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screen o-ring

  1. short oil screen shredding o-rings - problem?

    Off-Road / Enduro
    each time I remove the shorter of the two oil screens on my 2009 exc400 the inner most o-ring (one deepest in the engine) is always wrecked. Just wondering if anyone else has same experience and any theories on what's happening? Assume it's the high oil temperature in these machines that's...
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