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Spark Plug Color

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I'm just wondering, what color is the spark plug supposed to be when the carb is jetted correctly? Ive heard it should be white with a dark grey ring at the bottom of the insulator, and other places ive heard it should sort of a light tan color? :eek::applause:🙂

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tuning by spark plug color with modern fuels doesnt tell you much.

in general,the plug should little if any color.

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