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Recent content by Roch

  1. R

    2010 Mercury 90hp 4 stroke efi tachometer problems

    Hey guys! My tachometer on my dash is not working. I am getting 13v on the ignition terminal on the tach, but also on the signal (gray wire) What I've been finding on the net is that you need an AC signal coming back from the engine to your tach? The same circuit has been overheating and...
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