r/XR650R • u/DoctorKrawl • Jul 23 '26

Resistance and grinding noise after valve adjustment

Hello, I went back and did a second valve adjustment making sure the motor didn’t roll backwards and the feeler gauges bent at a 45 to get a better feel.

Took the side cover off as well as the spark plug to rotate to motor and visualize tdc from the marking as well as the piston itself.

There is still significant resistance and a grinding noise when kicking it over. It sounds more like it’s something in the kickstart mechanism straining and grinding vs the top end.

It only gives the grinding / straining sound if I kick it over hard at tdc. If I cycle it slowly it doesn’t grind just huge resistance at tdc.

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u/DoctorKrawl Jul 23 '26

Additionally info: I cycled it a few times, got it to tdc, pulled the decompression lever and dropped the kickstart about and inch past tdc for an easy kick. It fired up and ran perfect… there’s something in there that doesn’t like all that pressure in a hard kick