I have a 1995 FXDS-Conv. Tonight as I was cruising down the highway, my speedo needle all of a sudden jumped to 80mph, stuck there and would not move. I stopped and shut the bike off and when I restarted and started moving, the speedo worked for about 2 miles and once again, jumped to 80mph and stayed there even as I ran the speed up and down. Stopped and turned the bike off and took off again. Same thing only this time, the analog numbers went away. Once again, I turned the power off and restarted. Nothing!!!!!!!!!!! Any ideas where to start trouble shooting? I did remove the back of the speedo and all wires are tight. I traced the wiring under the tank to the plug under the seat and then down to the back of the tranny. I can find no obvious wiring issues. Thanks for any thoughts on where I might turn to fix my ol bike.