.14. Install the washer onto the air filter element
frame, and then insert the wing bolt into the
hole in the air filter element frame. NOTICE:
Be sure to install the washer with its
curved side facing outward as shown.
[ECB00453]
1. Air filter element seat
1
U18P64E0.book Page 23 Thursday, May 13, 2010 6:00 PM