this last week-end my 2012 800 pro-r speedometer went haywire. It shows all different speeds all the time, even when not moving. The odometer is still working. Anybody else have this?
I had a 06 700 fusion that did the exact same thing. Ended up being a bad speed sensor. Maybe try unplugging it and see if the speedo stops moving when sled is sitting still. If it does, I would guess bad sensor.