Kill switch with positive ground question

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I am nearing the end of my rebuild of a 71 commando. Like the title says, I kept the positive ground. I've installed a tri spark electronic ignition and the sparx 3 phase system. I've got a tricon switch. Does anyone know Where to connect the kill switch wire?
 
gprust said:
I've installed a tri spark electronic ignition and the sparx 3 phase system. I've got a tricon switch. Does anyone know Where to connect the kill switch wire?

Unfortunately it's not that simple. Not because it's positive ground, but because of the Tricon. The Tricon kill switch/button is another "ground" switch intended for use as a magneto cut-out.

To use a ground kill switch with a battery powered electronic ignition system like the Tri-Spark you will probably have to fit a "normally closed" (or a "change-over") relay with the switch on the ground side of the relay operating circuit and both relay circuits powered from the ignition switch instead of one fed directly from the battery (to terminal 30) unless you were to add yet another relay to isolate the electronic ignition when the ignition is switched Off.
 
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