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  • yamman
    XSive
    • Sep 2008
    • 33
    • Calgary, Canada

    #1

    xs1100

    Please help. My battery is going dead. Bought new battery had bike regrounded but battery still going dead. When I disconnect the headlight and signals from my faring it runs and actually recharge itself. Why and what do I need to do.

    Thanks!
  • madmax-im
    Master of XSology
    • Sep 2007
    • 6751
    • Southern Comfort...Wendell NC

    #2
    better check the alternator and rectifier or whatever its called
    1980 XS650G Special-Two
    1993 Honda ST1100

    Comment

    • bikerphil
      Master of XSology
      • Jan 2008
      • 8634
      • South Flori-DUH

      #3
      discharge

      Clean alt. connections (behind fuse box) and regulator connections (under tank). Check voltage at battery while running at 2500 RPM, should be about 14.5 V.

      Welcome to the forum!
      2H7 (79) owned since '89
      3H3 owned since '06

      "If it ain't broke, modify it"

      โ˜ฎ

      Comment

      • ClarkGriswald
        XStremely XSive
        • Aug 2008
        • 256
        • Bloomingdale, MI

        #4
        Could put an ampmeter inline (series) with the battery. If it reads anything with the key off, then something is drawing.
        Last edited by ClarkGriswald; 09-21-2008, 08:29 PM.
        XS1100 F/G (79 Bike/80 Motor)
        Grab a tetanus shot and jump on!!!

        Comment

        • XSPastor
          XSive Maximus
          • Oct 2007
          • 602
          • Gaithersburg, MD

          #5
          If it runs and charges fine without the fairing lights connected, then you'll need to go through the wiring in the fairing. Somehow it's drawing way too much current - probably even drawing on the battery when the key is off. Also, make sure that the alternator is putting out at least 14 volts at 3k rpm.
          Tim Ripley - Gaithersburg, MD
          1981 XS1100 Special "Spoiled Rotten" Just sold - currently bikeless!!
          23mm float height
          120 main jets
          42.5 pilot jets
          drilled stock airbox with K&N
          Jardine 4 to 1 Exhaust
          spade fusebox
          1st and 2nd gear fix

          Comment

          • Ivan
            XS-XJ Guru
            • Jul 2008
            • 2524
            • Hutchinson KS

            #6
            A draw can be isolated by removing the fuses with the key off and connecting a test light across the terminals. If any of them pass enough current to light the test light, you know the draw is in that circuit.
            Ich habe dich nicht gefragt.

            Comment

            • yamman
              XSive
              • Sep 2008
              • 33
              • Calgary, Canada

              #7
              replys

              thank yall for your help..hope i get it fixed..

              Comment

              • tarzan
                XS-XJ Guru
                • Apr 2008
                • 1700
                • Chandler,Az.

                #8
                If the light and signals will work but discharges the batt it is not the rectifier/regulator.If not charging the headlight and tach wont work.It is probably a short somewhere behind the headlight or maybe a switch.
                80 SG XS1100
                14 Victory Cross Country

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