>How do I determine which wires are common power and which wires go to coil >1,2,3,4 respectively? With an ohmmeter. Draw a schematic of a motor, then measure the resistance between each point. This will tell you. Andy ================================================================== Eternity is only a heartbeat away - are you ready? Ask me how! ------------------------------------------------------------------ andy@rc-hydros.com http://www.rc-hydros.com - Race Boats andy@montanadesign.com http://www.montanadesign.com - Electronics ==================================================================