Removing The Transmission; Checking The Shift Forks - Yamaha YXR70FX Service Manual

TRANSMISSION

REMOVING THE TRANSMISSION

1. Remove:
• shift drum 1
• shift fork assembly 2
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a. Pull out the guide bar from the left crank-
case.
b. Push down on the drive shaft, and then
slide the shift fork assembly to remove the
shift fork cam followers.
c. Remove the shift drum.
d. Remove the shift fork assembly.
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EBS00349

CHECKING THE SHIFT FORKS

The following procedure applies to each shift
fork.
1. Check:
• shift fork cam follower 1
• shift fork pawl 2
Scoring/bends/wear/damage → Replace.
2. Check:
• guide bar
Roll the guide bar on a flat surface.
Bends → Replace.
WARNING
_
Do not attempt to straighten a bent guide
bar.
3. Check:
• shift fork movement
(on the guide bar)
Unsmooth operation → Replace the shift
fork and the guide bar.
4. Check:
• spring
Cracks/damage → Replace.
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ENG
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