Thanks for the advice Jason. I have a Champion RL86C I believe its the same as an L86C. I have it gapped to 0.018, which is what a Champion Reference Guide on mopedriders.org says. The Cady service manual however, says a different gaps, buyt also for a different plug. Not sure which one I should follow. Anyways Ill probably end up purchasing a whole new carb. AS for the main jet, how far does it have to be screwed in? Theres a whole strait through the jet, and I wonder if that hol, has to line up with the whole in the carb. You proably dont know what Im talking about but thats ok. Ill most likely buy a dellorto with a jet size similar to the Gurtner's 215.