Yamaha YZF-R1S Service Manual page 186

A
B
FRONT AND REAR BRAKES
EAS00633
CHECKING THE FRONT AND REAR BRAKE
CALIPERS
Recommended brake component
Brake pads
Piston seals
Brake hoses
Brake fluid
1. Check:
S brake caliper pistons 1
Rust/scratches/wear ! Replace the brake
caliper pistons.
S brake caliper cylinders 2
Scratches/wear ! Replace the brake cali-
per assembly.
S brake caliper body 3
Cracks/damage ! Replace the brake cali-
per assembly.
S brake fluid delivery passages
(brake caliper body)
Obstruction ! Blow out with compressed air.
WARNING
Whenever a brake caliper is disassembled,
replace the brake caliper piston seals.
A Front
B Rear
2. Check:
S brake caliper bracket 1
Cracks/damage ! Replace.
4-39
CHAS
p
replacement schedule
If necessary
Every two years
Every four years
Every two years
and whenever the
brake is disas-
sembled