Tach reset ?

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gary martell

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2007 Nitro 640xl

The tach is reading @ 1600rpm too high.

When the boat is not running the needle rests at 1600

Can it be reset or is it replacement issue?

Also, how are the wires disconnected from the back of the unit?

There are 5 terminals and the wires are heat shrinked onto them, I don't want to damage anything when I remove it.



Thanks guys



Gary
 
I copied this possible solution from Teleflex Marine web page. This is exactly what I had and this procedure fixed it. Just make sure you go back to the original setting. Look for the arrow head on the selector screw and the corresponding setting printed on the back of the tach. Mine is an older 1999 Teleflex tach.



"As analog tachometers age they sometimes begin to behave unpredictably and do not always display the correct RPM. Sometimes tapping on the glass brings the tachometer back to the correct reading
 
Thanks for that tip. If it works, it's an easy fix.

I'm no longer up at the lake but I'll go up mid-week to try it out.



I'm only 5'5" , 160lbs and don't know how anyone larger can fit under the dash to poke around.:lol:
 

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