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  1. #1

    Kawasaki STX 15 F

    Hi,

    I have some Questions about the 15F.

    - Same Oil, Oil Filter and Spark Plugs like the Ultra 300X ?
    - Is the also an Exhaust Filter ?
    - Whats are the Problems at this Jetski ?


  2. #2

    Join Date
    May 2008
    Location
    Sweetwater
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    Yes... Yes... No... No.. Not many at all, it all depends on the year however. Older ones had issues with the crankcase breathing valve things on the valve cover, easily removed and blocked off. Also, the pumps should be updated to the new spec. The only other thing I know of is the pesky idle control valve. It loves to go bad and prevent the engine from Idling. Easy fix and a sub $200 dollar part. I am sure I am missing a few things, but even so they have always been the most reliable out of any PWC. The new ones look awesome, and I don't know of any chronic issues.

  3. #3
    The dash meter on pre 2011.
    Water may get inside especially if the ski gets upside down or submerged in water.
    If buying used, make sure it works 100%

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  5. #4

    Join Date
    Jan 2006
    Location
    Patterson La
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    Fuel pumps fail also. You can change it out with a generic pump if you cross reference it to an airtex or a walboro.

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  7. #5
    ok, i want to buy a new 2015 Modell. Fuel Pump Fails ? That is like an Seadoo "DI" Engine

  8. #6
    MPG350's Avatar
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    Apr 2014
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    Trinity, FL
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    Not sure about the first question. But no on second question.
    It is a super reliable ski, never heard of fuel pump issues.

  9. #7

    Join Date
    Jan 2006
    Location
    Patterson La
    Posts
    369
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    Normally they fail after the ski has sat over the winter, or if you get water in the tank. Its an easy fix, and not near as expensive as the Seadoo DI pumps. Its not really an issue on the newer skis, but I've changed several on the older models.

  10. #8
    Pain is fear leaving your body.... rlovebk's Avatar
    Join Date
    Aug 2008
    Location
    So. Cal.
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    Funny. My ski has been thru 7 winters. Same pump.

  11. #9
    CJ River Rider's Avatar
    Join Date
    Jul 2008
    Location
    Central NJ
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    Quote Originally Posted by rlovebk View Post
    Funny. My ski has been thru 7 winters. Same pump.
    Me also through 6 winters

  12. #10

    Join Date
    Jul 2014
    Location
    Carrollton, TX
    Posts
    9
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    I have a 2014 and have had zero problems with it. The only thing I don't like about it is the lack of aftermarket go fast stuff.

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