TIP: A Killswitch can always be used both as an opener and as a closer.
Possibility 1) The switch is placed as a bridge in the cable of the excitation current to the CDI. Possibility 2) The switch is also placed on the cable of the excitation current to the CDI and on vehicle/engine ground.
Depending on the position of the switch, the excitation current is routed to the CDI or diverted to ground.
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