Yamaha WR250FM Bicycle User Manual


 
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CHAS
FRONT BRAKE AND REAR BRAKE
Brake caliper piston seal kit
1. Remove:
Dust seal 1
Piston seal 2
N
OTE:
Remove the piston seals and dust seals by
pushing them with a finger.
CAUTION:
Never attempt to pry out piston seals and
dust seals.
WARNING
Replace the piston seals and dust seals
whenever a caliper is disassembled.
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Front
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Rear
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EC5A4000
INSPECTION
Brake master cylinder
1. Inspect:
Brake master cylinder inner surface
a
Wear/scratches Replace master cylin-
der assembly.
Stains Clean.
WARNING
Use only new brake fluid.
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Front
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Rear
2. Inspect:
Diaphragm 1
Crack/damage Replace.
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Front
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Rear
É
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3. Inspect:
Brake master cylinder piston 1
Brake master cylinder cup 2
Wear/damage/score marks Replace
brake master cylinder kit.
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Front
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Rear
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