XR650R valve adjust question

2 replies to this topic
  • wuzfast

Posted March 31, 2008 - 01:30 PM


Is it normal for the right side exhaust valve to snap slightly when I turn the motor over with the kickstarter with the plug out when doing a valve adjustment? I assume this is the auto-decompress feature activating. Thanks

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  • Blownaway

Posted April 01, 2008 - 01:45 AM


Auto decomp does weird things. Sounds normal. I ground off the rocker that rides on the decomp part of the cam to disable mine. It was easier than messing with the cam itself.

  • tjmiller

Posted April 01, 2008 - 09:18 AM


My XR650R seems to do exactly what you describe and only makes the noise when the auto decompression clicks in. Seems strange for it to make the noise - I thought I had done something wrong with adjusting the valves, but I rechecked and had another person recheck with me. Must be ok for it to make this noise, because I've ridden probably 500 miles since my last valve adjustment and everything seems to be ok.

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