1989 seadoo 587 full build!! Pipe, Cylinders, prop, etc.. - Page 5
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  1. #41
    I dream skis jetbum's Avatar
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    Re: 1989 seadoo 587 full build!! Pipe, Cylinders, prop, etc..

    Awesome. Good work. What did you do for handling mods
    1989 sea doo resto mod in the works

  2. #42
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    Re: 1989 seadoo 587 full build!! Pipe, Cylinders, prop, etc..

    None so far.

    Question though, is water supposed to go through the whole exhaust including the muffler? My decker pipe has 2 hose barbs, one that comes off the manifold and one smaller one that goes directly into the exhaust. I was having an issue with the pipe and muffler getting extremely hot which i know its not supposed to do.

    Probably answering my own question but i want to make certain before i do anything

  3. #43
    PWCToday.com Is My Home Away From Home WFO Speedracer's Avatar
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    Re: 1989 seadoo 587 full build!! Pipe, Cylinders, prop, etc..

    yes water runs through the whole exhaust system, the way most watercraft exhaust work is the water goes through the exhaust pipe which preheats it some before it hits the cylinders, then it come out at the top of the head and at the top of the exhaust manifold, some of it runs down the pipe to cool off the waterbox and the rubber parts of the exhaust system.
    Y'all know me, still the same O.G. but I been low-key
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  4. #44
    PWCToday.com Is My Home Away From Home
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    Re: 1989 seadoo 587 full build!! Pipe, Cylinders, prop, etc..

    Not only the amount but also the rpm you add water will greatly affect performance.

  5. #45
    I dream skis jetbum's Avatar
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    Re: 1989 seadoo 587 full build!! Pipe, Cylinders, prop, etc..

    I remember adding restrictors in my exhaust cooking lines back in the day
    1989 sea doo resto mod in the works

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