Shaft Drive; Troubleshooting - Yamaha XVZ13TF 1999 Service Manual

SHAFT DRIVE

TROUBLESHOOTING

The following conditions may indicate damaged shaft drive components:
A
1.A Pronounced hesitation of jerky movement
during acceleration, deceleration, or sustained
speeds (This must not be confused with
engine surging or transmission-related
movements.)
2.A rolling "rumble" noticeable at low speeds, a
high-pitched whine, or a "clunk" from a shaft
drive component or area
3.A locked-up condition of the shaft drive mecha-
nism or no power transmitted from the engine
to the rear wheel
NOTE:
Causes A, B and 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 dam-
aged, remove them for individual inspection.
Symptoms
SHAFT DRIVE
B Possible Causes
A. Bearing damage
B. Improper gear lash
C.Damaged gear teeth
D.Broken drive shaft
E. Broken gear teeth
F. Seizure due to lack of lubrication
G.Small foreign objects lodged between
moving parts
7-74
CHAS