Quote Originally Posted by Cobra190 View Post
Sea Foam. it can be bought at auto parts stores and alot of Wal Marts carry it now. It is a great fuel additive and can be used as a winterizer for EFI engines. this stuff works great to clean out all fuel systems and will clean the carb as you run your boat. just add to your gas and go.
I'm also a big fan of Sea Foam. My boat was running rough earlier in the year, one treatment of that stuff and it cleared up, got it at NAPA.