Ok. From the top, here we go. I bought the shee, it ran fine. A few months later a piston ring blew on the left side. Rebuild...new wiseco pistons, bored out, new gaskets, new reeds and cages. Head is pitted on the left side still (buying a new head soon.) Anyway, rebuild, broke in engine fine. Left side feels too hot for my liking, but runs good. Well, Ive never ridden any other banshee before, so I dont know what its supposed to feel like. Right, so I dont know why, but it idles too high. adjusted the idle screws, no change at all. It feels like there is no power. I have symptoms both a lean and rich engine. From the faq, here is what Ive got...Rich-whenever you have the throttle pinned (or Wide Open Throttle=WOT), the motor doesn't continue building RPM, plugs are black and wet. Lean-hesitation,or revving high & fast with no power, , when you start it up with the choke "on" it's fine, but when you turn the choke off it idles very high So what the hell?