Yamaha TTR90(M) Owner's Service Manual page 248

FRONT WHEEL AND REAR WHEEL
2
1 1 1
5 - 5
EC593000
REMOVAL POINTS
EC513201
Wheel bearing (if necessary)
1. Remove:
Bearing 1
NOTE:
Remove the bearing using a general bearing
puller 2.
EC594000
INSPECTION
EC514100
Wheel
1. Measure:
Wheel runout
Out of limit
Wheel runout limit:
Radial 1: 2.0 mm (0.08 in)
Lateral 2: 2.0 mm (0.08 in)
Brake lining
1. Inspect:
Brake shoe lining surface
Glazed areas
Use coarse sand paper.
NOTE:
After polishing, wipe the polished particles with
a cloth.
2. Measure:
Brake shoe lining thickness
Brake shoe lining thickness a:
Standard:
3 mm (0.12 in)
Limit:
2 mm (0.08 in)
Out of specification
Measuring points
NOTE:
Replace the brake shoes as a set if either is
worn to the limit.
CHAS
Repair/replace.
Polish.
Replace.