Disassembling The Front Brake Calipers; Calipers - Yamaha YZF-R1S Service Manual

FRONT AND REAR BRAKES
EAS00625
DISASSEMBLING THE FRONT BRAKE

CALIPERS

The following procedure applies to both of the
brake calipers.
NOTE:
Before disassembling the brake caliper, drain
the brake fluid from the entire brake system.
1. Remove:
S union bolt 1
S copper washers 2
S brake hose 3
NOTE:
Put the end of the brake hose into a container
and pump out the brake fluid carefully.
2. Remove:
S brake caliper pistons 1
S brake caliper piston seals 2
a. Secure the brake caliper pistons with a piece
of wood a .
b. Blow compressed air into the brake hose
joint opening b to force out the left side pis-
tons from the brake caliper.
WARNING
S Never try to pry out the brake caliper pis-
tons.
S Do not loosen the bolts 3 .
c. Remove the brake caliper piston seals.
d. Repeat the previous steps to force out the
right side pistons from the brake caliper.
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CHAS