THanks for the reply. I really apreaciate it. IF the compression on my Cady is too poor to run, I figured the first step I shall take is to replace the head gasket and to replace piston and rings. I dont think Im gonna put a performance kit on it now that I understand what t ype of moped it is. I do not have a pipe or airbox on it, and Im wondering if when I get it running that could cause damage. And is the CAdy pipe the same as the other motobecane pipes? SOmeone told me its different. Thanks again.