I have a "pull to stop" knob on my diesel and i have a clip that holds it in the stop position, low tech but it could fool a hurried thief.
 
I have a marine isolator switch (the one with a big red key) on the positive wire and is located in the seatbox. Annoying thing with it I forgot to put a permanent live to my radio so it has no memory of stations. Other than that it works perfectly
Is your battery located in the engine bay? If so did you loop under the bulkhead to put the switch in the seatbox? thanks everyone for your help on this
 

Similar threads