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how far below the bottom of the boat should the prop be

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  • how far below the bottom of the boat should the prop be

    I have a 4hp Johnson the center of the prop is about 12" below transom bottom. I would like o raise it how I determine the proper depth

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    Re: how far below the bottom of the boat should the prop be

    The big flat plate (cavitation plate) above the prop should be equal to or slightly higher that the bottom of the boat.

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