You know, sometimes it's best to NOT know what's going on! In my swing arm work (other thread), I discovered when I tried to re fit it, that the swing arm right side interferes with the inner chaincase. There is actually a round "end of swingarm" print worn into the case so obviously it's been doing that for a long time. ALSO, the rear chain has worn a fairly substantial grove into the chaincase as well. So I have two questions (I have referred to the parts and service manual and don't see any answers for this) 1. Is there any standard "factory" way to adjust the distance between the chaincase and the cradle/engine - shims or whatever? 2. Are there shims under the rear drive sprocket that allow it to be moved toward/away from the chain case? Of course, if there are no shims normally there, then there is no way to move the sprocket further away from the chain case on it's own. Of course the fact that the chain badly groved the chaincase AND the fact the swingarm did the same indicates to me that the chaincase is just flat-a$$ too close to the cradle. So what's the solution?