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  1. #1

    Join Date
    Mar 2007
    Location
    Richmond, Ky
    Posts
    8

    Sudden power loss

    On my first time out this season my 2007 Ultra was running great...for a while. After getting to 7850 RPM's there was a sudden total loss of power followed by continuing hesitations upon acceleration attempts.
    Continuing efforts to accelerate eventually smoothed out the hesitations but the maximum RPM's dropped to 7750+/-.
    The Ski now runs smoothly but maximum RPM's are down. All recalls have been done. 15 hours on a stock Ski with a wedge.
    Any ideas about the cause of the problem and possible fixes?
    I hope every had a safe and fun Memorial Day. The water at Lake Cumberland Kentucky was 67 degrees but the weather was great!

    Thanks in advance for your help and ideas.
    Last edited by larryhood; 05-26-2008 at 09:00 PM.


  2. #2
    Try replacing the plugs. It sounds as though your having one go out on you.

  3. #3
    sportman's Avatar
    Join Date
    Mar 2008
    Location
    Abu Dhabi-UAE
    Posts
    333
    i have no idea what happen to ur ski but can you tell me what was ur lowest rpm?

  4. #4
    Fat Man, Little Boat Region8Ultra250X's Avatar
    Join Date
    Jun 2007
    Location
    Jersey
    Posts
    5,563
    +1
    169
    i am experiencing the same thing.... whagt was th cheap source for plugs again.... my dealer was asking 20 a piece for the champions

  5. #5

    Join Date
    Jan 2007
    Location
    Georgia
    Posts
    20
    +1
    1
    cr9ek from advance less than $6.

  6. #6
    cjm780's Avatar
    Join Date
    May 2008
    Location
    V-town
    Posts
    17

    plugs

    Quote Originally Posted by JWilson View Post
    cr9ek from advance less than $6.
    Have you used the cr9ek plugs, in your ski yet? They good enough to run for awhile or just to get you out of a bind? I was going to go to the dealer and pick up a set. Was running around 7300-7500 RPMs yesterday. I figured it would be wise to keep a set in my ski just incase.

  7. #7

    Join Date
    Mar 2007
    Location
    Richmond, Ky
    Posts
    8
    The Ski now has cr9ek plugs that replaced the original plugs at about 6 hours. My dealer gave me new OEM plugs when the recalls were done and I will change to those asap.
    COULD A BAD PLUG CAUSE THE ULTRA THAT WAS PERFORMING WELL @7850 RPM'S TO LOSE POWER COMPLETELY,THEN GO THROUGH A PERIOD OF HESITATION AND THEN RETURN TO SMOOTH OPERATION BUT AT A MAX RPM OF 7750?
    This all took place within a 5-10 minute period. I even raced another Ultra after the lower RPM"s and held my own. But, I know that with the original performance of the day I would have performed better.
    I'm curious for explanitions...and will change the plugs.
    Thanks for the replies.
    Last edited by larryhood; 05-26-2008 at 08:59 PM.

  8. #8
    ercBOOSTED's Avatar
    Join Date
    Apr 2007
    Location
    Pittsburgh, Pa
    Posts
    1,093
    +1
    3
    Plugs going bad do cause a loss of power. Last year, my ski was idling rough and top speed was done about 1-2 mph. Skip helped me out and sold me a set an extra set and overnighted them so I could have them for the weekend. The rough idling was gone and I got my speed back. I haven't tried the other plugs yet, probable won't unless I cant get the regular plugs. I got lucky and found a new set on ebay for $41 for the set of four. Can't beat that. I always keep an extra set in the truck just in case.

  9. #9
    LOOKING HYNES's Avatar
    Join Date
    Apr 2007
    Location
    Brooklyn, MD
    Posts
    740
    Most def. the plugs happened to me twice already.

  10. #10

    Join Date
    Jan 2007
    Location
    Georgia
    Posts
    20
    +1
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    I have about 5 hours on the cr9ek plugs.

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