2009 what?

When asking if a part will/won't work it "usually" helps to know the year and model of the bike and the specific part in question. The speedometer you seem to refer to behaves differently on different models.

 

Its a 2009 road king.

 

OK, Same one I had on my Dyna - with those you can just buy it - inside the box is a small cable that will connect the new speedo to your ecm data port and it will transfer your mileage to the new speedometer. I forget the figure but once you ride the bike for approximately 31 miles (new speedo will display a figure in place of miles remaining and count down) it will lock to your bike and the mileage will be permanent. This is to confirm proper operation after installation.

 

Here's a

 

Thanks for all info!

 

so the op question was about a used speedo. you mention above 'locking' to your bike, if that is the case, can you switch it from one bike to another?

 

My bike is an 08 Crossbones, and the mileage is stored in the Speedo. I've gone through 3 of them. Still have the original, but sent another back for exchange under warranty. The new one started at zero, but I actually have around 9000 miles more on the bike rather than what is shown on the speedo.

I think the wiring changes for the ECM were around 2010 model year, but I'm not sure.

You need to check with a Harley technician on this. The newer speedos would probably need some sort of adjustment for my particular model year.

 

Guess I missed that last sentence about finding a used one. When I say locked, I mean the mileage locks in and can no longer be changed, you can switch to another bike but the mileage will pick up where it left off on the previous bike.

Not sure exactly when the change occured but newer bikes have it in both which is how these plug and play ones work. You plug the new speedo into the ecm and it aquires the mileage stored there - the old speedo can be put on another bike and it will work - it just starts from whatever the figure is when it was removed.

 

okay, so now, this brings up this question. if the mileage is stored in both the ecm and the speedo, if you change out speedos, then the mileage will not agree, correct? i'm guessing the dealer has the ability to pull the mileage out of the ecm?

 

With the combo speedometer/tach if you install a new one (never used) and run it more than the 31 miles, it locks the mileage to the current figure stored in the ecm, if you were to remove that and reinstall the stock one at a later date then yes - the figure will be off. Basically you can install a used speedometer that is compatible with your bike but it will retain the mileage from the original bike it came from and accumulate from there.