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I've been running this single cyl scooter with this plug to about 30K KM (~19K miles). Replaced it today and it seems a bit dark. Is the engine's mixutre too rich?enter image description here enter image description here enter image description here enter image description here

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BlackNinja
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1 Answers1

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The fotos differ each in color. Try to capture the plug in natural light, without flash.

Unless the colors in the foto are totally wrong, there can't be much wrong with the engine. Seems to be a nice brown tip. The insulator is also brown, but not too much. No debris or other oddities.

Martin
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