Author Topic: 1980 Drifter 440 open or closed  (Read 258 times)

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whitley1983

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1980 Drifter 440 open or closed
« on: March 02, 2020, 11:02:18 PM »
Hey, quick question, I have to add a tether kill switch onto my sled and I need to know if the electrical system is a naturally open or naturally closed system. Also if anyone has installed a tether kill switch and would be willing to give me some basic instructions on how to do it that would be awesome! Thanks
-Jake
1980 440 Drifter, 1978 440 Invader

whitley1983

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Re: 1980 Drifter 440 open or closed
« Reply #1 on: March 04, 2020, 04:13:47 AM »
If anyone is interested, it's an open circuit system, so to wire in the tether kill switch you have to splice one of the wires off the tether (it doesn't matter which one) to either the grey or the black wire coming from the back of the key switch that runs to the cdi, and then wire the other wire off the tether switch to the opposite wire you spliced the first one with. The black and grey wires running from the back of the key switch have to make contact to kill the engine, so the tether switch, when activated by pulling the tether, causes the black and grey wires to make contact, thus killing the engine. 
1980 440 Drifter, 1978 440 Invader