tach problem
Ive got a 77 v with a 170 I/O with an original tach. It works ,but its about a thousand RPMs too fast. Anybody know if theres a way to reset or recalibrate this thing,or should I just buy another one. Its got four tiny wires coming out the back.
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77 V20 cuddy with 170 I/O Mercruiser
72 16ft. Carolina w/a 25hp Evinrude
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