While I was out west earlier this summer, I was cleaning the bike at the hotel in South Dakota and noticed that the shifter was really loose. I check my shifter arms from time to time and once have found them loose and tightened them up. This was different. The shifter arm at the BACK of the linkage where it connects to the shifter pawl shaft was very loose. I took the linkage loose, took a 1/4" hex and a 8" cresent wrench, (for leverage), and tightened it down. The next night it was loose again. Not good. I took the linkage loose and really cranked on it this time. I tightened it up as tight as I felt that I could get away with without breaking or stripping something. I babied my shifts for the rest of the trip and made it the last 1000 miles OK. Torque spec is about 30 - 40 lb/ft, and I bet I cranked it up to 80 - 100.
My bike goes in on Saturday to have that arm replaced under warranty. There is not enough room to get that arm off without removing the outer and inner primary! So it will take about 3 hours labor.
I'll have them check the tsb on the stator while they have it apart and it seems like the perfect time to put on that chrome inner primary.
Fortunately the arm is made of softer metal than the shifter pawl shaft, so the shaft should be OK.
I write about this here so you guys, (and gals) have a heads up to make sure to check that rear shifter arm from time to time for looseness, since it appears to be a real PITA to replace if it gets damaged.
The service manager at the local shop says that they find these loose all the time.
My bike has about 29000 miles so far.