I have been modifying DOHC CB750/900/1000/1100 bikes starter clutches for a couple of years now. I have been working on a way to do the same to the SOHC starter clutches. I Believe that I have finally suceeded. I remove the old starter clutch. I turn the large gear's journal down so it fits the...
When I remove the left crankcase cover for the spark advancer, I notice that the starter clutch wheel is somewhat loose; it has a slight wiggle, and the spark advancer unit can be pushed in by a millimeter or two. When it’s pressed in, I can apply a bit more force to ‘push’ the crankshaft (I...