If necessary, rock the cylinder slightly using both hands or tap its base gently with a rubber mallet.
Continue to lift the cylinder until you can access the gudgeon pin (6).
Since insertion of piston in the cylinder is a difficult operation to perform at the time of reassembly, remove
the cylinder together with the piston as described below.
Block the crankcase opening with a rag or soft paper to prevent foreign material from falling inside.
Remove the snap ring (7) from the gudgeon pin (6) on the clutch side.