5-4
5
EBU19731Front and rear brakes Brake levers and brake pedalCheck that there is no free play in the front brake
lever. If there is free play, have a Yamaha dealer
check the brake system.Check for correct free play in the rear brake le-
ver. If the free play is incorrect, adjust it. (See
page 8-42.)Check for correct brake pedal height. If the pedal
height is incorrect, have a Yamaha dealer adjust
it.Check the operation of the brake levers and
pedal. They should move smoothly and there
should be a firm feeling when the brakes are ap-
plied. If not, have a Yamaha dealer check the
brake system.
Brake fluid level
Check the brake fluid level. Add fluid if necessary.
(See page 8-40.)Brake fluid leakage
Check to see if any brake fluid is leaking out of the
pipe joints or brake fluid reservoirs. Apply the
brakes firmly for one minute. If a lever moves slow-
ly inward, there may be a leak in the brake system.
If there is any leakage, the brake system should be
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 brake pads for wear. (See page 8-39.)
WARNING
EWB00580Always check the brakes at the start of every
ride. Do not ride the ATV if you find any prob-
lem with the brakes or you could lose braking
ability, which could lead to an accident. If a
problem cannot be corrected by the adjust-
ment procedures provided in this manual, havea Yamaha dealer check for the cause.
Recommended brake fluid:
DOT 4
U3C263E0.book Page 4 Thursday, May 15, 2008 10:44 AM
10-1
10
EBU25960
SPECIFICATIONS
Dimensions:Overall length:
1978 mm (77.9 in)
Overall width:
1063 mm (41.9 in)
Overall height:
1095 mm (43.1 in)
Seat height:
840 mm (33.1 in)
Wheelbase:
1233 mm (48.5 in)
Ground clearance:
220 mm (8.7 in)
Minimum turning radius:
3000 mm (118 in)Weight:With oil and fuel:
250.0 kg (551 lb)Noise and vibration level:Noise level (77/311/EEC):
80.8 dB(A)
Vibration on seat (EN1032, ISO5008):
Will not exceed 0.7 m/s²
Vibration on handlebar (EN1032, ISO5008):
Will not exceed 2.5 m/s²Engine:Engine type:
Liquid cooled 4-stroke, SOHCCylinder arrangement:
Forward-inclined single cylinder
Displacement:
421.0 cm³
Bore × stroke:
84.5 × 75.0 mm (3.33 × 2.95 in)
Compression ratio:
10.00 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
U3C263E0.book Page 1 Thursday, May 15, 2008 10:44 AM
