I run a magneto on about everything. But, this latest one on the panhead has been a SOB. It will spark on the bench, but - not in the motor. I think the points have some kind of coating on them that's not allowing them to ground properly. So, out comes the Delco Points File. Somethin's gotta give or I'm sayin' fuck it and goin' fer a timer and coil . . . and battery . . . and a switch . . . yuk !