Yamaha YFM25RY Automobile User Manual


 
SWINGARM
4-55
EAS23340
REMOVING THE SWINGARM
1. Stand the vehicle on a level surface.
WARNING
EWA13120
Securely support the vehicle so that there
is no danger of it falling over.
TIP
Place the vehicle on a suitable stand so that
the rear wheel is elevated.
2. Measure:
Swingarm side play
Swingarm vertical movement
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a. Measure the tightening torque of the swing-
arm pivot shaft nut.
b. Measure the swingarm side play “A” by
moving the swingarm from side to side.
c. If the swingarm side play is out of specifica-
tion, check the spacers and bearings.
d. Check the swingarm vertical movement “B”
by moving the swingarm up and down.
If swingarm vertical movement is not
smooth or if there is binding, check the
spacers and bearings.
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3. Remove:
Pivot shaft nut
Washer
Pivot shaft
Swingarm
EAS23360
CHECKING THE SWINGARM
1. Check:
Swingarm
Bends/cracks/damage Replace.
2. Check:
Pivot shaft
Roll the pivot shaft on a flat surface.
Bends Replace.
WARNING
EWA13770
Do not attempt to straighten a bent pivot
shaft.
3. Wash:
Pivot shaft
•Dust covers
•Spacer
Bearings
4. Check:
•Dust covers
•Spacer
•Oil seals
Damage/wear Replace.
Bearings
Damage/pitting Replace.
Pivot shaft nut
100 Nm (10.0 m·kg, 74 ft·lb)
Swingarm side play (at the end
of the swingarm)
1.0 mm (0.04 in)
Recommended cleaning solvent
Kerosene