Marble Mystery Oil & Sea Foam

I use Sea Foam and my mechanic swears by it. I pour it sowly into the carb until it floods out, then let it sit for 1/2 hr and fire her back up. It might backfire a bit on restart and get ready to be stopped by the cops for putting out a hellacious amount of white smoke when you do.

Another friend used to work as a mechanic for a dealership and they just used automatic transmission fluid to do the same thing.