Oh one last thing. I added a dpdt button on the brake so i could wire the safety like the newer machines so it will no longer drive by itself. I must lock the brake to get off the seat.
Brake must be down to crank.
So you need the normal open contacts for that. Then close with the brake pressed to allow the starter to crank.
For the shutdown, because it has the m18, it had the ignition switch changed for the magneto shutdown. So i used a relay.
Wire the relay contacts, common to ground. Normally open to the kill wire.
Then the seat switch gets a Normally closed switch. Ground one side. The other side goes to the second set on the dpdt brake switch.
With the wire from the seat going to the brake you need the Normally closed contacts. Take that to the relay coil. The other relay coil gets 12v keyed from the fuse.
This makes you have the brake or seat or both pressed to run. If you do not lock the brake and get off. It completes ground from the seat switch to the brake switch to the relay, that kills the engine using low current switches without needing to worry about the magneto killing the contacts so fast.
If you used high current switches then you would probably be fine without a relay. But i only found low current options for one that was dpdt and mounted with no physical modification.
My knee gets very close to the hydro lever getting on and off. So i really wanted this to prevent me from a big mishap
I did not use the original reverse switch that shuts off the pto. I look behind me before backing up.
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