Speedometer stopped working on '06 SB 600HO

[Switch06]

I have a 2006 Switchback 600HO. Last year, I swapped tracks, gears, etc and took it out west (which I'd also done during the previous 3 years). During the first ride out west, I immediately noticed the speedometer wasn't working, but everything else (tach, etc) seemed to be working just fine in the console. I wondered if something wasn't put back together right after the track swap, so I swapped tracks back to the 1.25" track when I got back home to Minnesota, but didn't get a chance to ride again until this year. I finally got a chance to ride a couple of nights ago, and the speedometer still isn't working. I've swapped tracks a dozen times, and have never had a problem with the speedometer until now, so I'm pretty sure everything is put back together correctly, but I suppose something could've been damaged. Any ideas of what I should look at, to try to figure out what is wrong?

 

[sw]

Take the PTO side speedo housing cover off drive shaft and look to see that speedometer gear is bolted to center of driveshaft, wipe off excess grease and inspect cogs of gear for signs of wear. Check drive shaft bearing while you're there, make sure it rotates freely, keep this whole area clean, a little dirt/grime is not OK. If this checks out then I would suspect speedo sensor attached to housing and leading to plug-in harness is at fault. It's not uncommon for these magnetic pick-ups to go bad. Good news is all these things are relatively cheap to fix. Also a good dealership would have a special tool to check sensor before all this troubleshooting if you want to go that route. I've found I miss the trip meters more than speedometer when things like this happen, good luck!