Fuel gauge float working backwards

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  • Denman2112
    • Mar 2026

    #1

    Fuel gauge float working backwards

    The fuel gauge float on my 1980 GS 550 l is working backwards,i had it out of the tank i plugged it in it worked fine.I put it back in and it seems to be working backwards, it reads full on an empty tank,as far as i can see it only goes in one way.Checked the wires even tried reversing them,Any ideas would be appreciated
  • Brendan W
    Forum Sage
    Past Site Supporter
    • Jul 2013
    • 4931
    • Wexford, Ireland

    #2
    Full reading means high current through the float gauge.
    The 850 manual has a good troubleshooting section starting on p262 here http://members.dslextreme.com/users/bikecliff/
    550 probably similar.
    97 R1100R
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    80 GS850G, 79 Z400B, 85 R100RT, 80 Z650D, 76 CB200

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    • Denman2112

      #3
      Thank You !!!

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