440 to 750 build
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  1. #1
    PWCToday Newbie
    Join Date
    Jul 2020
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    AZ
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    50
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    440 to 750 build

    this 750 is got a 650 cranking it they call it a stroker it runs like a striped ape!!been bored out .05 over..stinger pipe with no water box....20201012_124958_HDR.jpg20201012_124958_HDR.jpg
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    Last edited by Raen; 10-12-2020 at 06:31 PM.

  2. #2
    PWCToday Newbie
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    Jul 2017
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    BC Canada
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    27
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    33

    Re: 440 to 750 build

    Not sure I understand what you are saying. I see it has a 750 bottom end. Are you saying your are using a 650 cylinder and 750 crank rods (4mm longer than 650 rods) to make it a stroker motor?

  3. #3
    PWCToday Newbie
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    Jul 2020
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    Re: 440 to 750 build

    Its a 650 lower end with a 750 deck ..i had a hell of a time fiding pistons for it ..has 18mm pins

  4. #4
    PWCToday Newbie
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    Re: 440 to 750 build

    I dunno looks like a full 750 motor... says js750 on the intake side and the head says 0.743l

    I got a frankenmotor I haven't tried out yet. Has 750 bottom end, 650 flywheel/electronics, and a 650 cylinders say it says 0.6xx l on the side... leaves me wondering what crank is in there??? 650sx or 750sx crank with shorter rods (70mm vs 74mm). Guess I'll have to strip it down to find out.

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