The PWR switch powers up the Hall device so I can see the trigger indicator without powering up the CDI which is what the IGN switch does. The Hall device remains powered when the IGN switch is turned ON allowing it to fire the CDI. - TerryTerry,
Looking at the wiring diagram, the hall device is powered when the PWR switch is turned on, Not switched on with the IGN switch, any reason for this? Just thinking out loud.