Removing The Transmission; Checking The Shift Fork - Yamaha YFM50S Service Manual

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TRANSMISSION

REMOVING THE TRANSMISSION

1. Remove:
• shift fork guide bar 1
• shift fork 2
• drive axle/middle drive pinion gear assem-
bly 3
• shift drum 4
NOTE:
Remove the shift fork guide bar, shift fork,
drive axle/middle drive gear assembly, and
shift drum from the crankcase together.
EBS00350

CHECKING THE SHIFT FORK

1. Check:
• shift fork cam follower 1
• shift fork pawl 2
Bends/damage/scoring/wear → Replace
the shift fork.
2. Check:
• shift fork guide bar
Roll the shift fork guide bar on a flat surface.
Bends → Replace.
WARNING
_
Do not attempt to straighten a bent shift
fork guide bar.
3. Check:
• shift fork movement
(along the shift fork guide bar)
Rough movement → Replace the shift fork
and shift fork guide bar as a set.
ENG