GT-40 suddenly won't start-HELP

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  • phantom268
    • Aug 2005
    • 57

    • Guntersville, AL

    #1

    GT-40 suddenly won't start-HELP

    Yesterday we took the boat out and everything was running great. Started up with no problems at the launch. My wife and I took a set each wakeboarding. Then another friend put on the board and got in the water. All of a sudden the boat simply would not start. WE were getting power to the plugs, battery was good, most anything we could think of electrical was OK as well. WE suspect possible fuel problem in the filter or pump, or maybe a short or blown fuse in related hardware. Does anyone have any advice on what could cause such a sudden death to make the engine not start like that? If its something relatively simple I"d like to get it up and running this holiday wknd to take it back out on the water! Thanks for any help you can offer!

    Jeff
    Tags: None
  • surroundsound64
    1,000 Post Club Member
    • Jul 2005
    • 2147

    • Longview, TX

    • 2018 230 1981 Ski Nautique
    #2
    RE: GT-40 suddenly won

    Spray some carb cleaner or starting fluid (or WD-40 if nothing else is around) in the carb (or air intake if you don't have a carb) and see if it'll fire. Apply liberally, but make sure to put the flame arrestor or whatever you took off, back on.

    It's gotta be either fuel, air, or spark. You say you were getting spark, so that leave fuel or air.

    Good luck.
    2018 SAN 230
    1981 Ski Nautique
    Sold - 2011 Sport 200V
    Sold - 2000 SAN

    Comment

    • slob02
      • Sep 2003
      • 333

      • Shawnee Lake Jamestown, Ohio

      • 1993 SNOB 1997 196 2004 206 Team 2008 210 Team 2020 210
      #3
      RE: GT-40 suddenly won

      Make sure that when you turn the key on, you hear the fuel pump make a "noise"...If not, check your lanyard switch........then your fuel pump relays.........and the fuse coming from the battery. Easy places to start.
      2008 Super Air 210 Team
      2004 AIR 206 Team
      1997 Ski Nautique 196
      1993 Ski Nautique SNOB

      Don\'t let yourself get old and say, \"I wish I would have.........\"!

      Comment

      • skinautique
        1,000 Post Club Member
        • Jul 2003
        • 1749

        • Colorado

        #4
        RE: GT-40 suddenly won

        check your tether switch and make sure your throttle is in nuetral. Also, do you hear the fuel pump spool up when you turn the key? There is also a keep alive wire that could have a bad fuse. That is attached to your battery cable.

        Comment

        • phantom268
          • Aug 2005
          • 57

          • Guntersville, AL

          #5
          RE: GT-40 suddenly won

          Thanks for the tips! Could someone point me in the right direction of finding where the fuel pump relays are located? I've been running through my engine and boat manuals and can't seem to locate that info! Thanks again!

          Jeff

          Comment

          • phantom268
            • Aug 2005
            • 57

            • Guntersville, AL

            #6
            RE: GT-40 suddenly won

            Scratch that I think I found them finally

            Comment

            • boatech
              • Aug 2006
              • 247


              #7
              RE: GT-40 suddenly won

              is the motor cranking and not starting or is it dead not doing anything. is the starter turning the motor over? the lanyard is a great place to start they go out all the time also the starter solenoids go bad all the time. need a little better explnation of what boat is doing to be a better help.

              Comment

              • phantom268
                • Aug 2005
                • 57

                • Guntersville, AL

                #8
                RE: GT-40 suddenly won

                Yes the motor is turning over and engine cranking but its not starting up. Here is an update...my dad took the boat to a mechanic friend of his and they determined the fuel pump doesn't appear to be getting any voltage at all. So that is a good step in the right direction. What could be causing that? IS there a fuse panel or something like that in these boats? What should I look for now to see why its not getting any power? I think the relays are good they looked at them and they seem to be fine. Would the lanyard malfunctioning cut power to the fuel pump? I'll do some searches for the lanyard issue to see how to possibly test for and fix that.

                Thanks for all the help!

                Comment

                • TRBenj
                  1,000 Post Club Member
                  • May 2005
                  • 1681

                  • NWCT

                  #9
                  RE: GT-40 suddenly won

                  Yup, check the lanyard first.

                  If that checks out fine, go back to your relays. If your fuel pumps arent turning on, its most likely due to the pump itself, a bad relay, or a bad connection at the relay. Check to see if you have 12V at the relay first- but I bet you have a relay or a connection issue if you have no voltage to the pump.
                  1990 Ski Nautique
                  NWCT

                  Comment

                  • slob02
                    • Sep 2003
                    • 333

                    • Shawnee Lake Jamestown, Ohio

                    • 1993 SNOB 1997 196 2004 206 Team 2008 210 Team 2020 210
                    #10
                    RE: GT-40 suddenly won

                    Also check the fuse coming from the battery if you have one...........
                    2008 Super Air 210 Team
                    2004 AIR 206 Team
                    1997 Ski Nautique 196
                    1993 Ski Nautique SNOB

                    Don\'t let yourself get old and say, \"I wish I would have.........\"!

                    Comment

                    • phantom268
                      • Aug 2005
                      • 57

                      • Guntersville, AL

                      #11
                      RE: GT-40 suddenly won

                      Ok last word from my dad is they determined the fuel pump was getting NO power, and they traced it back to the relay. Swapped it with another relay and it cranked right up! Thanks for all the tips you guys were all over it And I'm glad I learned some more about my boat/engine in the process in case I need to know this stuff in the future.

                      Jeff

                      Comment

                      • ToolBoy
                        • Jul 2006
                        • 22


                        #12
                        RE: GT-40 suddenly won

                        Once again, another fuel pump relay. How many is that on this forum alone? Phantom, I went nuts finding the same problem. Tip: Swap out the ignition relay too. Mine was failing intermittently.

                        Comment

                        • slob02
                          • Sep 2003
                          • 333

                          • Shawnee Lake Jamestown, Ohio

                          • 1993 SNOB 1997 196 2004 206 Team 2008 210 Team 2020 210
                          #13
                          RE: GT-40 suddenly won

                          Toolboy is right..............Mine was as well.
                          2008 Super Air 210 Team
                          2004 AIR 206 Team
                          1997 Ski Nautique 196
                          1993 Ski Nautique SNOB

                          Don\'t let yourself get old and say, \"I wish I would have.........\"!

                          Comment

                          • dyoungman1
                            • May 2006
                            • 45


                            #14
                            Looking at this picture which one is the fuel pump relay (right or left) on the GT-40? Mine is a 1998.

                            Thanks,
                            1998 SKI NAUTIQUE - GT40

                            Comment

                            • slob02
                              • Sep 2003
                              • 333

                              • Shawnee Lake Jamestown, Ohio

                              • 1993 SNOB 1997 196 2004 206 Team 2008 210 Team 2020 210
                              #15
                              I honestly can't remember..........Change them both. Not very much.
                              2008 Super Air 210 Team
                              2004 AIR 206 Team
                              1997 Ski Nautique 196
                              1993 Ski Nautique SNOB

                              Don\'t let yourself get old and say, \"I wish I would have.........\"!

                              Comment

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