http://65.38.172.84/forums/showthread.php?t=70847
Posts #8 and #9.
Installation is simple. I was supposed to meet a friend at his place to do it for him and when I got there he was just finishing up, using only the instructions that come with the spring. The guy is a total fu*tard as a mechanic. He was in the process of bolting on the headers and I noticed both exhaust circlips on the floor next to the bike. He said they were getting in the way and they didn't look like they did anything anyway. We yanked the cam cover just to be sure and he got it right and he did. Goes to show you anyone can get that part right.
DO NOT use the cam cover torque specs in some service manuals. They are a misprint and could lead to cracking the case. Correct torque is 90 - 120 INCH pounds or 7.5 - 10 FOOT pounds. Clean and blow out all 10 cam cover bolt holes before installing.