hows my plug look

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What nmurph said. What you see in the picture tells you almost nothing.

OTOH, if the insulator, after some full-load running, is white to light beige, with a dark band next to the metal plug body, the plug is fine, for the existing engine conditions and mode of operation.

If the plug is clean & white all the way to the body, the plug is too hot. Had this happen recently with a PP4218. Went a step colder with a reputable plug (NGK). Maybe needs still colder. This is more about the plug than other stuff. A fouled plug is cheap. A molten piston crown, not.

If you adjust carb by a tach, then IMHO you're the same sort of idiots that felt compelled to totally bugger the adjustment of the carb on my 40 cc RedMax.

A tach is a good way to tune a tool, it also gives you an idea of what to listen for, I use plug colour to check if I do tune by ear, but I prefer a tach when pushing the tool to its max rpm
 
plug looks right on the money to me. But I am surprised with it being so hot and humid down there you guys must have to lean them out quite a bit. Nothing wrong with checking your plug color though it's a lot easier to do by ear.
 

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