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Recent content by 27floater

  1. 2

    OMC Zephyr 15HP 2 stroke cooling question

    I have a 1981 15HP OMC Zephyr saildrive in my boat. The power unit is basically a 25-35HP OMC outboard top end de-tuned to 15HP for longevity and attached to a different bottom end, which protrudes through the the hull sandwiching the fibreglass with what is essentially a giant O-ring (ISO ring)...
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