Disassembling The Front Brake Calipers; Checking The Front Brake Calipers - Yamaha YFM400FAR Service Manual

FRONT BRAKE
DISASSEMBLING THE FRONT BRAKE
CALIPERS
1.Remove:
Brake caliper piston
G
Dust seal 1
G
Caliper piston seal 2
G
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Removal steps:
G
Blow compressed air into the hose joint
opening to force out the caliper piston from
the brake caliper body.
WARNING
Never try to pry out the caliper piston.
G
Cover the caliper piston with a rag. Be
G
careful not to get injured when the piston
is expelled from the master cylinder.
G
Remove the caliper piston seals.
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EB702040

CHECKING THE FRONT BRAKE CALIPERS

Recommended brake component
replacement schedule:
Brake pads
Piston seal, dust seal Every two years
Brake hoses
Brake fluid
WARNING
All internal brake components should be
cleaned in new brake fluid only. Do not use
solvents as they will cause seals to swell
and distort.
1.Check:
Brake caliper piston 1
G
Scratches/rust/wear → Replace the brake
caliper assembly.
Brake caliper cylinder 2
G
Wear/scratches → Replace the brake caliper
assembly.
Brake caliper body 3
G
Cracks/damage → Replace.
8 - 16
CHAS
As required
Every two years
Replace when
brakes are
disassembled.