Put my Dyna ignition today and thought I followed the instructions pretty good and went to start it and it backfired thru carb #1. So I reversed the blue and yellow wires and it ran. So I started messing with the timing and It wouldn't run for CRAP! ( only spelled with 4 other letters ). So I look back at the carbs and found #1 cylinder was choked all time. I had to loosen the choke lever to get my Sync adapters to go in and had loosened it to much. So I tore the top loose enough to get the cap off and repair the choke plate. Then I found it would run. But only on #1 and #4 pipes 2-3 were cold. I had power to the coil but plugs 2-3 were fouled. I replaced all plugs and it fired right up. So tommorrow will be timing light and carb sync.