Re: Neek a new kill switch key.
I confess I'm not familiar with that particular model, but that is the purpose of it. The lanyard clips to your life vest, and when you fall overboard it yanks free of the switch and turns the motor off. Don't laugh, I personally know of a couple of guys that fell out and the boat went around in a circle and came back to run over them. Both guys now have a nice headstone.