Originally Posted by
Heli-NuBee
Switch, battery and spark plug were all checked. The problem seems to be a bit more complicated than that. I strongly suspect a defective ignition.
Best wishes and good safe flying.
Heli-NuBee (AKA Roger the radial rabbit)
just for giggles... try a new spark plug .... I had a plug that appeared to be working when checked, but the engine wouldn't run consistently with it installed... new plug and problems went away immediately.