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Neutral Switch Strange Wiring?

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  • #1

    Neutral Switch Strange Wiring?

    I just completed the 79 and went for a ride runs great. The neutral light is on all the time. Here's what I found? Would this not keep the switch on all the time? The red wire is that original? Why would someone do this ? I did not have time to remove or do any checking yet got to warm up a little

    82 XJ1100J
    81 Venturer
    Newly acquired Aches N Pains collection
    Tags: None
  • #2
    An issue with the pick up coil wires. They did that so it'll stay running when put in gear.

    You need to open up that harness and repair the wires or get a different set of pick ups.
    Greg

    Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

    ― Albert Einstein

    80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

    The list changes.

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    • #3
      Thank You

      Greg,
      Thank you this was very strange to me. I appreciate your help this is great it just made no sense to me. I will trace out the wires and check them for anything fixable and search for some pick up coils if no luck.
      I would have removed and had no clue

      something to be said for experience.

      Thank you
      82 XJ1100J
      81 Venturer
      Newly acquired Aches N Pains collection

      Comment

      • #4
        The insulation deteriorates inside the sheathing and the wires will touch each other and ground through the neutral switch. As soon as it's shifted into gear and the light goes out it loses ground and the engine will die.

        Get one of these electrical gurus to explain why, I don't understand myself, just know it does.
        Greg

        Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

        ― Albert Einstein

        80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

        The list changes.

        Comment

        • #5
          Another possibility is a defective neutral switch. Same symptoms as above.
          XS1100 3X0 '82 restomod, 2H9 '78 chain drive racer, 3H3 '79 customized.
          MV Agusta Brutale 910R '06.
          Triumph 1200 Speed Trophy '91, Triumph 1200 '93.
          Z1 '73 restomod, Z1A '74 yellow/green, KZ900 A4 '76 green.
          Yamaha MT-09 Tracer '15 grey.
          Kawasaki Z1300 DFI '84 modified, red.

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          • #6
            Maybe someone wanted to bypass the safety interlock? Assuming the rest of the system is wired correctly, if the neutral light is off, and the clutch lever is not pulled in, you can't start the engine. So, if the neutral switch isn't grounding correctly, the PO wouldn't have been able to start the engine without pulling the clutch lever. This little hack makes the interlock think the bike is always in neutral, allowing the start button to work at all times.
            1980 XS850SG - Sold
            1981 XS1100LH Midnight Special (Sold) - purchased 9/29/08
            Fully Vetterized and Dynojet Kit added, Heated Grips, Truck-Lite LED headlight, Accel Coils, Irridium plugs, TKAT Fork Brace, XS850LH Final Drive & Black SS Brake lines from Chacal.
            Here's my web page devoted to my bike! XS/XJ User's Manuals there, and the XJ1100 Service Manual and both XS1100 Service manuals (free download!).

            Whether you think you can, or you think you cannot - You're right.
            -H. Ford

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