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08-22-1999, 08:21 AM
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Registered Member
Join Date: May 1999
Location: Union, Ohio, USA
Posts: 582
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Tachs work by reading the amount of pulses coming out of the negative side of the coil. Hook it up as follows: White wire to fuse that dash lights are powered by, black wire to ground, red wire to a constant hot(+)wire, and green wire to negative side of coil. If it does not work properly then see if your ignition has a tach output wire on it and hook the green wire up to that. Hope this helps!
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