Wiring in a KILL SWITCH

Lot'sa ways to do that, the electric pump is a good one

If you don't have a pump, and stock ignition, one way is to run a wire from the coil NEG post, and if you have a tach, it's already there. Install a small hidden switch to ground that wire.


Most people don't suspect a tach wire, and wont' spend much time looking

Some guys who don't smoke actually use the lighter as a switch.

You could use it to ground your tach wire as above, or to operate a pump relay coil when running.