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  1. #1

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    Bit of engine trouble

    Hi all just got a slight problem with my ski its a 2008 ultra 250x with 91 hours on the clock. Been sat in the garage for about a month and decided to take it out today and for the first few minutes it ran fine then just seemed to loose all power and run really lumpy. Thought it wold clear its self but after about 10mins of trying it didnt. Starts and idles out of the water fine. I changed the plugs about 4 months ago so wouldnt think they could have gone already. Any help would be great.


  2. #2
    Olomana's Avatar
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    You might want to start with the spark plug.
    Since it has been sitting in the garage for a month with maybe saltwater not all flush from the waterbox properly.
    Easy thing to do right away, remove the plug and check for any rust/depot on the plugs.

  3. #3

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    ok will check and give them a clean up in the morning. thanks for the reply.

  4. #4
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    Bit of engine trouble

    You cant clean the spark plugs to fix them you have to replace them.

  5. #5
    really cant clean the plugs just replace them, you may want to start it with the seat off and look for an exhaust leak to.

  6. #6

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    Quick update. My new spark plugs finally arrived today. Fitted them took the ski out and the problem is still there. Seems like it wants to go but the engine then bogs down and it runs bad again. I am wondering if it could be fuel related. Annoyes me because the last time i took it out it ran fine.

  7. #7
    Olomana's Avatar
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    Does it idle correctly? It bogs only when you try to go?!

  8. #8

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    idles fine in and out of the water. yeah preety much. ill hold it full throttle and it will hardly move.

  9. #9
    Olomana's Avatar
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    Check your SC belt tension and your aibox . I heard 250/260 had issue with airbox trumpet getting stuck against the hull .

  10. #10

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    ok will have a look at them tomorow. is the supercharger belt hard to check.

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