View single post by Rick in Miami
 Posted: 01-29-2019 12:09 am
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Rick in Miami

 

Joined: 02-17-2015
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When you removed the JH tach, the white wires to the back of the tach need to be connected together as power to the coil went through the original tach. The sense wire to the SpeedHut tach needs to be connected to the negative side of the coil. The red pertronix wire needs to be connected to a 12v source. If using a ballast resistor, wire the pertronix to th 12v side.