PIAGGIO MSS ZIP 100 4T Service Manual page 45

MSS ZIP 100 4T
Possible Cause
Excessive steering clearance
Noisy suspension
Oil leakage from suspension
Operation
Check the tightening of the top ring nut. If irregularities continue
in turning the steering even after making the above adjust-
ments, check the seats in which the ball bearings rotate: re-
place if they are recessed.
If the front suspension is noisy, check: that the front shock ab-
sorber works properly and the ball bearings are good condition.
In conclusion, check the tightening torque of the wheel hub, the
brake calliper, the shock absorber disk in the attachment to the
hub and the steering tube.
Check that the swinging arm connecting the engine to the
chassis and the rear shock absorber work properly
Replace the shock absorber
Troubleshooting
TROUBL - 45