650 factory pipe in 550/750 conversion fitment?
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  1. #1
    PWCToday Regular jlunde's Avatar
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    650 factory pipe in 550/750 conversion fitment?

    Just curious if anyone has tried?
    I notice it really depends on what setup you are using. I'm hoping someone has tried?
    I have a spare FP mani and head pipe off my sxi...just don't have a 650 FP chamber.

  2. #2
    PWCToday Guru 123hi's Avatar
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    Re: 650 factory pipe in 550/750 conversion fitment?


  3. #3
    PWCToday.com Is My Home Away From Home fastgtfairlane's Avatar
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    Re: 650 factory pipe in 550/750 conversion fitment?

    i dont think the sxi manifold will work in the 550 hull because of how the manifold clocks the headpipe mounting. the sxi manifold clocks the headpipe farther clockwise so the large sx/sxi chamber will clear the hull. if you had a 650 3 bolt manifold and your existing headpipe, a 650 chamber should work. depending on which 650 chamber you have might require massaging the chamber and possibly gas tank, but its definitely been done.

    im sure you can find a 650 chamber on this site or facebook for sale and try it out. worse case you have to get an exhaust manifold too. i found a stock 650 silver diverter manifold for i believe $50-60 shipped.
    91 440; PJS Viper 7000, jetsport exhaust mani, factory full pipe, coffman waterbox,solas 17*, jetco worked 440 pump, ocean pro nozzles. shredmaster ocean rideplate and grate combo, wide tray, footholds, deep strake mod, driveshaft fill,650sx quick turn

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  4. #4
    PWCToday.com Is My Home Away From Home Bruce in SB's Avatar
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    Re: 650 factory pipe in 550/750 conversion fitment?

    Depends what you mean by "Fit""
    I don't want anything hitting by at least 1/8" so I needed a blister on the hull... Others have shoe-horned them in but they must be hitting the bondline pretty good.
    Just my experience ...
    "Thanks" to Chris Newmiller @ Newmiller Machine

  5. #5
    PWCToday.com Is My Home Away From Home BLRider's Avatar
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    Re: 650 factory pipe in 550/750 conversion fitment?

    Quote Originally Posted by Bruce in SB View Post
    Depends what you mean by "Fit""
    I don't want anything hitting by at least 1/8" so I needed a blister on the hull... Others have shoe-horned them in but they must be hitting the bondline pretty good.
    Just my experience ...
    Mine is "in" my hull but touches the hull and tank,
    Never argue with an idiot, they will drag you down to their level then beat you with experience.

  6. #6
    PWCToday Guru 123hi's Avatar
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    Re: 650 factory pipe in 550/750 conversion fitment?

    I should clarify...mine “fits” as BLRider described. Although, it does fit better than the Westcoast 650 pipe I was previously running - mainly due to the lack of a rubber coupler on the chamber.

  7. #7
    I dream skis sportsfreak29's Avatar
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    Re: 650 factory pipe in 550/750 conversion fitment?

    I have a 650 Factory Pipe in my js conversion hull with a 650 motor, it's a tight fit but it's in there. You'll need to make a small dent in the chamber to fit around one of the flywheel cover bolts but other than that you should be good.

    Note: make sure you stuff the chamber into the front of the hull prior to installing the motor. It won't go in if you mount the motor first. Lol, I found that out the hard way.
    If you're not crashing, then you're not trying!!!

    Ski situation in limbo!

    Special thanks to Chris Newmiller, and Mitchell at M&M Marine!

  8. #8
    Resident Guru 2strokesmoke's Avatar
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    Re: 650 factory pipe in 550/750 conversion fitment?

    Are you guys using the Rhaas adapter plate utilizing the 1" set back option? Thought that might give you an extra 1/4" or so in hull width.

  9. #9
    I dream skis sportsfreak29's Avatar
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    Re: 650 factory pipe in 550/750 conversion fitment?

    My ski had the 650 motor mounts glasses into the hull, and doesn't use an adapter plate, so I have no idea.
    If you're not crashing, then you're not trying!!!

    Ski situation in limbo!

    Special thanks to Chris Newmiller, and Mitchell at M&M Marine!

  10. #10
    PWCToday.com Is My Home Away From Home BLRider's Avatar
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    Re: 650 factory pipe in 550/750 conversion fitment?

    Quote Originally Posted by 2strokesmoke View Post
    Are you guys using the Rhaas adapter plate utilizing the 1" set back option? Thought that might give you an extra 1/4" or so in hull width.
    I am using the rhaas plate but the 140 pump kit with the x2 driveshaft still needs to use the front mounts.
    Never argue with an idiot, they will drag you down to their level then beat you with experience.

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