Hmm, ok I reseated the carb and it didn't make much if any difference in temp or performance, I have yet to pull the motor out and check it as it's running great. I mean it runs strong and I really have nothing to complain about the LSN is a little on the rich side to keep the motor temps at bay, 235-240 consistently, maybe it's the new fuel.. I switched from Werks to Byron's maybe it's just running differently from what I was used to before..

Hey the rubber gasket you're talking about, are you referring to the backplate seal? That little o-ring?

Thanks all