Yamaha TTR125LM, Owner'S Service Manual

Page: 334 / 468

4 - 75
ENG
TRANSMISSION, SHIFT CAM AND SHIFT FORK
EC4H4600
Bearing
1. Inspect:
●
Bearing 1
Rotate inner race with a finger.
Rough spot/seizure
→
Replace.
Shift fork and shift cam
1. Inspect:
●
Shift fork 1
Wear/damage/scratches
→
Replace.
2. Inspect:
●
Shift cam 1
●
Shift fork guide bar 2
Bend/wear/damage
→
Replace.
3. Check:
●
Shift fork movement
On its guide bar.
Unsmooth operation
→
Replace shift
fork and/or guide bar.
NOTE:
For a malfunctioning shift fork, replace not only
the shift fork itself but the two gears each adja-
cent to the shift fork.