Checking The Brake Hose; Adjusting The Front Brake - Yamaha YZ450FF 1SL-28199-11 Owner's Service Manual

CHECKING THE BRAKE HOSE

EAS1SL5093
1. Check:
• Brake hose "1"
Cracks/damage/wear  Replace.
1
A. Front
B. Rear
2. Check:
• Brake hose clamp
Loose Connection  Tighten the clamp bolt.
3. Stand the vehicle upright and apply the front
brake and the rear brake several times.
4. Check:
• Brake hoses
Brake fluid leaks  Replace the damaged
brake hose.
Refer to "FRONT BRAKE" on page 4-12.
Refer to "REAR BRAKE" on page 4-22.

ADJUSTING THE FRONT BRAKE

EAS1SL5094
1. Check:
• Brake lever position "a"
Brake lever position
95 mm (3.74 in)
Extent of adjustment
86–105 mm (3.39–4.13 in)
2. Remove:
• Brake lever cover
3. Adjust:
• Brake lever position
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a. Loosen the locknut "1".
b. Turn the adjusting bolt "2" in direction "a" or
"b" until the specified brake lever position is
obtained.
Direction "a"
Brake lever position is increased.
1
Direction "b"
Brake lever position is decreased.
c. Tighten the locknut.
Locknut
EWA13050
WARNING
A soft or spongy feeling in the brake lever
can indicate the presence of air in the brake
system. Before the vehicle is operated, the
air must be removed by bleeding the brake
system. Air in the brake system will consid-
erably reduce braking performance.
ECA13490
NOTICE
After adjusting the brake lever position,
make sure there is no brake drag.
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3-22
CHASSIS
a
b
5 Nm (0.5 m·kgf, 3.6 ft·lbf)