Thread: Tach inop
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JFairman JFairman is offline
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Join Date: Jul 2006
Location: S. Florida
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There is also Palo Alto Speedometer.
Palo Alto Speedometer: Repair, Restoration, and Sales of Automobile Gauges

Both places are good but NHS wouldn't sell me parts and Palo Alto did.

I would check the red/black 12 volt supply wire going to the tach, brown ground wire, and continuity of the black/purple trigger wire going from the 6 pin CDI plug to a spade terminal on the tach before sending it off.

If the ground is bad the tach's instrument lights won't work right and will try to use the boost gauge sender wire as a ground.

Last edited by JFairman; 07-11-2010 at 05:30 PM..
Old 07-11-2010, 05:22 PM
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