i am having the same problem with my 2002 cart. check the wiring harness plug at the front lower of the engine. one wire is grounded to the engine block and the other goes inside the engine. mine was pulling one of the wires out of theconnector, and if you slide the wire back in , the engine would shut off. i snagged the wireagain, but this time the engine will not shut off. i did replace the plug, but that did not help. there is a relay in the electrical box by the battery, remove the bolt at the top and the cover lifts off. there is a voltage regulator in there, a solenoid and the relay.