ORIGINAL: Left THumb
So far I have run it at 4000 RPM for 10-15 minutes and closed the high speed throttle from the 2 1/2 turns to 1 and 1/2
Maybe that's the problem?
Bring the engine to full open throttle, and open the high-end needle until you are blowing some smoke out, then, open it a little more.
Cool Power is 17% oil, that should be plenty (It's what I break all of my engines in with)