Ok, my shee has ran good most of this winter, I tried this new gas, and messed with the air screw a bit cause it was warmer, well it started missing in the topend. So I jetted up, and got a different gas, and some new plugs(B8ES). Now it will idle for a bit, but when you rev is misses real bad, wont reach the powerband or nothing. Its terrible. I have 340 mains in it right now, and 30 pilots. I'm starting to think its something with the electrical, not positive. Its impossible to do a plug check although I did let it run for about 5 min, revving periodically, I pulled the plug and it was spotless, a dab of oil on each bridge of the plug. Also, its spitting hella oil out of the pipes. Any ideas please, please, please post!