REAR BRAKE
4-40
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a. Blow compressed air into the brake hose joint
opening “a” to force out the pistons from the
brake caliper.
WARNING
EWA13550
• Cover the brake caliper piston with a rag.
Be careful not to get injured when the pis-
ton is expelled from the brake caliper.
• Never try to pry out the brake caliper pis-
ton.
b. Remove the brake caliper piston dust seals
and brake caliper piston seals.
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EAS37P1132
CHECKING THE REAR BRAKE CALIPER
(YP125R)
1. Check:
• Brake caliper pistons “1”
Rust/scratches/wear → Replace the brake
caliper assembly.
• Brake caliper body “2”
Cracks/damage → Replace the brake caliper
assembly.
• Brake fluid delivery passages
(brake caliper body)
Obstruction → Blow out with compressed air.
EAS22640
CHECKING THE REAR BRAKE CALIPER
(YP250R)
1. Check:
• Brake caliper pistons “1”
Rust/scratches/wear → Replace the brake
caliper pistons.
• Brake caliper cylinders “2”
Scratches/wear → Replace the brake caliper
assembly.
• Brake caliper body “3”
Cracks/damage → Replace the brake caliper
assembly.
• Brake fluid delivery passages
(brake caliper body)
Obstruction → Blow out with compressed air.
WARNING
EWA37P1014
Whenever a brake caliper is disassembled,
replace the brake caliper piston dust seals
and brake caliper piston seals.
Recommended brake component replace-
ment schedule
Brake pads If necessary
Brake hose Every four years
Brake fluid
Every two years and
whenever the brake
is disassembled
a
Recommended brake component replace-
ment schedule
Brake pads If necessary
Piston seals Every two years
Piston dust seals Every two years
Brake hose Every four years
Brake fluid
Every two years and
whenever the brake
is disassembled
2
1
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