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  1. #1
    PWCToday Guru RIVA CREW's Avatar
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    Apr 2002
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    Pompano Beach, FL, USA
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    331

    Now available for Ultra 250X/LX & STX15F/12-F: RIVA Valve Cover Block-off Kit

    PRODUCT:
    Valve Cover Block-off Kit

    APPLICATION(S):
    Kawasaki Ultra 250X, Ultra LX, STX-15F, STX-12F

    PART#:
    RK19090-VCB

    PRODUCT DESCRIPTION:
    Our Valve Cover Block-off Kit is designed to seal off the ports on the valve cover when removing the emission control system for racing applications. There are two major benefits to removing the factory emissions system:

    1) For racing applications it is recommended to remove all necessary equipment from your craft for increased reliability and reduced maintenance. This also cleans up plumbing in the engine compartment providing a clean look.
    2) To accurately monitor air/fuel ration for tuning purposes you must remove the emissions system. The OEM system pumps fresh air into the exhaust stream throwing off air/fuel ratio.

    Plates are precision machined from billet aluminum and anodized to prevent corrosion. Includes two block-off plates and installation instructions.

    IMAGE:


    SUGGESTED RETAIL:
    $ 39.95

    TO ORDER:
    * PARTS ORDERS: 800/241-4544
    * INTERNATIONAL ORDERS: 954/785-2684
    * FAX: 954/785-2535
    * E-MAIL: orders@rivamotorsports.com
    * ONLINE: Click here
    RIVA CREW
    Please ride responsibly!

  2. #2
    PWCToday Guru aznxtacy's Avatar
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    Jun 2005
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    San Jose, CA
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    339

    Re: Now available for Ultra 250X/LX & STX15F/12-F: RIVA Valve Cover Block-off Kit

    Sorry, but I still don't understand what exactly does this cover do? What if I'm bone stock now, will it do anything?
    2004 Kawasaki STX-12F
    AWA Member

  3. #3
    PWCToday Regular Kenneth Canes's Avatar
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    Mar 2007
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    atlanta
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    53

    Re: Now available for Ultra 250X/LX & STX15F/12-F: RIVA Valve Cover Block-off Kit

    Quote Originally Posted by aznxtacy
    Sorry, but I still don't understand what exactly does this cover do? What if I'm bone stock now, will it do anything?
    I'am with you....whats the advantages of this......

  4. #4
    PWCToday Guru RIVA CREW's Avatar
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    Apr 2002
    Location
    Pompano Beach, FL, USA
    Posts
    331

    Re: Now available for Ultra 250X/LX & STX15F/12-F: RIVA Valve Cover Block-off Kit

    They help the engine maintain a consistent and more accurate A/F ratio. This is important for competition and precise tuning. Plus they clean up the look of the engine. Installing them won't hurt the engine or it's performance.
    Last edited by RIVA CREW; 06-07-2007 at 12:11 PM.
    RIVA CREW
    Please ride responsibly!

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