I bought my Jubilee already converted. It would crank and most of the time not start until I stopped cranking, then the battery voltage came up and it would fire the instant the battery voltage returned to normal
I carried a spare ballast in my Cuda. If the engine fired when cranking and stopped the instant I turned the key to run, it had a bad ballast.
My 1668 cuda was the same way.
All cars back in the 60's were wired to apply full battery voltage to the coil when cranking.
If you don't by-pass your ballast and it runs, someone installed too small of a ballast resistor.
I wish we had an old mechanic on YT to confirm the ballast was bypassed in the 1960s and some old tractors also by-passed the ballast.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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