Yamaha TT-R125EY Service Manual page 199

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REAR WHEEL AND REAR BRAKE
5-27
TIP
The bending value is shown by one half of the
dial gauge reading.
WARNING
Do not attempt to straighten a bent axle.
Drum brake
1 Inspect:
• Brake shoe lining surface
Glazed areas → Polish.
Use coarse sand paper.
TIP
After polishing, wipe the polished particles with
a cloth.
2. Measure:
• Brake shoe lining thickness a
Out of specification → Replace.
Brake shoe lining thickness:
Standard
4.0 mm
(0.16 in)
TIP
Replace the brake shoes and springs as a set if
either is worn to the limit.
3. Measure:
• Brake drum inside diameter a
Out of specification → Replace.
Brake drum inside diameter:
Standard
110 mm
(4.33 in)
CHAS
<Limit>
2.0 mm
(0.08 in)
<Limit>
111 mm
(4.37 in)

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