Is it possible that your glow ignitor is running too hot and there is nothing at all wrong with your engine?
Ive seen it happen. even with the battery ones.
maybe the problem is not the bearing but metal chips left in the crankcase at the factory
very possible. I didnt open up my heli engine (os. 50) ran good the first start, then it wouldnt start back up. take out the plug and there is pieces of FUEL TUBING in it! wasnt the kind I use so I know it wasnt me. but I always check a new engine first just didnt on that one.
