Page 73 of 140
7-19
1
2
3
4
5
67
8
9
10
11
them several times to let friction dry out the lin-
ings. If the ATV is operated through deep or
fast flowing water, the tires may float, causing
loss of traction and loss of control, which
could lead to an accident.
Test your brakes after leaving the water. Do not
continue to ride your ATV without verifying that you
have regained proper braking ability.
CAUTION:
ECB00240
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 fresh water if it has been operated in
salt water or muddy conditions.
Page 80 of 140

8-4
1
2
3
4
5
6
78
9
10
11
6
*
Rear brake
Check operation and correct if necessary.
Check brake pedal free play and adjust if neces-
sary.
Check fluid level and ATV for fluid leakage, and
correct if necessary.
√√√√√
Replace brake pads. Whenever worn to the limit
7
*
Brake hoses
Check for cracks or other damage, and replace if
necessary.
√√√√
Replace. Every 4 years
8
*
Parking brake
Check operation and adjust if necessary.
√√√√√
9
*
Wheels
Check runout and for damage, and replace if nec-
essary.
√√√√√
10
*
Tires
Check tread depth and for damage, and replace if
necessary.
Check air pressure and balance, and correct if
necessary.
√√√√√
11
*
Wheel bearings
Check for looseness or damage, and replace if
necessary.
√ √√√
12
*
Upper and lower
arm pivots
Lubricate with lithium-soap-based grease.
√√√
13 Drive chain
Check chain slack and adjust if necessary.
Check rear wheel alignment and correct if necess-
sary.
Clean and lubricate.
√ √√√
14
*
Drive chain rollers
Check for wear and replace if necessary.
√√√
NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth 1 3 6 6 12
km
(mi)320
(200)1200
(750)2400
(1500)2400
(1500)4800
(3000)
hours 20 75 150 150 300
Page 114 of 140

8-38
1
2
3
4
5
6
78
9
10
11
shown. If the free play is incorrect, adjust it as fol-
lows.
1. Loosen the locknut at the clutch lever.
2. To increase the clutch lever free play, turn the
adjusting bolt in direction (a), and to decrease
it, turn the bolt in direction (b).
3. Tighten the locknut.
NOTE:
If the specified free play cannot be obtained as de-
scribed above or if the clutch does not operate cor-rectly, have a Yamaha dealer check the internal
clutch mechanism.
EBU24851
Drive chain slack
The drive chain slack should be checked before
each ride and adjusted if necessary.
To check the drive chain slack
1. Place the ATV on a level surface.
NOTE:
When checking and adjusting the drive chain
slack, there should be no weight on the ATV and
all tires must be touching the ground.
2. Move the ATV back and forth to locate the
tightest portion of the drive chain, and then
measure the drive chain slack as shown.
1. Locknut
2. Clutch lever free play adjusting bolt
3. Clutch lever free play
1
2 3
(a)
(b)
Drive chain slack:
12.0–18.0 mm (0.47–0.71 in)
Page 131 of 140
9-3
1
2
3
4
5
6
7
89
10
11
with oil.)
e. Remove the spark plug caps from the
spark plugs, and then install the spark
plugs and the spark plug caps.
6. Lubricate all control cables and the pivoting
points of all levers and pedals.
7. Check and, if necessary, correct the tire air
pressure, and then block up the ATV so that
all of its wheels are off the ground. Alternative-
ly, turn the wheels a little every month in order
to prevent the tires from becoming degraded
in one spot.
8. Cover the muffler outlet with a plastic bag to
prevent moisture from entering it.
NOTE:
Make any necessary repairs before storing the
ATV.
Page 134 of 140

10-3
1
2
3
4
5
6
7
8
910
11
Size:
AT20 x 10-9
Manufacturer/model:
DUNLOP/KT877A
Loading:
Maximum loading limit:
100.0 kg (220 lb)
(Total weight of rider, cargo, accessories, and tongue)
Tire air pressure (measured on cold tires):
Recommended:
Front:
30.0 kPa (4.4 psi) (0.300 kgf/cm
2
)
Rear:
30.0 kPa (4.4 psi) (0.300 kgf/cm
2
)
Minimum:
Front:
27.0 kPa (3.9 psi) (0.270 kgf/cm
2
)
Rear:
27.0 kPa (3.9 psi) (0.270 kgf/cm
2
)
Maximum:
Front:
33.0 kPa (4.8 psi) (0.330 kgf/cm
2
)
Rear:
33.0 kPa (4.8 psi) (0.330 kgf/cm
2
)
Front wheel:
Wheel type:
Panel wheel
Rim size:
10 x 6.0AT
Rear wheel:
Wheel type:
Panel wheel
Rim size:
9 x 8.5AT
Front brake:
Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4
Rear brake:
Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4
Front suspension:
Type:
Double wishbone
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
230 mm (9.1 in)
Rear suspension:
Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Page 139 of 140

M
Main switch .....................................................................4-1
Model label....................................................................11-2
O
Owner’s manual and tool kit............................................8-1
P
Parking ............................................................................6-5
Parking brake ..................................................................4-5
Parking brake free play, adjusting.................................8-35
Parking on a slope ..........................................................6-6
Part locations ..................................................................3-1
Periodic maintenance and lubrication chart ....................8-3
Pre-operation check list ..................................................5-1
R
Riding your ATV ..............................................................7-1
S
Safety information ...........................................................1-1
Seat...............................................................................4-11
Shifting ............................................................................6-3
Shift pedal .......................................................................4-7
Shock absorber assemblies, adjusting the front ...........4-12
Shock absorber assembly, adjusting the rear ...............4-13
Spark arrester, cleaning ................................................8-19
Spark plugs, checking .....................................................8-7
Specifications ................................................................10-1
Speed limiter ...................................................................4-3
Starter (choke) ..............................................................4-10
Storage ...........................................................................9-2
Suspension, lubricating the upper and lower arm
pivots ..........................................................................8-43Suspension relay arm and connecting arm pivoting
points, lubricating the rear ......................................... 8-42
T
Tail/brake light bulb, replacing ..................................... 8-47
Throttle cable free play, adjusting ................................ 8-30
Throttle lever ...........................................................4-2
,
5-5
Throttle OverRide System.............................................. 4-3
Tire pressure, measuring ............................................... 5-7
Tires ............................................................................... 5-6
Tire wear limit................................................................. 5-7
Transmission oil ......................................................5-4
,
8-9
Troubleshooting ........................................................... 8-49
Troubleshooting charts ................................................ 8-51
V
Vehicle identification number ....................................... 11-1
W
Wheel bearings, checking ............................................ 8-42
Wheel, installing ........................................................... 8-49
Wheel, removing .......................................................... 8-48