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x7 4 stroke 50cc piston
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  1. Air Cooled Pocketbikes
    Hey guys I'm in the process of rebuilding my x7 4 stroke pocket bike and was just wondering how you guys position your piston rings and oil control rings. I have seen many diffrent diagrams but I'm not sure what to use. Cam2 said 10 and 2 for the compression rings, and 8 and 4 for the oil...
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