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    Spark plugs recommendation

    What spark plugs would you recommend to me? I need to replace spark plugs on my GS, I have a GS 550 with 750 carbs (26 mm diameter). Engine with stock spark plugs not run well so I want to replace them.
    Thanks!
    1979 Suzuki GS 500e

    #2
    Kruns there is no reason for the stock plugs not to work.
    The plugs may be bad but you should be replacing them with the OEM type

    Are you getting no spark? Intermittent spark?
    IS the spark the same across all plug leads?

    It could be as simple as bad plug caps.

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      #3
      I am getting spark but does not work well at higher rpm. When engine is cold often pour over sparks. Carbs are rejetted and synchronized, placed new ignition points as well..
      1979 Suzuki GS 500e

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