The clutch is disengaged by a drive unit consisting of a thrust piston (c) accommodated inside a small cap mounted to the generator cover. This piston (c) pushes a pushrod (b), which runs through gearbox primary shaft and operates the Pressure plate (4) located on top of the clutch plate pack (9).
Drive is transmitted from the crankshaft to the gearbox primary shaft by a gear integrated with the clutch housing/primary drive gear pair (a).
Accommodated in the clutch housing is a set of drive and driven plates (9). When the clutch is operated, the driven plates push away a drum (12) which is splined onto the gearbox primary shaft.
Before working on the internal clutch parts, check that the clutch operates correctly. Then deal with the problem in a systematic manner.
The following is a list of possible causes of clutch malfunctions.
A clutch which does not disengage may be caused by:
A clutch which slips may be caused by:
A noisy clutch may be caused by:
Crankshaft/connecting rods assembly
Special screw
Connecting rod assembly
Half bearing
Grub screw
Bushes
Crankshaft
Grub screw
Shim washer
Spare parts catalogue
Diavel abs connecting rods
Diavel carbon
abs
connecting rods
Important
Bold reference numbers in this section identify parts not shown in the
f ...
Reassembly of the clutch-side crankcase cover
Fit the plug (14) and the gasket (13). Fit the plug (17) and the gasket (15).
If the bush has been replaced, fully seat the new bush (7) in the slot in the
cover using a suitable drift and a press.
If the sealing ring (8) needs to be renewed, fit the new seal into the crankcase
cover, po ...
Cylinder compression test
Note
The on-screen icons used during this procedure are explained in a table at
the end of this section.
Engine performance is directly correlated to the pressure that can be
measured in the combustion chambers of the two
cylinders. Pressure which is too high/low or an excessive difference be ...