Yamaha YFM90RA Model Vehicle User Manual


 
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ENG
EAS00425
CHECKING THE TRANSMISSION
1. Measure:
main axle runout
(with a centering device and dial gauge )
Out of specification
Replace the main
axle.
Main axle runout limit
0.08 mm (0.0031 in)
2. Measure:
primary drive gear shaft runout
(with a centering device and dial gauge )
Out of specification
Replace the drive
axle.
Primary drive gear shaft runout limit
0.08 mm (0.0031 in)
3. Measure:
drive axle runout
(with a centering device and dial gauge )
Out of specification
Replace the drive
axle.
Drive axle runout limit
0.08 mm (0.0031 in)
4. Check:
transmission gears
Blue discoloration/pitting/wear
Replace
the defective gear(s).
5. Check:
transmission gear engagement
(each pinion gear to its respective wheel
gear)
Incorrect
Reassemble the transmission
axle assemblies.
6. Check:
transmission gear movement
Rough movement
Replace the defec-
tive part(s).
TRANSMISSION