RE: YS experts need help
I have a YS 120 in my TopFlite P-47. A PERFECT match for this airplane as far as power most of the time I fly it at 1/2 - 3/4 throttle and the engine is flawless, it is inverted and has no glow lighter and have never had a flameout or idle problem. I have a 16/6 prop on it and it is a great match. My starting procedure is as follows Fuel it, turn the prop 10 full turns to pressurize the tank, throttle to 1/4, hit it with the starter and it fires every time. Once the engine is warm it will start with 2 flips by hand.
You should have no problems with it and i did run a music wire extension throut the cowl for the needle valve so any fine tuning can be done.