APRILIA SCARABEO 500 2008 Service Station Manual page 132

Engine
Fixed driving half-pulley fitting
- Fit the spacer.
- Fit the fixed driving half-pulley and check that it
is in contact with the spacer and with the guide
bushing of the movable driving pulley.
- Fit the plain and the belleville washers as shown
in the figure.
- Fit the nut in the previous working position (nut
side in contact with the belleville washer)
ENG - 132
SCARABEO 500