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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
kdx 420
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[QUOTE="vaultf600, post: 679055, member: 47858"] well i tore down the top end when i couldn't get it running and the piston is really all scored up and has a very small pin hole in the skirt because of wear. just by looks it seems to need a topend. but i did do a compression on it a while ago and it is like 90 or 100 i belive. not really sure what they are suposed to be though. i know my cr 125 runs 150psi. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
kdx 420
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