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White powder on exhast valves?? jetting??

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I took my header off the other day to polish it up, it was caked with dirt. While doing this I noticed the exhaust port and valves were porcelain white and powdery looking, is this a result of bad jetting??? What am i looking at here boys??

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your bike is running way lean. white powdery stuff is the result of the engine running too hot do to the lack of fuel :lol:

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are u running vp fuel

Very good question. I run the VP U4.2 and its jetted perfectly and its all white to a very light gray at the exhaust tip. :lol:

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