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Dirt Bike Mods & Maintenance
Top End Cylinder and Piston Pics
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[QUOTE="spanky250, post: 144457, member: 20897"] Everything I see in the pics looks fine. The brown marks are from blow-by due to worn rings. The carbon buildup is a little excessive from your description, but can be greatly reduced with careful jetting. If it were me, and my top-end was torn apart for rings, with a year of service on it, I would spend the few dollars for a piston. A complete top-end kit is only around $100, plus a gasket kit. For the cylinder, go over it lightly with a ball hone or a scotch-brite pad to clean it up and de-glaze it, and you should be fine. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Top End Cylinder and Piston Pics
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