Checking The Shift Drum; Checking The Transmission - Yamaha YFM7FGPW Service Manual

TRANSMISSION
EBS00351

CHECKING THE SHIFT DRUM

1. Check:
• shift drum grooves
Scratches/wear/damage → Replace.
EBS00354

CHECKING THE TRANSMISSION

1. Measure:
• drive axle runout
(with a centering device and dial gauge 1)
Out of specification → Replace the drive
axle.
Drive axle runout limit
0.06 mm (0.0024 in)
2. Check:
• transmission gears
Blue discoloration/pitting/wear → Replace
the defective gear(s).
• transmission gear dogs
Cracks/damage/rounded edges → Replace
the defective gear(s).
3. Check:
• transmission gear engagement
(each pinion gear to its respective wheel
gear)
Incorrect → Reassemble the transmission
axle assemblies.
4. Check:
• transmission gear movement
Rough movement → Replace the defective
part(s).
5. Check:
• circlips
Bends/damage/looseness → Replace.
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