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XR250 Head / CAM looks burned need help!

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I have a friend who has an older XR250 that pulled the motor apart and after inspection said that the head looks burned in the center of the camshaft area. Evidently there are 2 bearings on either side of the cam and what looks like the cam was rubbing metal to metal in the center area. Does this make sense? Is the cam supposed to be rubbing against the aluminum head in the center?

Roger

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I think it is an 1986. Is the wear normal or should he be purchasing a new head?

thanks for your help!

Roger

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