Yamaha BEARTRACKER YFM250XC, Service Manual

Page: 193 / 398

6 - 7
DRIV
MIDDLE GEAR SERVICE
6.Remove:
●
Bearing retainer 1
NOTE:
●
Use a Ring nut wrench 2 .
●
Bearing 3
Shift lever
1.Remove:
●
Shift fork guide bar 1
●
Shift fork 2
●
Ball 3
●
Spring 4
NOTE:
When removing the shift fork guide bar, the
ball will fall off. Take care not lose the ball.
Ring nut wrench:
P/N. YM-1391, 90890-01391
2.Remove:
●
Circlip 1
●
Stopper shaft 2
●
Shift lever 3
●
Shift lever shaft 4
INSPECTION
1.Inspect:
●
Gear teeth (all gears)
1
Pitting/Galling/Wear
→
Replace.
●
Dog clutch
2
●
Wear/Cracks/Damage
→
Replace.
●
Middle drive shaft
3
●
Middle driven shaft
4
Bends/Damage
→
Replace.
NOTE:
When the middle gear and/or middle driven
shaft are replaced, be sure to adjust the
middle gear shim(s), refer to the “MIDDLE
GEAR SHIM SELECTION” section.
2.Inspect:
●
Bearings 5
Pitting/Damage
→
Replace.
●
Oil seal 6
Wear/Damage
→
Replace.
6