susandiane
Member
Working on a 1950 77 that had a lot of electrical issues and a fully gunked TSX carb. Had the carb cleaned, points and condenser applied with new plugs. Old plugs were badly fouled. Coil seemed weak so a known good one applied. Starts lovely with about 1/3 throttle and choke on, instant fire up. After a minute or so, it begins an irregular backfire with flame from carb intake. I enriched the main and idle jets a bit, but didn't seem to make a difference. I think there may be some cross firing in the plug wires which I'll address, but I don't want to dink much with the carb without some insight from people who know. What would you all recommend?