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Pickup coil wire color help

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  • Pickup coil wire color help

    79sf

    I am in the middle of a complete pickup coil wire replacement after fighting with them for a while.

    I was being smart doing one by one, splicing in at the factory splice location just outside the timing cover. On the last two (the white and blue pair) I accidentally went to fast and I have no idea what color the white turns into or the blue turns into. It’s either black or gray but not sure.

    Could someone save me from my dumb error?

    Thanks
    79 SF

  • #2
    I don’t have the option to test drive due to snow here but it seems to run/idle fine regardless of whichever way I have the wires spliced, so is it safe to say polarity doesn’t matter in this case?
    79 SF

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    • #3
      There are 2 white wires which I believe are common so those 2 shouldn't matter, the other 2 are the 1&4 and 2&3 trigger wires, those will matter if reversed.
      2H7 (79) owned since '89
      3H3 owned since '06

      "If it ain't broke, modify it"

      Comment


      • #4
        At the factory splice location on my bike I have orange, blue, black and gray.

        From one pickup, light orange turns to orange, light blue turns to blue. I did that one correctly for sure.

        The other makes no sense to me. The light blue and white switch to gray or black.
        79 SF

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        • #5
          I've been goin' through my pics and I know I have a pic of those connections.

          I think they are on my older garage laptop gimme a few minutes and I'll see if I can find 'em.
          1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors )
          1979 XS1100SF (stock-euro mods planned)
          1984 XV700L Virago (to be hot-modded)
          1983 XJ750MK Midnight Maxim (semi-restored DD)
          1977 XS650D ( patiently awaiting resto)

          Sometimes it takes a whole tank of gas before you can think straight.

          Comment


          • #6
            Originally posted by Schming View Post
            I've been goin' through my pics and I know I have a pic of those connections.

            I think they are on my older garage laptop gimme a few minutes and I'll see if I can find 'em.
            Awesome thanks
            79 SF

            Comment


            • #7
              This might help:

              -Mike
              _________
              '79 XS1100SF 20k miles
              '80 XS1100SG 44k miles
              '81 XS1100H Venturer 35k miles
              '79 XS750SF 17k miles
              '85 Honda V65 Magna ~7k miles
              '84 Honda V65 Magna 48k miles (parts bike)
              '86 Yamaha VMAX 9k miles

              Previous: '68 Motoguzzi 600cc + '79 XS750SF 22k miles +'84 Honda V65

              Comment


              • #8
                Lil blurry . . .

                ... but hope this helps


                1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors )
                1979 XS1100SF (stock-euro mods planned)
                1984 XV700L Virago (to be hot-modded)
                1983 XJ750MK Midnight Maxim (semi-restored DD)
                1977 XS650D ( patiently awaiting resto)

                Sometimes it takes a whole tank of gas before you can think straight.

                Comment


                • #9
                  Originally posted by Schming View Post
                  ... but hope this helps


                  Perfect! Thanks a ton.
                  79 SF

                  Comment


                  • #10
                    You're welcome. I exposed these connections when I separated the Neutral switch wire from the harness and put it in a harness of its own so moisture from rain or washing the bike wouldn't cause a shunt to the pick-up coil wires. I was curious how the stock connections were made under the silicone sheath.
                    Crimped non-insulated butt connectors with marine heat shrink tubing is the way to go and then slide the silicone sheath back over.

                    Soldering the wires leads to brittleness from the heat and the vibrations from the bike wreak havoc on the connections.
                    1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors )
                    1979 XS1100SF (stock-euro mods planned)
                    1984 XV700L Virago (to be hot-modded)
                    1983 XJ750MK Midnight Maxim (semi-restored DD)
                    1977 XS650D ( patiently awaiting resto)

                    Sometimes it takes a whole tank of gas before you can think straight.

                    Comment

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