Re: Wiring kill switch on vanguard 23
So the wire going to the block is the ground. Your kill switch should connect to that and to the wire that goes to the key for the on position and gives you power to the solenoid. A little FYI you don't have to pull the kill switch, the red/orange button on the end is a "button" so push it in to kill the motor as well. I like to wire a Y connection on the power side of the kill switch this allows you to use the key to kill the motor or the kill switch. If you use bullet connectors you can isolate the kill switch if it goes bad and still use the key to kill the engine. Hope this works for you. Use a multimeter to check for power on the wires to see which one is hot with the key on then dead with key off. That should be the wire you want to ground out to kill the engine.