Hello guys; Been working on rewiring a shorted out harness. Also replaced the spark plugs, points, condenser, dist cap. Tried to start today. Cranks over good, but no start. I'm getting spark across the points, but looks weak, battery chg good. I tested for spark with a spark plug tester and no spark there. Also tested the primary wire from coil to eng block 3/16in gap and no spark. I called about a coil today and the parts guy asked me if there was a resister in the circuit and there is, but whoever had the tractor before had put in a jumper wire bypassing the resister????????? So is there a difference in coils that has a resister in the circuits? And should I remove the jumper wire. The tractor originally had a generator, but now has an alternator.