When the engine is just started, it runs great at all speeds. However, when it warms up, after about 15 mins of running, it will not idle. It idles on 1 cylinder then eventually stalls. In addition to start it I have to start it in gear at 1/4 throttle setting. It has new points, condensors, plugs, carb rebuilt, compression at 120 plus, rebuild in last 20 hrs. Help!
