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    need help

    i need a suggestion on whats wrong when one spark plug burns coal black. how can i fix this?

    #2
    i would post this in the tech section, but it sounds like either you have a bad plug wire or you need to clean and adjust your carbs. If you do a search about these two topics you will find a load of info on both.

    For future referance it helps to post more detailed info like what type of bike it is and any type of maintanace history the bike has had.
    78 GS1000 Yosh replica racer project
    82 Kat 1000 Project
    05 CRF450x
    10 990 ADV-R The big dirt bike

    P.S I don't check PM to often, email me if you need me.

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      #3
      Originally posted by 4504 View Post
      i need a suggestion on whats wrong when one spark plug burns coal black. how can i fix this?


      Buy a box of spark plugs, and just change it out after it gets black.

      Just joking.

      It would be easier to help if there were some details in your post.




      Could be a jetting problem, could be a petcock problem off the top of my head.

      What year and size of bike?

      Which plug is turning black?

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