The other day it did happen after my son was riding it for a while. I pulled the plug last night and it has a nice grey color to it, not rich, maybe a little light colored. Today it ran fine for a good hour with no problems..I have no idea what is going on. I am going to take the cab apart and clean it this weekend. I have done a lot of carb work...mostly 2 strokes and I am not that familiar with a a fuel enrichment valve, it is not even showing up on the wire diagram...Where does it get the power from?
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