Chassis; Adjusting The Front Disc Brake; Adjusting The Brake Pedal - Yamaha 2009 YFM25RY Service Manual

EAS29360

CHASSIS

EAS21170

ADJUSTING THE FRONT DISC BRAKE

1. Check:
• Brake lever free play "a"
Out of specification → Bleed the front
brake system.
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" on page 3-20.
Brake lever free play (at the end
of the brake lower)
0 mm (0 in)
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.
2. Adjust:
(For 4D3H, 4D3M)
• Brake lever position "a"
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. While pushing the brake lever forward,
loosen the locknut "1".
b. While pushing the brake lever forward, turn
the adjusting bolt "2" in direction "b" or "c"
until the specified brake lever free play is
obtained.
Direction "b"
Brake lever free play is increased.
Direction "c"
Brake lever free play is decreased.
c. Tighten the locknut.
ECA13490
After adjusting the brake lever position,
make sure there is no brake drag.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS29190

ADJUSTING THE BRAKE PEDAL

1. Check:
• Brake pedal height "a"
Out of specification → Adjust.
Brake pedal height
40.0 mm (1.57 in)
2. Adjust:
• Brake pedal height
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Loosen the locknut "1".
b. Turn the adjusting bolt "2" until the brake
pedal height is within the specified limits.
c. Tighten the locknut.
TIP
When adjusting the brake pedal height make
sure the locknut-to-adjusting bolt clearance "a"
does not exceed 2.2–3.2 mm (0.09–0.13 in).
3-16

CHASSIS