im at a loss on this one. could have killed it, surprised theres no fuse.
i just wired up a push button starter to a commercial lawn mower. its got starter like a car, i ran one wire from the solenoid to the switch, and then power to the other side of the switch, hit the button it jumps the solenoid and makes the engine crank.
so pretty much, you turn the key, then hit the button to crank the engine. only thing is, you can crank it when the key is off, but its a lawn mower, not a big deal, i had to do this because the ignition switch quit working.