I just had purchased a banshee recently. The right side pipe smokes a BIT more than the left (yes it is a noticeable amount, no its nothing crazy. it also has no smell). It leaves the right silencer wet and it also spits oil were the expansion chamber and silencer pipe meet. It smokes more at idle when cold but not so much when it warms up...It spits oil regardless of temp. The right side pipe does not warm up near as fast as the left. The left side seems to "ping" alot harder than the right as well. Right side plug was wet/black when checked. I know no one here can tell me just based off this what is going on.... but im looking for educated guesses and points in the right direction.... Just praying its not a crank seal on the right side......