APRILIA Tuono V4 1100 Factory Service Station Manual page 334

Engine
Characteristic
Maximum deformation permitted on the thrust
plate compression surface
0.15 mm (0.0059 in)
Maximum depth of the thrust plate
27.3 mm (1.07 in)
Checking the clutch hub
Check the clutch hub for damage and wear that
may result in clutch irregular operation. If neces-
sary, replace the hub.
Checking the springs
NOTE
THE FOLLOWING PROCEDURE IS VALID FOR ALL CLUTCH SPRINGS.
•
Check the springs for signs of damage,
and replace them if necessary.
•
Measure the free length of the clutch
springs, and replace them if necessa-
ry.
Characteristic
Minimum wear limit with individual clutch
springs in release position
46.8 mm (1.84 in)
ENG - 334
Tuono V4 1100 Factory