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  1. #1

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    2015 Yamaha FX SVHO Riva Racing Stage 1 kit and Sponsons upgrade

    I have a pretty awesome Father-in-law that is pumped on us racing. Just got the Riva Stage 1 kit and Sponsons. Looking forward to installing after the Mark Hahn since I plan to race MFG Stock. Any do these upgrades on a 14 or similar? Says 5mph gains. Hoping for that.


  2. #2
    Won't have a 5mph gain unless there is a prop change. Stock the fx SVHO runs 69-70. You'll gain 1-2mph before hitting limiter. Youll hit limiter with just installing an intake and TJ exhuast.

  3. #3

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    There is a prop in the stage 1 kit. Its advertising 5mph, hoping that is true. Rumor has it that there isn't a limiter on the 2015.

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  5. #4
    RIVERA RACING RIVERA RACING's Avatar
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    Yes you have a limiter...............
    Quote Originally Posted by curtismarker View Post
    There is a prop in the stage 1 kit. Its advertising 5mph, hoping that is true. Rumor has it that there isn't a limiter on the 2015.

  6. #5
    Just add the scom to the kit to solve the limiter problem ?
    http://www.4-tecperformance.com/inde...oducts_id=2571

    Will need some work on the impeller as well

  7. #6
    Kaybat's Avatar
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    the FX supposedly do not have a limiter(hence the FZ stage 1 kits have a scom, the fx kits don't)....?
    i think i read that somewhere on here...i'm not positive though.

    http://www.4-tecperformance.com/inde...oducts_id=2584
    Last edited by Kaybat; 01-09-2015 at 10:32 PM.

  8. #7

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    No SCOM needed on 14-15 fx svho. That's why it isn't sold in the stage 1 kit. You guys repitching the impeller? This is an offshore race ski. Looking for hookup mainly. Any advice appreciated.

  9. #8
    fx160's Avatar
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    It's the rev limiter that you will hit
    Not a speed limiter
    And a scom won't change the rev limit

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  11. #9

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    How do you get rid of this limiter then? Reflash? How is RIVA saying 5mph gain with stage 1 kit if it hits the limiter?

  12. #10
    LugNutLS1's Avatar
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    IF you get a new prop with this kit that is how your staying off rev limiter. A reflash will be your best mod. Allows the other mods to function as designed

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