The second link in your post is to US member Catatonic Bugs personal website and he has a lot of other useful info for us xs11 owners.
http://www.ringler.us/family/mybike.html I found the shaft drive manual pretty useful, and I have a collection of 13 factory tech bulletins issued in the 80's describing a number of small issues and fixes. I also have a few printable templates for drilled brake rotors if anybody's interested in them.
