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  1. Replies
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    It's good to see another master of mayhem (I'm...

    It's good to see another master of mayhem (I'm 69) willing to climb in and go! My 11 ft cab over hydro melted the motor too. Couldn't get enough air to it getting on plane. (it was air cooled) I...
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    I think I have a picture of that jet ski. He...

    I think I have a picture of that jet ski. He used 2 rudders and a surfacing prop. The engine, I believe was a jet ski engine.
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    No trim pump, no rams, no extra weight, no...

    No trim pump, no rams, no extra weight, no thinking.
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    This just might work,,,,,I hope

    Remember the guy 4 or 5 years ago that put a Honda motorcycle engine in a 3 point hydro and designed a surface drive for it? It's me. Now I've got another brain child to ponder. I have a 9 foot...
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    My son's boat has a 28hp outboard and an 11/17 is...

    My son's boat has a 28hp outboard and an 11/17 is called for. I know the pitch is for a reduction geared outboard and the inboard will be straight drive so I think an 11 inch with less pitch run in...
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    What would those props fit? I have a 7.25 lefty...

    What would those props fit? I have a 7.25 lefty for my hydro, but I'm looking for an 11 incher now for a new project.
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    left hand prop?

    My next project will be powered by a 32 HP jet ski engine. At this point it looks like the prop will be 11 inche LH, with the pitch to be determined later. Would I need a custom prop, or is this...
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    To me, bronze costs too much. Exhaust pipe is...

    To me, bronze costs too much. Exhaust pipe is plentful and cheap. If all works out with my prototype, I will make the next tube from aluminum. O rings won;t last too long at all, and may cause the...
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    I built my own shaft and tube. For my prototype...

    I built my own shaft and tube. For my prototype I used (get this) 1 1/2 exhaust pipe that I expanded to 2 in id to fit the bearings. 1 tapered bearing on the prop end for thrust, and a sealed ball...
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    8,561

    The engine is in sideways with a chain coupler...

    The engine is in sideways with a chain coupler driving a jack shaft to another short chain driving the prop shaft. This way the engine can be mounted in the middle of the boat. The shaft runs at 7...
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    I'm using a 400 Honda automatic engine in an...

    I'm using a 400 Honda automatic engine in an inboard surface drive of my design. The boat is a 3 point hydro that is 11 feet long. Not done building it yet (almost tho) I got the engine running...
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    outboard gear ratio

    I've seen speedmaster cases with a 16/21 gear set. Does this mean that the engine spins 16 times to the props 21 times or the other way? What RPM do the engines run at that have these cases.
    I'm...
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