": ok, this may be a really dumb question, but, when the petcock is all the way on, should it just be driping slowly out of the valve?? I don't think it is, but I don't know how different Mopeds are... BTW, where do I BUY a Petcock to fit a 1980 Motobecane?<p>It doesn't take a lot of fuel flow to keep a moped engine going. Maybe a little more than a ""slow drip"", but not a full stream. I believe that you can get a petcock from one of the online moped parts supply houses, or try your local shop. Try www.mopedsonline.com., and the same one to fit a Motobecane may fit other brands.<p>"