spark plug question

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01-08-2004, 11:16 PM

snysny

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spark plug question

I checked my plug because it was missing out in high rpms and it is black not burnt. Should i change the plug. or try to clean it up. OR could it be something else

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01-08-2004, 11:27 PM

Yamaha660R

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spark plug question

Seems like your jetting is off. You are running too rich.

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01-08-2004, 11:45 PM

snysny

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spark plug question

Will it lean out when it gets warmer

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