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Hi,

I lost the directions to the tachometer installation and I forget which color wire goes where. I have black connected to a ground but I'm not sure about the red and green wires. I hooked red to the positive side of the coil and green to the negative side of the coil. I had it hooked up and working a year ago but it does not want to work now. I already spliced the red tach wire into the distributor wire (no big deal, I can fix that if I screwed up). Would that cause any trouble?

Thanks,

Justin
 

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If they're anything like autometer and I'm not saying they are...Autometer needs a power, signal and ground. I'd would hook red to switched power and green to coil (if an autometer)

You might cal them, I've found them to be helpfull.
 
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