Kevin, I agree with Ken Powell that it still sounds mostly like fuel starvation, probably in the carb. So I won't beat that horse... However, if following those suggestions doesn't fix it, then consider:
Since you have definitely identified temperature as a culprit, that points at 2 possible causes: fuel vaporization and detonation. Vaporized fuel going to the carb could cause a scenario where the bowl cant fill. Also, detonation could behave like what you describe. Maybe you cooling flow is no sufficient.
|