Checking The Shift Forks; Checking The Shift Drum Assembly; Checking The Transmission - Yamaha XT660R S Service Manual

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TRANSMISSION
EAS00421

CHECKING THE SHIFT FORKS

The following procedure applies to all of the
shift forks.
1. Check:
• shift fork cam follower 1
• shift fork pawl 2
Bends/damage/scoring/wear → Replace
the shift fork.
2. Check:
• shift fork movement
Rough movement → Replace the shift
forks.
EAS00422

CHECKING THE SHIFT DRUM ASSEMBLY

1. Check:
• shift drum grooves
Damage/scratches/wear → Replace the
shift drum assembly.
• shift drum segment 1
Damage/wear → Replace the shift drum
assembly.
• shift drum bearing 2
Damage/pitting → Replace the shift drum
assembly.
EAS00425

CHECKING THE TRANSMISSION

1. Measure:
• main axle runout
(with a centering device and dial gauge 1)
Out of specification → Replace the main
axle.
Main axle runout limit
0.08 mm (0.0031 in)
ENG