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KSever

Tachometer Wiring

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KSever
Since I'm no electrical mechanic I'm going to ask a question on something I've never had to do YET. I have a 12 volt Tachometer for my AC 314 and I believe the hot wire connects to the coil? Am I correct? But what terminal does it connect to? I have looked through my service manual for the 300-400 series and this tractor even has the knockout hole in the dash for the tach but nowhere on the diagram does it show this. Thanks, Kris

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UCD
It should go to the Ign side. The side that goes to the points - side. To be sure take a test light and test each side of coil with key on cranking the engine. On the key + side the light should be steady. On the points - side the light will flash. Attach it to the side that flashes.

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