RCS 150 Radial
First IĀ“d like to thank RC Showcase and Mike Dooley for the great service regarding my purchase of this beautiful radial engine!
I have one minor and one bigger issue with the engine.
IĀ“m running the recommended 26x16 prop for break in. 95octane gas with a good quality oil. (Castrol TTS) mixed at 30:1.
2300mAh 4-cell Ni-mh on ignition.
I canĀ“t seem to get the midrange adjusted properly. When it is running good on full throttle and the idle is good, the midrange is way too rich and it drops a sylinder.
When I adjust the needles, especially the low end needle, I can get it perfect on midrange and on full throttle, but when the needles is adjusted for optimum performance between 1500-1800 and full throttle, it is way too lean on idle and just dies when I close the throttle.
I know the prop is on the light side, and it will probably get better with more prop. But I donĀ“t think it will be the complete cure.
The last time I ran the engine, it suddenly got starved for gas. It would not run past 1/3 throttle and adjusting the needles had no effect.
The fuelfilter was nice and clean. I havenĀ“t checked the screen in the carb yet. The ignition battery was newly charged.
What do I check?