speedo side bearing removal
you want to key on the driveshaft bearing located on the clutch side of the sled. unfortunately theres about a 99% chance your issue isnt cable related but more likely to be the connector between the speedo housing and the driveshaft.
you need to remove your secondary clutch. of course the drive belt needs to come off first. pay attention to the shims between the bolt and the clutch as well as any that may be behind it. they often stick to the back of the clutch and fall off when your not looking. if thats actually a 95, you will need a 14mm wrench for the nut. have a 17mm on hand just in case.
there are three nuts holding on the speedo cover. you will need a 12mm socket or end wrench to remove these. pull the rubber boot back from on the speedo cable and remove the cable, pliers may help here. its a knurled fitting. then remove the 3 nuts securing the housing mentioned previously.
there is a rigid piece of of cable between the housing and the driveshaft. more than likely it is broken. you will know when the housing is removed. hopefully it comes out easily from the driveshaft, if not, theres are some tips to remove it.
to replace the bearing, you will need to loosen the track. if you account for the number of turns you loosen the track adjuster bolts you can reference that later assuming your alignment is correct now.
the bearing has set screws securing it to the shaft. yours are probably still allen heads, but they may be torx. should be two set screws. you will have to loosen these from under the sled and rotate the track to access them.
at this point, if your luck is holding out, the bearing should slide of the shaft. if not, you have a few options. there is a carrier on the inboard side of the tunnel. a strategically placed cold chisel and punch can be used to drive the bearing off. if this isnt working for you, you can grind and remove the 3 rivets securing the carrier and slide it back for better access for your punch or chisel. last ditch effort would be to drop the skid and chaincase and completely remove the shaft and take it to the press.
see how far you get before making any rash decisions.