Front Brake - Yamaha YBR 125 Service Manual

Inspection of front and rear wheels
6-6
Drive chain of meter
Driven chain of meter

Front brake

1.Inspection
Friction liner surface of brake pad
Smooth area→polish
Polish with rough sand
Note
:
After polish with sand,clean off the grainsof polishing
material.
2. Measurement
Friction liner thickness of brake pad
O
ut of specification→replace
The friction liner thickness of brake a
Thickness a : 4mm
Note:
If any brake pad is found to be worn to the wear
limit ,replace the complete sets of brake shoes.
3.Measurement
Inner diameter of brake drum a
Out of specification→replace
Inner diameter of brake drum
Stardard value: 130mm
CHAS
Limit: 2mm
limit valve: 131mm