Should be a small dot on the side of one of the teeth on the camshaft & crankshaft gear. It is a small round dot, might have to shine a light on it to see it.
that is what I thought, but it doesnt run right. replaced blown head gasket and new seals on front. must have done something wrong. thanks fopr the info.
by the way ,what is the clearance for the valves? this is a 22 hp 2 cylinder