Derbi Rambla 250 Manual page 90

Engine
Refitting the driven pulley
- Refit the clutch bell.
Drive-belt
- Make sure that the driving belt is not damaged.
- Check belt for correct width.
Characteristic
Driving belt 250 4T - minimum width
19.5 mm
Driving belt 250 4T - standard width
21.3 ± 0.2 mm
During the wear checks foreseen in the scheduled
maintenance services, check that the rim bottom
of the toothing does not show signs of incisions or
cracking (see figure): the rim bottom of the tooth
must not have incisions or cracking; if it does,
change the belt.
ENG - 90