13-09-2019, 07:00 PM
The mag is gear driven from the crankshaft with an intermediate gear between the two, and the camshaft is also gear driven directly on the other side of the crankshaft. In my experience the least reliable gear is the one on the camshaft. The keys in the system are on the camshaft, the crankshaft and the drive side of the magneto coupling. The easiest way to check whether the camshaft is turning is to check through a plughole whether any compression develops as you turn the crankhandle.
Robert Leigh
Robert Leigh