Adjusting The Rear Disc Brake; Checking The Rear Brake Pads; Checking The Front Brake Hoses - Yamaha YZF-R1 2020 Service Manual

EAS30631

ADJUSTING THE REAR DISC BRAKE

1. Adjust:
• Brake pedal position
a. Loosen the locknut "1".
b. Turn the adjusting bolt "2" until the speci-
fied brake pedal position is obtained.
EWA18830
WARNING
After adjusting the brake pedal position,
check that the end of the adjusting bolt "a" is
visible through the hole "b".
c. Tighten the locknut "1" to specification.
Rear brake master cylinder lock-
nut
16 N·m (1.6 kgf·m, 12 lb·ft)
EWA17030
WARNING
A soft or spongy feeling in the brake pedal
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.
ECA13510
NOTICE
After adjusting the brake pedal position,
make sure there is no brake drag.
a
b
a a
2
1
3-15
PERIODIC MAINTENANCE
2. Adjust:
• Rear brake light switch
Refer to "ADJUSTING THE REAR BRAKE
LIGHT SWITCH" on page 3-35.
EAS30634

CHECKING THE REAR BRAKE PADS

The following procedure applies to all of the
brake pads.
1. Operate the brake.
2. Check:
• Rear brake pad
Wear indicator grooves "a" almost disap-
peared → Replace the brake pads as a set.
Refer to "REAR BRAKE" on page 4-63.
a a
EAS30635

CHECKING THE FRONT BRAKE HOSES

The following procedure applies to all of the
brake hoses and brake hose holders.
1. Check:
• Brake hose "1"
Cracks/damage/wear → Replace.
2. Check:
• Brake hose surface
Partly blackened surface on the brake hose
→ Replace.
3. Check:
• Brake hose holder "2"
Loose → Tighten the holder bolt.
1
2
1
2