Shaft Drive - Yamaha XVS650 Service Manual

SHAFT DRIVE
E87Q7010
TROUBLESHOOTING
The following conditions may indicate damaged shaft drive components:
A
I
Symptoms
1.A pronounced hesitation or jerky move-
ment during acceleration, deceleration, or
sustained speeds (This must not be con-
fused with engine surging or transmission-
related movements.)
2.A rolling
II
rumble" noticeable at low
speeds, a high-pitched whine, or a lIc1unk"
from a shaft drive component or area
3.A locked-up condition of the shaft drive
mechanism or no power transmitted from
the engine to the rear wheel
Possible causes
A.Bearing damage
B.lmproper gear lash
C. Damaged gear teeth
D. Broken drive shaft
E. Broken gear teeth
F. Seizure due to lack of lubrication
G.Smali foreign objects lodged between
moving parts
NOTE: _
Causes A, Band C may be extremely difficult to diagnose. The symptoms are quite subtle
and difficult to distinguish from normal operating noises. If there is reason to believe these
components are damaged, remove them for individual inspection.
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