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XR100 Top End rebuild -need parts-

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Bought a 2000 XR100R and need to rebuikd top end with a few parts. Any suggestions on what to do? Or where the cheapest parts are? I need  a new sprocket for the motor, cam gear, head stud front rim and a crank case cover for the left side

100r.jpg

xr100 motor.jpg

xr100 <a href='https://thumpertalk.com/link/click/4812/' rel='nofollow' data-ipsHover-target='https://thumpertalk.com/index.php?app=autolink&module=links&controller=content&id=4812' data-ipsHover target='_blank' rel='noopener' data-autoLink>top end.</a>jpg

xr100.jpg

top end 1.jpg

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On all but the rim and the cover, I would recommend new OEM parts. Discount Honda Parts or Rocky Mountain ATV. Have you closely checked the camshaft journals in the head? They are often worn badly.

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If you were going to keep the bike, and enjoy it into your 60's the way I do, you should think about a cylinder hone.  Rings are cheap, and if the piston is good, you might be able to re-ring it.  As fir the head, I haven't run into any issues yet. But I'm running a BBR120 kit.  And it just keeps on going ....

 

new knobbies.JPG

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