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  1. #1
    PWCToday Newbie
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    Tips for converting 650 electronics to 750 electronics

    Hi all, i got my 750 electronics, 95 750 ss (thanks skags), now am mapping out how to convert my 88 x2 to use it. There are a few extra cables and some of the connectors are different then what i know. I searched for diagrams but came up empty. I'm guessing you connect everything like normal and go from there? Just wondering if I need to do anything special i guess. Any advice would be awesome.

  2. #2
    PWCToday Regular
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    Re: Tips for converting 650 electronics to 750 electronics

    Odd. Most people convert 750 x2 to run 650 electronics due to lighter flywheel. Heard of it being done but not sure if it's worth it just for the different timing curve. Typically just hear running advance 650 electronics and lightened 650 flywheel. That's what I have in my 750 x2 and happy with that.

  3. #3
    PWCToday.com Is My Home Away From Home BLRider's Avatar
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    Re: Tips for converting 650 electronics to 750 electronics

    I've done this swap multiple times and wI'll never go back. You already have the SS parts and the 750 flywheel and front cover will bolt right on. The electrical box will be a little more of a challenge. The start/stop switch could have different color wires but with a quick look at the two wiring diagrams will solve this minor issue.

    Worthy upgrade for anyone willing to do a little work, the 650's respond well to the 750 timing curve.
    Never argue with an idiot, they will drag you down to their level then beat you with experience.

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  4. #4
    PWCToday Newbie
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    Re: Tips for converting 650 electronics to 750 electronics

    Thanks BL, that is what I've researched as well. Can you advance timing a few degrees as well with this swap or is it unneeded?

  5. #5
    PWCToday.com Is My Home Away From Home BLRider's Avatar
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    Re: Tips for converting 650 electronics to 750 electronics

    There is a $50 - $60 R&D timing 7 advance that is (was) produced. Not really needed.
    Never argue with an idiot, they will drag you down to their level then beat you with experience.

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  6. #6
    Top Dog Benflynn's Avatar
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    Re: Tips for converting 650 electronics to 750 electronics

    No, the stator won't advance w/o adapter

  7. #7
    I dream skis sportsfreak29's Avatar
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    Re: Tips for converting 650 electronics to 750 electronics

    Is it possible to run the 750 electronics with the 650 flywheel and stator?
    If you're not crashing, then you're not trying!!!

    '84 js550/650 Hull, Tubbies, Footholds, 650sx Motor & Pump, 1.75 over 663cc's, OP Comp Head 190psi, 44SBN, Vortex FA, WC Intake, Boyesen Reeds w/ Stuffers, Factory B Pipe, Factory Waterbox, 650 Side Exhaust, Dual Cooling, Billet Couplers, Jet Works FCV, OP 650sx Ride Plate, PJS Top Loader, Skat 9-17, -2" AM Pole, MSD total loss. 54mph.

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

  8. #8
    PWCToday.com Is My Home Away From Home BLRider's Avatar
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    Re: Tips for converting 650 electronics to 750 electronics

    No, they aren't compatible.
    Never argue with an idiot, they will drag you down to their level then beat you with experience.

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