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Thread: 550 dilemma

  1. #11
    PWCToday Newbie
    Join Date
    Jun 2012
    Bayarea CA

    Re: 550 dilemma

    check your drive shaft bearings if your useing a 440 or 550 pump of a older hull after years they just dont turn free enough and makes a great motor just ehhhhh slow motor in other ski ran great put in this one unless you swapped pumps and driveshafts etc

  2. #12
    PWCToday Guru Zorkman's Avatar
    Join Date
    Aug 2006
    Tomball, TX

    Re: 550 dilemma

    Month old Post so I'm sure you got it sorted out by now. But just in case, did you add a restrictor to the return line or move over the Rev limiter from the 550 hulls? Bn44's need the restrictor and by stock use the Rev seliniod that is inline on the return line as one. 440's have the 38 and do not need that..A bn44 will struggle to run correct and consistent without it.
    91' 550sx (650 conversion)
    89' js550 (650 conversion)
    77' js440 (now 550)
    94' Seadoo XP
    93' X2
    88' X2 (750 conversion w/ Blaster Limited pipe)

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