[rpmerf]

I was wondering if something like that was happening. I was thinking if that was the issue, after sitting for 20-30 minutes with a hot engine, it should clear out, if only for a little bit.

I do have the 1/4" carb gasket, which insulates the carb from the intake more than the thin paper gasket.

I'll try to get the original air filter assembly connected, and see if that helps