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Fuel Gauge Sender Resistance Levels

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    #1

    Fuel Gauge Sender Resistance Levels

    Hey guys,

    I'm focusing on my fuel tank right now (got a new petcock and such). I was measuring the resistance of my fuel gauge sender and I wanted to know what type of numbers I should be seeing. I searched around and found a post here:

    Fuel gauge sending unit repair with pics - The GSResources Forums
    http://www.thegsresources.com/_forum/showpost.php?p=1006401&postcount=36
    This is pretty self-explanatory I think...


    That said it should "sweep from 0-100 ohms," but I am nowhere in that ballpark.

    Empty tank, right side up ("out of gas"): 0.106 ohms.
    Empty tank, upside down ("full tank"): 0.014 ohms.

    Do I need to pull the whole unit out of the tank? I didn't want to because I'd have to get a new gasket and all, but I will to get it working right.
    Tags: None
    #2
    Ill measure the two I have when I get home and see if theyre near your readings.

    Comment

      #3
      You shouldn't need a new gasket, it's rubber, I've never needed one.

      Take a look, take the cover off, clean it out, it's pretty easy.
      http://img.photobucket.com/albums/v5...tatesMap-1.jpg

      Life is too short to ride an L.

      Comment

        #4
        Originally posted by tkent02 View Post
        You shouldn't need a new gasket, it's rubber, I've never needed one.
        Ah, in that case, off it comes!

        Comment

          #5
          Originally posted by srg View Post
          Hey guys,

          I'm focusing on my fuel tank right now (got a new petcock and such). I was measuring the resistance of my fuel gauge sender and I wanted to know what type of numbers I should be seeing. I searched around and found a post here:

          Fuel gauge sending unit repair with pics - The GSResources Forums
          http://www.thegsresources.com/_forum/showpost.php?p=1006401&postcount=36
          This is pretty self-explanatory I think...


          That said it should "sweep from 0-100 ohms," but I am nowhere in that ballpark.

          Empty tank, right side up ("out of gas"): 0.106 ohms.
          Empty tank, upside down ("full tank"): 0.014 ohms.

          Do I need to pull the whole unit out of the tank? I didn't want to because I'd have to get a new gasket and all, but I will to get it working right.

          What scale is your ohm meter reading in? If you multiply those reading by 1000 they look in the ballpark...

          The mere fact you are getting readings is a good sign the thing is working...
          '85 GS550L - SOLD
          '85 GS550E - SOLD
          '82 GS650GL - SOLD
          '81 GS750L - SOLD
          '82 GS850GL - trusty steed
          '80 GS1100L - son's project bike
          '82 GS1100G - SOLD
          '81 GS1100E - Big Red (daily rider)

          Comment

            #6
            Originally posted by hikermikem View Post
            What scale is your ohm meter reading in? If you multiply those reading by 1000 they look in the ballpark...

            The mere fact you are getting readings is a good sign the thing is working...
            probably ............

            Comment

              #7
              Originally posted by hikermikem View Post
              What scale is your ohm meter reading in? If you multiply those reading by 1000 they look in the ballpark...
              Oh! I didn't even think to check the units. It was probably measuring in kiloohms or something. I'll go look at the meter.

              Comment

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