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Old 04-16-2026, 01:28 PM
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73ta 73ta is offline
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Join Date: Sep 2001
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My tach was off quite a bit, 500 rpm at higher rpm's. Got a new upgraded tach board that has a calibration potentiometer on it. Much better now. Tach board guy said factory is + or - 10% on accuracy. With the new board you can adjust it to get it much closer.

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