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    83 650 gl

    What NGK plugs fit the 83 650gl.There was D8EA in it when I bought it put same in and starting to misfire and run poorly.Got NGK catalogue and says DR8ES-L which is correct.
    1983 GS 650 gl

    1982 GS 850 gl

    1980 GS 550L

    1982 GS 650 G(KATANA)

    Gsx 1400 daily ride

    #2
    The answer can be found on page 2-10 of the factory Suzuki service manual for your bike...



    gs650 spark plugs.jpg

    FWIW: the D8EA is a smaller diameter plug than the more common D8ES. Rule of thumb is all the 2V/cylinder GS bikes, excepting for the 650, use the D8ES, whereas the 4V/cylinder bikes used the smaller D8EA plugs.

    R plugs, which stands for resistor, are not ideal since the plug cap already has a resistor. Generally speaking they won't hurt anything though.
    Last edited by Nessism; 06-19-2021, 03:38 PM.
    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

    Comment


      #3
      Originally posted by angus View Post
      What NGK plugs fit the 83 650gl.There was D8EA in it when I bought it put same in and starting to misfire and run poorly.Got NGK catalogue and says DR8ES-L which is correct.
      Same plug as my 79 750 used, NGK D8EA
      All the robots copy robots.

      Komorebi-The light filtering through the trees.

      You are free to choose, but you are not free from the consequences of your choices.

      Comment


        #4
        Originally posted by angus View Post
        What NGK plugs fit the 83 650gl.There was D8EA in it when I bought it put same in and starting to misfire and run poorly.Got NGK catalogue and says DR8ES-L which is correct.
        That would be NGK D8EA
        All the robots copy robots.

        Komorebi-The light filtering through the trees.

        You are free to choose, but you are not free from the consequences of your choices.

        Comment

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