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Tach stopped working. Any opinions?

M

Mike

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My tach stopped working today and is stuck a 2,000 RPM on my 1275 motor. Fuses look good and my connections look good. Any suggestions?
Thanks,
Mike
 
Re: Tach stopped working.

Mike

Mine has done that a few times too. Sometimes if you tap lightly on the gauge it will begin to work again.
Do you still have a mechanical tach? or is it converted?
If mechanical, I would guess it is a cable bind of some sort.
Try checking both connections and lube the cable.

Bryan
 
Re: Tach stopped working.

It's a EQUUS electronic tach. One red wire to the fuse box (fuse is good), one black wire to ground and one green wire that appears to be wired to the coil. Is it likely the tech is just gone bad?

Mike
 
Re: Tach stopped working.

I'm not familiar with that tach, but if it's stuck at anything other than zero, it's not an electrical connection problem.

An electronic tach is essentially just an analog voltmeter with some electronics to change the engine speed into a voltage. Such meters are actually fairly delicate, and it doesn't take much to jam them. You might be able to fix it, but probably you're looking at a new tach.

'Course, it might be something simple like the pointer rubbing on the dial plate. You might try taking it apart and seeing if it's anything like that. Nothing to lose.
 
Mike:

I had my fuel guage, speedo, and tach rebuilt about 2 years ago. Not that much $. Nisonger is the name of the place and it's located in New York. The guages have worked perfectly since the rebuild (knock on wood). Just google that name in New York and you should be able to get mailing/phoning info.
Perhaps, you can just give them a call and they might have a simple idea for fix.

Good luck & ride on,

dave in University City, MO
61 BugEye
04 Mini Cooper S
o4 Vespa ET4
68 BSA Victor 441
 
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