Yamaha TT-R125LW, Owner'S Service Manual

Page: 346 / 468

5 - 3
CHAS
FRONT WHEEL
Brake disc
1. Measure:
●
Brake disc deflection
Use the dial gauge
1 .
Out of specification
→
Inspect wheel runout.
If wheel runout is in good condition,
replace the brake disc.
2. Measure:
●
Brake disc thickness
a
Out of limit
→
Replace.
Disc deflection limit:
0.15 mm (0.006 in)
Disc wear limit:
Standard <Limit>
3.0 mm
(0.12 in)
2.5 mm
(0.10 in)
ASSEMBLY AND INSTALLATION
Front wheel
1. Install:
●
Wheel bearing 1
●
Spacer 2
●
Wheel bearing 3
●
Oil seal 4
NOTE:
●
Apply the lithium soap base grease on the
wheel bearing and oil seal lip when installing.
●
Install the wheel bearing so that the enclosed
side is facing outward.
●
Use a socket that matches the outside diam-
eter of the race of the bearing.
●
Left side of wheel bearing shall be installed first.
●
Install the oil seal with its manufacture's
marks or numbers facing outward.
CAUTION:
Do not strike the inner race of the bearing.
Contact should be made only with the outer
race.
New