I've got a 08 klr 650 with 9000 miles and it rattle's. Thought it was the doohickey. Replaced it with eagle Mike's using the torsion spring, it helped some but the noise is still there. Checked the valves they were perfect, called Eagle Mike told me to Check the front weighted sprocket inside the left cover it looked like new but had just a hair bit of wobble up and down the shaft looks like it has just a tad bit of wear. The sprocket teeth show a little wear but the cam chain sliders and the rollers look good. We put it all back together and made sure it was in time and added mobile 1 20/ 50 oil which seemed to quiten it down some. Do you guys have any idea what else I could check for? The rattle is the worse on the lower left side. It doesn't use oil, smoke, run hot or anything else never seen any metal in the filter.. Is there something I could add to the oil to quiten it down some more? Or is this just a klr thing???