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cylinder head

  1. Cylinder head issues

    Foreman 450
    Hello all, new to the page and ATVs in general. Just picked up a 2003 Trx450es for cheap. It did not run but was in otherwise great shape. I pulled the head after it wouldn't turn over with the recoil starter. As I suspected, the piston was being blocked by what seems to be a broken valve seat...
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