Assembling the crankcase
– Remove the engine retainer from the stand.
– Apply a thin film of grease to the crankcase sealing surface
and fit a new gasket.
– Lay down the left-hand crankcase half and tap it with a plastic
mallet until it is properly positioned.
– Ensure that the crankcase gasket is properly seated.
– Grease the crankcase screws, their threads and the cylinder
head resting surface. Fit the screws and tighten them (for the
lengths of the screws, refer to the diagram).
– Check that all the shafts can move smoothly before and after
tightening the crankcase screws to 10 N·m.
– Clamp the engine in the stand.
– Accurately cut off the gasket that protrudes from the cylinder
base and the sealing surfaces.
– Check to see if the key is fitted to the crankshaft.
– Carefully oil the free wheel and the needle roller cage in the
free wheel gear.
– Insert free wheel gear 1 into the free wheel hub and fit all the
components together on the crankshaft.
The primary pinion flange nut will be fitted at a later stage.
1
NOTE: This diagram shows all the
lengths of the carter fixing screws.
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