Tach needle bouncing around

[rotax21]

I have a 1993 Katana 1100 and my tach needle bounces between 4k-7k while I am running on the freeway. Sometimes it will be closer to 4k and I hit a bump and it jumps up to 7k or so and than it will bounce back down.
Any ideas of what I should look for.

thanks,
Lee

[kjcmetal]

try running through all the electrical connections. mine does it cause of the hack job re-wiring the tach i did.

[danp2630]

mine did the same thing, it was a loose connector.

[rotax21]

Was the connector at the back of the gauge or near the engine?
I will check it out this weekend.

Thanks

[danp2630]

Was the connector at the back of the gauge or near the engine?
I will check it out this weekend.

Thanks

mine was behind the headlight