Yamaha TT-R125EY Service Manual page 187

FRONT BRAKE (TT-R125LE)
Brake caliper piston seal kit
1. Remove:
• Brake caliper dust seal 1
• Brake caliper piston seal 2
TIP
Remove the brake caliper piston seals and
brake caliper dust seals by pushing them with a
finger.
NOTICE
Never attempt to pry out brake caliper piston
seals and brake caliper dust seals.
WARNING
Replace the brake caliper piston seals and
brake caliper dust seals whenever a brake
caliper is disassembled.
INSPECTION
Brake master cylinder
1. Inspect:
• Brake master cylinder inner surface a
Wear/scratches → Replace brake master
cylinder assembly.
Stains → Clean.
WARNING
Use only new brake fluid.
2. Inspect:
• Diaphragm 1
Crack/damage → Replace.
3. Inspect:
• Brake master cylinder piston 1
• Brake master cylinder cup 2
Wear/damage/score marks → Replace
brake master cylinder kit.
5-15
CHAS