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Originally Posted by cobrashoch
OLD DOG - A switch on the positive side would still kill the power to the engine electronics/coil, so that makes no difference, the engine would still die.
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I think this depends. An alternator needs a voltage supply to start generating electricity, but once powered, it will continue to generate power without a battery as long as you keep it turning. If the alternator ties back to the battery and the switch is after this junction, then yes opening the switch will kill the engine. However, if the alternator ties in after the switch, opening the switch only takes out the battery, and the alternator will continue to power and run the engine (assuming engine is running when switch is opened).
I'm thinking the alternator wire does tie directly to the battery terminal, so yes the switch would be after the tie point.
Are we in agreement?