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    Need information or help about piston rings

    Hi everyone! I have a yamaha jt1 1972 and I'm facing a little problem. In fact, one of my piston ring just broke... That may not seem a big problem, but for a rare bike like that it is. I can't find the right ring to replace the broken one. My piston and cylindre is oversized of .50 mm so I need...
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    Question about jetting and neddles .. HELP MEEE

    Hello! I am new here and I don't really know how it works. I just have a little problem with a mini bike project I am working on. I'm making an homemade mini bike with a 2 stroke lawn mower engine! The engine I got didn't have a carb so I put a mopped carb on it. I started the engine and the...
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