d8ea for my 1980 gsx 750 et?

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  • ad777
    • Jan 2026

    #1

    d8ea for my 1980 gsx 750 et?

    hi all sure your are all tired of plug questions, am just not sure if there are any variations between british and American models... when put plugs in at beginning of summer put in dr8es, but don't need the resistance in the plug, as I have since found out. if you could let me know if d8ea the best be appreciated! cheers.
  • tom203
    Forum Guru
    Past Site Supporter
    • Aug 2010
    • 8925
    • Norway,Maine

    #2
    The plug caps themselves have resistance (anywhere from 5k ohms to 10k ohms each cap), so spark plug doesn't need it.
    1981 gs650L

    "We are all born ignorant, but you have to work hard to stay stupid" Ben Franklin

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    • ad777

      #3
      Thanks for that...which plugs please? Just read one old post that said the d8ea plugs didn't fit 750,so confused..if someone could clarify be appreciated!

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      • eil
        Forum Sage
        • Dec 2012
        • 3062
        • SE Michigan

        #4
        Originally posted by tom203
        The plug caps themselves have resistance (anywhere from 5k ohms to 10k ohms each cap), so spark plug doesn't need it.
        But check that you have resistors in your plugs, a PO might have removed them. (I removed them on my 850 because they were burnt to a crisp.) If so, then you should use the resistor-enabled spark plugs.
        Charles
        --
        1979 Suzuki GS850G

        Read BassCliff's GSR Greeting and Mega-Welcome!

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        • eil
          Forum Sage
          • Dec 2012
          • 3062
          • SE Michigan

          #5
          Originally posted by ad777
          Thanks for that...which plugs please? Just read one old post that said the d8ea plugs didn't fit 750,so confused..if someone could clarify be appreciated!
          There are multiple generations of 750, the first generation 8-valves used B8ES, the second (and third?) gen (16 valves) used D8EA. You have a second-gen.

          In any case, your service manual will tell you for sure.
          Charles
          --
          1979 Suzuki GS850G

          Read BassCliff's GSR Greeting and Mega-Welcome!

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          • ad777

            #6
            Thanks Charles,is there an easy way to check if resistor in plug lead? Maybe a step by step link?! May have to replace the leads,so be good to know the ins and outs,never done before ..thanks again

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            • Guest

              #7
              NGK D8EA #2120 is all I use in my bike. Did use the Split Fires for a few years, though can't get those any longer.

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              • ad777

                #8
                Thanks all for info,will go for the d8ea's,and fit new caps. Good night from Scotland ��

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