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  1. #1

    06 STX 12 (only 37 hours) just out of storage hard to start and wont go over 4000 rpm

    06 STX 12F (only 37 hours) just out of storage hard to start and wont go over 4000 rpm.
    Has anyone had a similiar problem or is this an obvious fix to anybody out there?
    It will rev up past 7000 on the trailer but only 4000 in the water. Sometimes it starts right up but other times it takes many tries??
    Any help would be greatly appreciated.


  2. #2
    Starat with basics.

    Check compression on all cyls and report.

  3. #3
    steve45's Avatar
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    Bad fuel, gummed up carbs, plugged fuel filter are all very likely culprits after long term storage.

  4. #4

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    maybe not gummed up carbs... since it's fuel injected... but MAYBE dirty fuel injectors? (but that symptom is more like rough running).
    Do you use any fuel stabilizer during storage? Do you get any error co

    I think there's another person on the forums lately saying they can't get past a certain RPM either... or engine quits when it does.

    On typical 4 stroke fuel injected engines... (assuming it's a healthy block), lack of power is one of 3 things... fuel... ignition.. or timing.
    Perhaps it might be time to start checking sensors?

  5. #5

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    My Kawi is older... but does yours have a Slow Mode?

  6. #6
    steve45's Avatar
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    Oops! Sorry. Didn't notice what it was.

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