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Old 06-27-2014, 02:38 AM
SuperNovaSS SuperNovaSS is offline
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Default Re: Stewart Warner 970 tach and 990B module

I think they are 12 volt only. I've never tried 6 volt. I can post a diagram tomorrow. The wiring is very simple. The monitor is basically a junction block. The only terminals with one wire are the distributor and tach terminals. The distributor terminal goes to the negative side of the coil and the tach terminal is the green wire from the tach. The white wire is the light, black is ground, and red is power.


Jason
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