Just before going to Daytona last week i noticed a slight clunk coming from the drive shaft area of the bike while pushing it in the garage. No other oddities , vibrations or noise, just a clunk sound moving forward or backward.
By the time I got to Daytona the sound was a bit louder and there may have been some additional vibration, but that's hard to tell.
Rode it all week , had a couple guru's listen to it , and they are pretty sure it sounds like a bad U joint ??
I had no alternative but to ride it home, kept checking it at every stop. The final drive housing, shaft and boot did not feel hot to the touch. No fluid leaks, and i had recently changed all the fluids . They are all up to spec level still and do not smell funny or appear to be burnt.
I have never torn in to the rear drive assembly on the bike so please bear with me as i will have lots of questions as i go. The parts fische does not show the U joint as being a service part and the drive shaft assembly is predictably BMW. "expensive".
Who has a source for rebuilt units ???
Any suggestions on what to look for or check as i take it apart ??