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Old 12-28-2016, 10:35 PM   #1
custom10nut
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Join Date: Apr 2015
Location: East Tn (In the heart of the Smoky Mtns)
Posts: 1,882
Tach help needed

I just replaced my printed circuit to get all my lights working again.
My problem now is my tach reads about 500 rpm low at idle.
There's no way my engine will idle at 200 rpm.
Everything worked and the tach was real close to spot on, before I took my dash apart to change the bezel and do some other things.
Is there something I need to adjust other than the screw in the back (it will only adjust about 100 rpm).
Any input will be greatly appreciated
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