Join Date: Jul 2007
Location: Anaheim, CA, USA
My dealer changed three different locks for me, and they never charged for it. I would expect a nominal fee perhaps, but not an exorbitant price. The parts person did it at the parts counter - not the service/repair people.
The link does not have all the details for getting the cylinder out of a 49 liter top case. I searched, and some links are now missing. Basically, you open the top case, leave the key in the lock, remove the little cap on the inside, poke a thin allen wrench inside the hole and find the release pin that lets you pull the cylinder out. Pay attention to the orientation of the lock pin when you remove it (for reinsertion later).
P.S. The dealer did charge me a lot of money for a spare key to my 2007 K1200GT. When I bought it new, it came with a metal key and a cheesy plastic "wallet key" that would not be very good in a real wallet, and looked like it could be used a few times in emergencies before total failure. I paid $50 to have them order a spare metal key. Keep in mind that the key has an electronic chip - the bike must be programmed to accept it. Top and side cases do not connect to the chip.