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After a short five mile run the plugs were as per the attached photo. The insulator was orange and the ground electrode had a distinct green tinge. Never seen anything like it before. Any ideas what it might mean?
Thanks
What bike?
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Looking at your earth…
Looking at your earth electrode the motor does not appear to have reached full temperature ,so the plugs look good if running cold. Not oily or very rich.
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The bike rode well.. I was…
The bike rode well.. I was just curious about the colour.. I'll take it for a longer ride and have another look.. i only took it out to get it warm for a compression test as i've just had the head off to attend to an oil leak and wanted to check. thanks for your comments..
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Harder to read plug colour with modern petrol. What bike and what petrol? Also 5 miles isn't much of a run to tell much. They don't look awful so I'd ride it further and look. I presume it rides ok?