I have the old style ignition I have check the batteries a dozen or so times, Li-ion with 6V regulator and have tried a different regulator with no change but I will try the battery next.
And the choke is manual no servo and no fuel filter I have replaced the entire fuel system 3 times and even stripped the one out of another plane that was working and still have the same problem, have gone though the carb replaced gaskets, tried different fuels.
the ignition is the only thing that not been replaced.

Carroll-RCU described the exact problem. Now if you can tell me who AI is?

Wyldman