Specifications
3
37
ASSEMBLING AND TESTING THE ENGINE
3.7.3
3.7.4
TESTING THE SPRINGS 
To ensure that the pressure between  the 
clutch  discs  is  correct,  you  must  verify  the 
wear-and-tear  state  of  the  springs.  The  mi-
nimum acceptable length is:
minimum length of the clutch springs: 33.3 
mm (new springs 33.8 mm).
TESTING THE CLUTCH DRUM 
The  clutch  drum is  engaged with the  dri-
ven clutch discs by means of teeth A: verify 
that the teeth do not present any seizing or 
abnormal  wear-and-tear.  If  so,  replace  the 
drum.
Testing the teeth of the clutch drum.
Measuring the length of the clutch springs.










