I have a '97 Dominator that shares the same motor as the XR650L so this seemed like a good place to post this question. I have 13,000km on the bike and it has developed a noise that sounds like the camchain at around 3,500-4000rpm. Occasionally the noise turns up briefly at other revs. Idle is fine, and temperature seems to have no bearing on it. As these supposedly have an automatic tensioner, my question is has anyone else experienced this problem? It is a pain in the a** as in top gear at 80km/h it sits right on these revs, so I usually downshift to stop the noise. Any feedback would be great.