I bought a k100RS 1985 some 3 months ago. It is my first 4 cylinder, my first K, after six 2 cylinders. I can be short about the qualities of the machine: it is the best I ever had, it is such a pleasure to ride it . However, I had to fix some things when I bought it and this forum really helped me. So I thought I'll tell you about the things I ran into while working on the machine.