Quote:
Originally Posted by leddzepp
Brown wire goes to negative terminal on your coil, pink wire goes to 12v keyed power source. Make sure tach is grounded or it will fry. Tach is grounded through the cluster, but it never hurts to add a dedicated ground wire to the tach.
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Even better advise from leddzepp

Just make sure you have the 12V to a fused location. If you ever have a voltage regulator that sticks, it will blow the fuse and save the tach. No fuse = fried tach.
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