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#21
04-13-2020, 02:01 PM
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That "variable resistor" is called a potentiometer, or pot. you turn the screw to increase or decrease the resistance. It's proportional, so if you know how far off your tach is, Greg can probably tell you how many turns to make and which direction to make them. If it's easy to get at, and you know the pre-replacement RPM at idle, you can adjust until you get that number.
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