The odd thing is it will run just fine, not just idle but running down the road at as close to road speed as I care to drive it, without issue. After some amount of time, which no doubt equates to heat build-up, it starts to behave as described earlier.
I've not had it happen, ever, idling and I have let it idle for long periods of time just to observe. By long periods I mean hour(s).
I have not tested the coil when it is behaving as described. Last night I let it come up to temp, then pulled the coil and measured the aforementioned resistances. Perhaps I should run it until it starts acting up and re-check the resistances?
Thanks,
Joshua L. Coder