Moparwench
New Member
I have a 1971 Shovelhead w/kickstart. It was running fine with the exception of the front cylinder fouling a plug now and then. Then my husband got the bright idea to "power wash" it. That night we went riding and I was pushing it pretty hard on the freeway for about 5 miles. When we got off the freeway it started putting and backfiring like a plug was fouled. Put in new plugs started her up and it was still doing the same thing. After the bike cooled down it started and ran like there was nothing wrong. Figured it was the coil and put on a used one. Took it for a ride and it ran fine til it was warmed up and the same thing happened. This time put on a new one, same thing happens. My husbands idiot friend put the plug wires on the coil backwards. So I switch the plug wires back where they are supposed to be and tightened up the battery cable (ground was pretty loose) and ignition contacts. Same thing. Thought the wire thing might have screwed up the coil so again with a new one. Took it out and it is still doing the same thing. (EDIT) oh, and every time the front plug was fouled, black and wet. It also started to hesitate if I accelerate at a normal speed, in first and second gear. If I blast thru first and second it doesn't. What would cause this?? Where do I start now??
Please read this...
Please read this...
Last edited by a moderator: