Join Date: Jan 2005
Location: Greenville, NC, USA
This is really an easy fix and can be done roadside if you can get the broken off threaded part out. Better to manually shift it to third and ride home or a place you can work. Basically you just have to take the side cover off, just a few screws and it is off. The linkage can be disassembled and reassembled without too much contortion. Make sure you use locktite on the threads when you assemble the new parts and lubricate the ball joints. There is an after market kit for sale. Check the HOW, for $52.00 you get the long arm linkage with two permanently lubricated ball joints, a drill bit and screw extractor. I now carry spare parts just in case mine breaks again.
Good luck, sorry I don't have detailed instructions, but it is really pretty easy.
Adversity builds character.
BMW MOA #: 115771
My rides: '01 K1200LT Black (of course)
'00 BMW 540i (also black)
'76 Toyota Landcruiser FJ40 (not black)
'06 Toyota Landcruiser (black again)