hey wayne-in--tn

If a motor did that to me, the first thing I would check is if I got a bad condenser out of the box. I have done that once in the last half century and I had to wave down a pull back to the dock.

Indexing seems to me as I recall an ole hot rod term for making sure the points align perfectly when they make contact. I may be wrong on that one. When someone whoops something like that on me I put on my best cooter look and say "that sounds interesting, how do you do that."

Another thing to check on the Dubuques when they die mysteriously is to jump a wire from the post on the starter to the coil (Batt side) that will eliminate whether or not you have the grungy ignition switch problem.