I did find that it needs to be looser than you think. If you sit on the bike and compress the rear suspension after you have done it and then try for some slack to make sure it doesn't tighten up too much. The other thing if it's done a few miles is make sure there are no tight spots by moving the wheel and testing along the length of the chain for slack. I had one on an ST4s that had such bad tight spots that I binned it and replaced it (and sprockets at same time of course). In one place it was like a steel bar and in another it was slapping the swing arm. Almost makes you hanker for shaft drive ... almost. Well .. maybe not! Anyone for belts?
