Yamaha YFM25RY Automobile User Manual


 
TRANSMISSION
5-64
EAS26280
CHECKING THE TRANSMISSION
1. Measure:
Main axle runout
(with a centering device and dial gauge)
Out of specification Replace the main
axle.
2. Measure:
Drive axle runout
(with a centering device and dial gauge)
Out of specification Replace the drive
axle.
3. Check:
Transmission gears
Blue discoloration/pitting/wear
Replace the defective gear(s).
Transmission gear dogs
Cracks/damage/rounded edges
Replace the defective gear(s).
4. Check:
Transmission gear engagement
(each pinion gear to its respective wheel
gear)
Incorrect Reassemble the transmis-
sion axle assemblies.
TIP
When reassembling the main axle, press the
2nd pinion gear “1” onto it “2” as shown.
5. Check:
Transmission gear movement
Rough movement Replace the defec-
tive part(s).
6. Check:
•Circlips
Bends/damage/looseness Replace.
Main axle runout limit
0.06 mm (0.0024 in)
Drive axle runout limit
0.06 mm (0.0024 in)
a. 102.2–102.4 mm (4.02–4.03 in)