2010 Ski Nautique-Speed problem only during trick runs

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  • Hosei university
    • Jun 2024
    • 6

    • JAPAN

    • ①Ski Nautique 200(2010 Correct Craft 200 OB) 　PCM ex343 ②Ski Nautique 200(2010 Correct Craft 200 CB) 　PCM ex343 ③Malibu monsoo340 2005year ④ Ski Nautique 200 2020year 　ZR4 6.0L
    #1

    2010 Ski Nautique-Speed problem only during trick runs

    Hello fellow water skiers around the world,
    I’m a member of the water ski team at Hosei University in Japan.

    I have a question about a problem with our boat and would really appreciate any advice.

    When we do tricks, we often have trouble with the boat speed. The symptoms are: when the water surface is calm, the boat runs exactly at the set speed. However, if the water gets a little rough, the boat fails to hold the speed and often accelerates way beyond the set point. This does not happen in slalom or jump – in those cases, the boat runs exactly at the set speed without any issues.

    Has anyone experienced this or know what might be causing it?
    Our boat is a 2010 Ski Nautique. It has an EX343 engine (2010 model) and uses Zero Off speed control.

    Thanks a lot for your help!
    Tags: None
    • SilentSeven
      1,000 Post Club Member
      • Feb 2014
      • 2038

      • Bellevue WA

      • 2004 Nautique 206
      #2
      Does your Zero Off system have the old or new GPS pucks? If still on the old pucks, research the associated problems and see if they match what you describe.
      2004 206 Air Nautique Limited - Black with Vapor Blue (family style)
      1997 Masters Edition Nautique - Zephyr Green - gone (amazing ski wake)
      1982 Mastercraft Powerslot - gone (a primitive but wonderful beast)
      Bellevue WA
        👍 1

        Comment

        • jpwhit
          Senior Member of PLANETNAUTIQUE
          • Aug 2016
          • 641

          • Cary, NC

          • 1998 Ski Nautique 2012 Nautique 200 2014 MasterCraft X25 . 2019 MasterCraft ProStar
          #3

          https://www.planetnautique.com/vb5/f...608#post670608

          https://www.planetnautique.com/vb5/f...448#post657448
            👍 2

            Comment

            • Hosei university
              • Jun 2024
              • 6

              • JAPAN

              • ①Ski Nautique 200(2010 Correct Craft 200 OB) 　PCM ex343 ②Ski Nautique 200(2010 Correct Craft 200 CB) 　PCM ex343 ③Malibu monsoo340 2005year ④ Ski Nautique 200 2020year 　ZR4 6.0L
              #4
              Thank you all for your wonderful and insightful responses. I truly admire and sincerely appreciate everyone here — your knowledge and support mean a lot to us.

              Thanks to your help, we were able to understand the system better and, although our solution isn’t perfect, we’ve managed to temporarily resolve the issue.

              Let me explain what happened to us.
              About a year ago, some of our university students replaced one of the GPS antennas. It turns out that this replacement was likely causing the malfunction. As you know, there are two antennas. We test-ran the boat while unplugging each antenna one at a time. When we disconnected one specific antenna, the boat was finally able to maintain a stable speed without sudden acceleration or deceleration.

              At the moment, we’re only running with one functioning antenna, which means the GPS signal coverage is about half of what it should be. Still, it’s good enough for us to continue training.

              This is only a temporary workaround, but we plan to try a software update when we have time.

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