Captinjohn, the Ryobi runs great on glow fuel. Even with all that oil, and with the needles set unecessarily rich, it transitions very well. I think it will run even better when I drop the oil percentage to 5%. I don't think it needs 15% nitro either. I will try 0% first this weekend, but will probably end up mixing in a little nitro (<5%) for better overall performance.

I can't say enough about those Frank Bowman rings. I remember running the stock Ryobi on gasoline and CH ignition back when I first bought it. IIRC, I was getting around 7000rpm with an 18x8, maybe a little more. Swapping in the Bowman Ring got me some 500rpm gain almost instantly.

I start the Ryobi with my Tower HD starter. It had trouble turning it over on 12V initially, but started up no problem on 24V. I don't like hand flipping glow engines, so I don't know if this one bites or not. It's fairly low compression ratio engine (7:1?) so I doubt it does.