Spark plug looks carbonized

I tried doing a "plug chop" as recommended in Fred's guide, and the plug looks dark and has some black stuff stuck to it (looks like charcoal). The plug is fairly new - less than 60 miles on it.

The moped does not go full speed (only 22 mph), and it gets terrible mileage (40 mi / gal)

Spark plug looks carbonized

Sounds like you're running rich. Try using a smaller jet, and clean the carb while you're at it.

Re: Spark plug looks carbonized

what mix are you useing?

Re: Spark plug looks carbonized

James Aasman /

It's oil injected

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