Hello Members
I recently pulled out my old megatech nitro airstrike with a megatech .46 engine.
Last weekend I started the engine with two turns counter-clockwise and it ran fine until I tried to idle the engine to keep the plane from not moving. So I read up on some tuning tips to adjust the low speed needle but now I can't even get the engine to start. Every time I try to start it the propeller nut comes loose and I have also noticed the engine has become a but tighter at TDC.
To cut the long story short
I have read the megatech engine are know to stall and have starting problems so should I get a more reliable engine like the OS .46ax or keep trying to work on the megatech engine. The reason I ask for a new engine is a few years ago when I tried to get the plane airborne the engine failed right after takeoff and crashed twice on two different occasions which got me frustrated and made me quit.
I dont't want that to happen now if the Megatechs are known to stall.

Any help or suggestions would be appreciated.

Thank you