It will just get worse until it fails totally. On my 92 right at 16000
miles the cold solder joints on the bimetallic spring broke. It acted
erratic while it was making contact due to vibration but eventually it
broke completely and just ceased working.

Allen Thomas
On Jun 8, 2015 6:00 PM, "Paul" <[email protected]> wrote:

> Here's a short video <http://youtu.be/YA2R-GyeNnw> of how it's behaving.
> It moves, but somewhat erratically and not accurately at all. You can see
> when I rev the engine the needle doesn't go nearly as high as it should.
>
>
> *Paul LeBoutillier *
> *www.hondanighthawks.net <http://www.hondanighthawks.net/>*
> Honda Nighthawk Lovers Email group
> <https://groups.google.com/forum/#!forum/nighthawk_lovers>
>
> On Mon, Jun 8, 2015 at 2:02 PM, Kurt Nolte <[email protected]>
> wrote:
>
>> If you mean "lagging, sometimes not working after startup, and
>> occasionally falling dead with the engine running" it's probably one of the
>> capacitors in the housing on its way out.
>>
>> Otherwise I'd start with its feed and make sure the connections are
>> clean. Isn't it fed off the spark box?
>>
>> Kurt
>> On Jun 8, 2015 3:31 PM, "Paul" <[email protected]> wrote:
>>
>>> Hey gang, the tach on my son's 93 Nighthawk 750 started acting very
>>> erratic. Is there a troubleshooting technique that helps to identify where
>>> the problem might be originating?
>>>
>>>
>>> *Paul LeBoutillier *
>>> *www.hondanighthawks.net <http://www.hondanighthawks.net/>*
>>> Honda Nighthawk Lovers Email group
>>> <https://groups.google.com/forum/#!forum/nighthawk_lovers>
>>>
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