Using FI/Carb Cleaner on a GT-40

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  • coloradonautique
    • Sep 2006
    • 98

    • Denver, Colorado

    • 2001 AN 1990 SNCB

    Using FI/Carb Cleaner on a GT-40

    Hey all,
    I mistakenly fogged the intake on my GT-40 last fall (my first EFI engine). Many folks mentioned it is a dry intake and not recommended, so I will not be doing that again next fall.
    So here is my question as the spring start up approaches..

    Can I clean out the intake (and any residual fog from my fall mistake) by spraying in Carb/Fuel injecter cleaner while the engine is running? Or are we back to the "dry intake" problem and not spraying anything in there? I did a search for related posts but found few that mentioned "cleaner" at all with an EFI engine.

    Also, any thoughts on the downsides (read: potential damage) of the fogging from last fall. Several have mentioned the MAF not reacting well to the oil, but other posts question whether the GT-40 really has a MAF or not. All comments welcome.

    I may also suck up my pride and give Whitelake or Skidim a call and see what they have to say on the matter. I am wondering what other folks have heard/experienced.

    Thanks in advance,

    Lorin
    ___________________
    2001 Air <-- New boat
    1991 Ski <-- Old boat
    Denver, CO
  • M3Fan
    1,000 Post Club Member
    • Jul 2003
    • 1034



    #2
    RE: Using FI/Carb Cleaner on a GT-40

    Based on the GT40 service manual, there is no traditional MAF sensor. It does have an ACT sensor (air change temperature) which measures air temperature in the intake, which is almost like a MAF sensor from what I understand (thermoresistor based).

    I'm sure you're not the first guy to fog a GT40. I wouldn't worry about it too much.
    ~~~~~~~~~~~~~~~~~~~~
    2000 Ski Nautique GT-40
    2016 SN 200 H5
    www.Fifteenoff.com

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    • H2O
      • Jul 2006
      • 247



      #3
      RE: Using FI/Carb Cleaner on a GT-40

      I've sprayed a little Sea Foam into the intake on a GT40 several times with no ill effects. Fire it up and go, no worries.

      Comment

      • coloradonautique
        • Sep 2006
        • 98

        • Denver, Colorado

        • 2001 AN 1990 SNCB

        #4
        Thanks

        Thanks for the reassurances guys. I look forward to firing up the boat soon.
        ___________________
        2001 Air <-- New boat
        1991 Ski <-- Old boat
        Denver, CO

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