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Layne skinner  
#1 Posted : Friday, March 12, 2021 2:03:21 PM(UTC)
Layne skinner

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I have a quick car tach that doesn't work at idle unless I tap on it. When I tap on it it works for a few seconds and then goes to 0rpms. When I rev the motor it works and reads correctly but doesn't work at idle. What could be the problem? Thanks
Mike Dicely  
#2 Posted : Monday, March 15, 2021 11:25:33 AM(UTC)
Mike Dicely

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If it is a Yamaha, make sure you have the pull up resistor on it. Also make sure you have it connected to the ECU tach signal and not the Coil signal wire.
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