Originally Posted by johnracer
In that case, something is forcing it way rich. I'd check the bypass. Pill might be plugged or something else restricting it. The blowing oil out of the breather might indicate a broken ring. Should do a leakdown test to confirm.
johnracer is on the right track. something is forcing it rich. Is it carbureted or injected? If it*s injected check to see if main or high speed bypass is installed backwards. Little arrow points to the tank, poppet valve in bypass on the pump side of the return. Grudge racing, late one night, I put my main in backwards, after doing my burnout I noticed the starter wiping his arms off and looking up at the sky. My zoomies had bathed him in cool methanol and he thought it was raining. LMAO
ops: I*m the leader of the pack when it comes to screwing up injection tune ups!