Where does the kill switch wire go?

The kill switch wire typically connects to the ignition system of a vehicle or equipment, interrupting the electrical circuit to prevent the engine from running. It usually connects to the ignition coil or the starter relay, depending on the specific application. In some setups, it may also be wired to the battery or main power supply to cut off all electrical power. Always refer to the specific wiring diagram for the equipment or vehicle for precise installation instructions.