ORIGINAL: VetteV12
that's what I'm curious about. I read a post on rcgroups that when using the Bison Pitts muffler like I am most guys had to pinch off one of the exhaust pipes to get enuf pressure in the tank. I really don't want to do this but I will if nothing else works.
Ya know this is also a possibility and one of the reasons I generally avoid that type of muffler myself, But I have run across several two stroke set ups with various engines and various pitts or box mufflers with double outlets that the fellows were having troubles with and were improved by plugging the second outlet.
These types of mufflers tend to be treated as 'One size fits all' but thats not really the case. At any rate it is really simple to just stick a plug, cork or whatever in one side and give it a go.
John