Inspecting The Rollers Case - PIAGGIO X8 125 Workshop Manual

Engine
- Remove the entire start-up crown unit with the
torque limiter.
- Remove the fixed driving half-pulley together with
the O-ring and the steel washer touching the bush-
ing.

Inspecting the rollers case

- Check that the internal bushing shown in the fig-
ure is not abnormally worn and measure inner
diameter A.
- Measure the pulley sliding bushing outside di-
ameter shown in the figure.
- Check that the rollers are not damaged or worn.
- Check the guide shoes for the variator back-plate
are not worn.
- Check the wear of the roller housings and of the
belt contact surfaces on both pulley halves.
- Check that stationary driving pulley does not
show signs of abnormal wear on the grooved edge
and on the surface in contact with the belt.
- Check that the O-ring is not pushed out of shape.
CAUTION
DO NOT LUBRICATE OR CLEAN SINTERED BUSHINGS
Characteristic
roller (200): Minimum diameter allowed
Ø 20 mm
roller (125): Minimum diameter allowed
Ø 18.5 mm
Sliding bushing: Minimum admissible diame-
ter
Ø 25.95 mm
movable driving half-pulley bushing: Maxi-
mum allowable diameter
Ø 26.12 mm
roller (200): Standard Diameter
ENG - 108
X8 125-200