Answer me this about TACHS!

[teamflorida AJ]

why do honda tachs always bounce. I have crx 90 and the tach is bouncing . even the autometer one i hooked up is bouncing. I hook it up to the blue at the distributor. Whats up?? Can someone tell me before i go NUTS!!! Thanks guys for any help.

 

[D15Beater]

Boucing or jumping??? I notice under hard throttle mine will jump from 4000 to 5000 really quick....almost as if its boucing. Id like to know the reason for this as well