Just registered to this list to see if I can get some information. I purchased a used 2001 K12LT in 2013 with 84K miles. Over this past winter had the dealer check it out for level 1 service at 94K miles and they found a leaking rear transmission seal. As part of the service I had them replace it and have the drive shaft and splines lubed. After getting it back I noticed that there was a slight knocking noise that I had not noticed before but did not think much of it. Have put 3K on since spring but after a 1K ride in June I started to notice another noise when running in second gear(and only 2nd gear). Best description I can give is it made me think I had a front tire rubbing intermittently on the fender. It has gradually become louder and louder, now sounds like I have a hydrostatic transmission from a tractor on the bike. Most recently it is difficult to shift, now and then makes a clunking noise when letting out the clutch and sometimes stays in between gears. After consulting with dealer they say it may be the transmission but I am thinking it may be other things like the slave cylinder. Anyone have some experience with this? I did check the linkage and bolts that hold it in place and everything was good.