I recently had my banshee in the shop because when it gets warm it wants to throttle up and stick and will not come down unless you shut it off. After a 140.00 and the carbs gone through, new needle valves, and a leak check, I still have nothing. They did the leak test and the outer crank seals and boots were good. in there conclusion to the problem they said that the "inner seal" is bad. They did some check by putting a piece of paper over a spark plug hole and did a pressure test and it failed. As far as to my knowledge there is no such thing as a inner crank seal on a banshee. If someone can enlighten me on this situation or educate me so I don't have to put 1800 in a rebuild, I would appreciate it. Please help me out.
thanks