speedo float
 

Hey everyone. Trying to figure out a small issue here.
My speedo floats.

I can lock the throttle at any speed, and it will hover back and forth by about 5kms, maybe more while locked in place. once in a blue moon, on the highway, cruising at a 120kms. the speedo will drop to zero then shoot back up to actual speed.

checked wires, checked fuses, only thing I didn't do was take it off the tank.
any suggestions?

2011 fxdf fatbob

Remove the speed sensor on top of the tranny. Clean the metal “hair” off it. If there is no “hair” replace sensor.
Bob