Wira Speedometer help...

[trex92]

It all started with my odometer getting stucked and not moving. I took apart the meter console and managed to get the odometer fixed DIY. Now my prob is that the speedometer needle no longer moves smoothly. I believe I did not re-install it back properly. I am stumped because the speedometer needle assembly has got a very small ball bearing (just one) and I am not sure where to put this. My needle would move up with increase in speed but once I am slowing down, the needle does not move smoothly down and also when there are bumps in the road, the needle would also jump. Can anyone help with this? Any shops that provide repair services for this? THanks.