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wuzfast

XR650R valve adjust question

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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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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.

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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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