Removing The Transmission; Checking The Shift Forks - Yamaha YFM250RX 2008 Service Manual

TRANSMISSION

REMOVING THE TRANSMISSION

1. Remove:
• Shift fork guide bar
• Shift drum assembly
• Shift fork 3 (R)
• Shift fork 2 (C)
• Shift fork 1 (L)
2. Remove:
• Transmission

CHECKING THE SHIFT FORKS

The following procedure applies to all of the
shift forks.
1. Check:
• Shift fork movement
(along the shift fork guide bar)
Rough movement → Replace the shift forks
and shift fork guide bar as a set.
Shift fork 3 (R)
Shift fork 2 (C)
Shift fork 1 (L)
Shift fork guide bar
Shift drum assembly
Shift fork cam follower
2. Check:
• Shift fork cam follower
• Shift fork pawl
Bends/damage/scoring/wear → Replace
the shift fork.
3. Check:
• Shift fork guide bar
Roll the shift fork guide bar on a flat sur-
face.
Bends → Replace.
WARNING
Do not attempt to straighten a bent shift
fork guide bar.
4-80
ENG