ORIGINAL: Indy Park Flyer
opjose,
I understand he was able to get the engine to start and run. I had the exact same symptoms with my Evo 46, the engine would start and run, but would only idle for a short time, and the engine would stop if I tried to increase the throttle. The problem as diagnosed and repaired by horizxon was a bad rear bering. Once the bering was replaced, the engine ran great and continues to run great 3 years later. I was just suggesting maybe a call to the Horizon Hobby techs would be helpful.
A bad bearing would prevent the engine from turning over properly, introduce all sorts of vibration, etc.
It is likely that Horizon fixed the real problem during the exchange of the bearings, not the other way around.
e.g. a bad seal, carb fitting, etc.
I bet I could have fixed your engine without replacing any bearings.