Having trouble finding a piston and for my 1983 kdx 200. This bike is in really good shape and surprises me everytime I ride it. Would like to freshen up the engine in the near future and would like any information on where I could locate a piston for her. I can find a complete engine gasket kit and wrist pin bearing but no piston. If any one else has one of these bikes please share any tech. tips you may have. Thanks