Inspecting The Clutch; Pin Retaining Collar - PIAGGIO MSS Fly 50 4T Workshop Manual

Engine

Inspecting the clutch

- Check the thickness of the clutch mass friction
material.
- The masses must not show traces of lubricants;
otherwise, check the driven pulley unit seals.
N.B.
UPON RUNNING-IN, THE MASSES MUST EXHIBIT A CEN-
TRAL FAYING SURFACE AND MUST NOT BE DIFFERENT
FROM ONE ANOTHER.
VARIOUS CONDITIONS CAN CAUSE THE CLUTCH TO
TEAR.
CAUTION
DO NOT OPEN THE MASSES USING TOOLS TO PREVENT
A VARIATION IN THE RETURN SPRING LOAD.
Characteristic
Check minimum thickness
1 mm

Pin retaining collar

- Remove the collar with the aid of 2 screwdrivers.
- Remove the three guide pins and the mobile half
pulley.
ENG - 66
MSS Fly 50 4T