ha ha yeh the [Censored] thing was in there and did not notice till i took the cover off " a usaual sing the mower has reached the end" this one i use for mowing so i rplaced it with a new one for easy starting
so back to the ignotion would a cdi unit say such one on a two stroke dirt bike for example be adaptable to curve the timeing as like you mentioned above wich i hadent thought of yet