05-15-2006, 08:06 PM
Sounds odd... Just a thought. I had a similar problem with a Mach engine last summer. Take the engine out, and SLOWLY try to turn the throttle arm on the carb. If it won't turn, that's a good thing. The Mach I had wouldn't idle. When I took it out, I noticed the throttle arm would turn (I could completely turn the slide inside the carb). I found out the tip of the idle screw was broken, and wasn't opening the carb to idle.