Fitting the two half-crankcases
Carefully clean the contact surfaces and
make sure that the three reference dowels are in the right place.
Carefully position the gasket and the clutch side half-crankcase. When
the engine is assembled, tap with a plastic hammer in order to match the
surfaces properly. Then screw in the twelve fastening
When the engine is completely assembled
there should be no play in the driving shaft axle and 0.2 or 0.3 mm
play in the gearbox axles.