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vintage power valve

  1. resurrected dinosaur '91 250mx. how do I set up this powervalve?

    Two Strokes
    I was given an older 1991 250mx 2 stroke basket case with a bad cylinder/powervalve/etc. I got a new powervalve and had millenium redo the cylinder with a wiseco piston, etc and new powervalve flapper. I ordered the special KTM gauge for setting the x dimension and set it up very (too?)...
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