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oil bypass valve

  1. oil bypass valve

    1987 to 2007 Wrenching & Mods
    Found my oil bypass valve stuck(seized) shut today when changing my oil for the first time since buying my klr. At first I thought the manual was mistaken, but sure enough,after pushing REALLY hard with the back of a bic pen...sphroinggggg!!!.. Just wondering what a stuck by pass valve...