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four corner seizure

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    Stihl 440 Four corner Seizure

    Hi guys! I have a question for the experts. I have a 440 that has had a few cylinder kits put on and the end result is the same, seizure. The two kits I've put on were both "Hyway Kit" the fist one was big bore and we replaced a seal when that rebuild was done. Ran 20 minutes and then seized...