I've seen mixed reviews now on the GMS engines. I don't mind wrenching on things but I really just want to fly sometimes too. The fuel lines are all new. With the idle bar plug i could tune the high speed needle all over and find the correct settings. Run it a full throttle, richen it up until it begings to slow down and bog, or go the other way and lean it out until it began to die. My idle bar plug decided it didn't want to ignite and I replaced it with an OS8. No luck then, it wouldn't even rev past half throttle.

My muffler and carb are both GMS replacment parts. The original carb was broken at the same time as the muffler in a crash in my original BUHOR SPAD. Both pieces are GMS parts. I'm thinking about removing the carb again and using some RTV silicon to seal it up in the throttle body on the motor. I'm not sure that's the problem though. I'm also not sure exactly how to tell that it's an air leak. If anyone has any good methods please let me know.