Sincraft, Sounds like too many cooks in the fire with your engine. I have an idea of what's wrong with your motor, but let's see if Don chimes in. He's the brains of the outfit.

My engines are tuned for reliability, not for every last rev. I usually go all year without messing with them. This year being the exception, with my 70 Surpass going bad. Don's gonna rebuild it for me before Spring. I have the parts already. I'm sure I didn't touch the needle on my Saito 50. What a sweet runner that is!