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Troubleshooting
The following conditions may indicate damaged shaft drive components:
Symptoms
Possible damaged areas
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1. A pronounced hesitation or "jerky" movement during accel-
A. Damage to bearings.
eration, deceleration, or sustained speed.
(This must not be
B. Improper gear lash.
confused with engine surging or transmission characteristics.)
c.
Gear tooth damage.
D. Cam damper damage.
2.
A "rolling rumble" noticeable at low speed; a high-pitched
whine; a "clunk" from a shaft drive component or area.
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3. A locked-up condition of the shaft drive mechanism; no power
E.
Broken drive-shaft.
transmitted from engine to rear wheel.
F.
Broken gear teeth.
G. Seizure due to lack of lubrication.
H.
Small foreign object lodged between moving parts.
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Damage areas A, B, C, and D above may be extremely difficult to diagnose. The symptoms are
quite subtle and difficult to distinguish from normal motorcycle operating noise.
If there is
reason to believe these components are damaged, remove the components for specific inspection.
5-49
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