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If it has a C.H. ign. system it makes all the difference in the world, This is probably a gasoline engine, why else would you need an ign. system

Uh, the carb will determine what fuel to use. A flyer at my club has ignition on all of his engines and they're glow. He gets idle rpm's to something like 1000. If it doesn't have a Walbro type carb then it is probably glow. Freebelle, after it is broken in you can run reduced oil percentages. I mix 5% nitro fuel to methanol 2:1. That yeilds approximately 12% oil content and somewhere around 3% nitro. ST's run well on little to no nitro. Mine turns a Zinger 18-10 at about 8000 with a Perry pump and an OS 7D carb. Good thrust!

Thanks for the input. The engine has the stock carb on it and the CH ignition was done by CH. Looking forward to flying this thing.