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1998 40 hp Force outboard (Mercury) starting problems

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  • 1998 40 hp Force outboard (Mercury) starting problems

    i bought my boat about three months ago and it was running fine until i ran into a starting problem. About three weeks ago i was out on the water and i began to crank my boat and all i heard was a clicking noise from the motor, it finally cranked up. Now most of the time when i crank it all i hear is that clicking noise with an occasional crank every now and then. The guy i bought the boat from said he had replaced the solenoid this past summer. What could be the problem?

  • #2
    Re: 1998 40 hp Force outboard (Mercury) starting problems

    Could be bad battery cables/connections, or a bad battery. Undo all the battery cable connections (both positive and negative cables) and clean them. See if that helps. If not, get the battery tested.

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    • #3
      Re: 1998 40 hp Force outboard (Mercury) starting problems

      Sorry I forgot to mention, I tried hooking it up to a different battery and it still wouldn't work, but I guess it could still be bad cables.

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      • #4
        Re: 1998 40 hp Force outboard (Mercury) starting problems

        Sounds like a bad solenoid.Or the connections are loose.Possibly the starter.
        Test light.The solenoid should have power across both lugs when the key is activated.
        No power on both(bad solenoid).Power on both(bad starter).J


        Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
        ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

        In Scenic , Beautiful San Sebastian by the sea Florida

        88 Bayliner 21CC 2001 Mercury 225 HP EFI

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        • #5
          Re: 1998 40 hp Force outboard (Mercury) starting problems

          Update on the starting problem. I bypassed the solenoid to crank the motor and it cranked right up. So im guessing i need to buy another solenoid. My next questions is this, do i need to buy one that is specifically for this motor or could i just pick one up at a autozone store? thanks

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          • #6
            Re: 1998 40 hp Force outboard (Mercury) starting problems

            By bypassing the solenoid did you use jumper cables directly from the battery to the starter or did you use the original wiring and bridge past the solenoid? If you went from the starter to the battery you could still have wiring problems. If you bridged past the solenoid then the main wiring is OK but you may be getting a voltage drop on the switch circuit to the solenoid or the solenoid itselfis no good. You could supply 12 volts to the switch side of the solenoid circuit to test this.

            If you jumped from the battery to the starter any of the wires in the starter circuit could be the problem.

            Check all your connections first before you start replacing things. Negative cable where it attaches to the engine block can corrode. You may also have a voltage drop on the switch circuit to the solenoid. Cable ends and cables themselves can corrode. Replacing the solenoid will not fix these problems. Use a multimeter set to OHMS. You should have very little resistance in the wires.

            Any similar rating solenoid should do the job if you find it is the solinoid.

            Good Luck

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            • #7
              Re: 1998 40 hp Force outboard (Mercury) starting problems

              Ok, I did bridge past the solenoid so how exactly do I check the voltage on the switch circuit to the solenoid. And if this is the problem how can it be fixed. Thanks

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              • #8

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                • #9
                  Re: 1998 40 hp Force outboard (Mercury) starting problems

                  If it's not too much trouble a diagram would be greatly appreciated. Thanks a lot for the help.

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                  • #10
                    Re: 1998 40 hp Force outboard (Mercury) starting problems

                    Bridge between the + from the battery to the + switch wire. You can do this with a piece of metal or make up a switch wire. Make sure the ground wire has a good earth.

                    I have a switch wire that I use to work the starter when timing the motor. It is just a length of wire with alligator clips each end and a push button that needs to be held in for it to work.

                    If the starter works by this method its you wiring that is the problem. If not its your solenoid.

                    Hope this makes sense.
                    Attached Files

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                    • #11
                      Re: 1998 40 hp Force outboard (Mercury) starting problems

                      ok, i bridged between the + from the battery to the + switch and all i got was a clicking noise again so i guess its a bad solenoid. I really appreciate all the help, it made perfect sense and the diagram was helpful as well. Once i get a new solenoid i will update the situation. thanks again for the help.

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                      • #12
                        Re: 1998 40 hp Force outboard (Mercury) starting problems

                        this is good stuff. I'm having similar problems and this helps ALOT.

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                        • #13
                          Re: 1998 40 hp Force outboard (Mercury) starting problems

                          this is good stuff. I'm having similar problems and this helps ALOT.

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                          • #14

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                            • #15
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