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  1. #1

    03 gpr 1300 ? about spark plug

    The last spark plug in the back is grey and looks like it has clunks of stuff on it what is it and can I fix it the motor runs ok yet


  2. #2
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    Quote Originally Posted by stealthbomber87 View Post
    The last spark plug in the back is grey and looks like it has clunks of stuff on it what is it and can I fix it the motor runs ok yet
    grey is not good do a compression test on it.

  3. #3
    Quote Originally Posted by stealthbomber87 View Post
    The last spark plug in the back is grey and looks like it has clunks of stuff on it what is it and can I fix it the motor runs ok yet
    Sounds like metal pieces. Better check compression. Pull the head and get a better look. Don't run it till you figure out what it is.

  4. #4
    Avi8tor's Avatar
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    Quote Originally Posted by stealthbomber87 View Post
    The last spark plug in the back is grey and looks like it has clunks of stuff on it what is it and can I fix it the motor runs ok yet
    Mine was grey when burned a piston. The chunks of stuff on it is a bad sign. With 10 - 12-14 mm sockets and phillips head screwdriver, you can have the head off in a few minutes.

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