What are good grounds?

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  • robdsuzuki

    #1

    What are good grounds?

    Sorry for such a basic question. But I am just now learning all about motorcycle electric. I am really enjoying the learning. And all of your help. I read a lot about "make sure you have good grounds". What makes a ground good or bad? Thanks - Rob.
  • Tom R
    Forum Mentor
    Past Site Supporter
    • Sep 2010
    • 777
    • Chicago, IL

    #2
    Originally posted by robdsuzuki
    Sorry for such a basic question. But I am just now learning all about motorcycle electric. I am really enjoying the learning. And all of your help. I read a lot about "make sure you have good grounds". What makes a ground good or bad? Thanks - Rob.
    Bare, corrosion free metal.
    -1980 GS1100 LT
    -1975 Honda cb750K
    -1972 Honda cl175
    - Currently presiding over a 1970 T500

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    • posplayr
      Forum LongTimer
      GSResource Superstar
      Past Site Supporter
      • Dec 2007
      • 23673
      • Tucson Az

      #3
      see............

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      Last edited by posplayr; 09-13-2011, 01:28 PM.

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      • Guest

        #4
        A stainless steel star washer on either side of your terminal lugs. They dig in real good and insure a good ground.

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        • Guest

          #5
          A good ground will have no resistance when measured with a ohmeter from two different points, such as a terminal connected to a wire and that wire then connected to the frame. Although some grounding circuits will have some resistance and can function OK, ideally a grounding circuit with no resistance would be optimal, as resistance can cause such problems as
          poor lighting, sluggish starting, and may even cause a circuit to fail if the resistance is too high. These are usually referred to as "dirty" grounds. Resistance in wiring when there shouldn't be any causes voltage drops.
          A ground provides a path to complete an electronic circuit. If you have
          a poor ground that circuit could fail, the usual causes are rust or corrosion
          on mating surfaces, corroded or faulty wiring (only a few unbroken strands to allow current flow), paint on frame not allowing metal to metal contact with a terminal. Loose connections, etc.
          A good ground should be tight, the metal should be non corroded and shiny.

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          • robdsuzuki

            #6
            Thank you all very much. Appreciate your time teaching and advising. Rob

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