Is this normal?
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  1. #1
    Senior Member sibyrnes's Avatar
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    Is this normal?

    My TW exhaust header after 300 miles.
    Exhaust Pipe-2353.jpg
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  2. #2
    Senior Member TW-Brian's Avatar
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    I think there are pills you can take for that!

    (Just kidding, I have no idea what the cause of that is. Interesting effect though.)

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  3. #3
    Member brandonjohnson33's Avatar
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    Never seen that before. Mine has 4800 miles and is discolored where it enters the head so I just wrapped it.
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  5. #4
    Senior Member Badgerflorida's Avatar
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    Weird effect, never saw that before. Also forgot exhaust fasteners were all once new and shiny.
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  6. #5
    Senior Member Swingarm's Avatar
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    Probably the first step of it's journey to rusted and mud stained. Keep posting pics as it progresses. "Life of a header pipe" thread.
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  7. #6
    Senior Member fishguy's Avatar
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    I thought all exhaust pipes looked bad. I bet this is from mud droplets or just water hitting the hot pipe and causing some kind of havoc. You could:
    1) Ignore it (my choice).
    2) Wrap it. Looks cool.
    3) Paint it, again.
    4) Wire wheel and then paint it.
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  8. #7
    Ken
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    Senior Member Ken's Avatar
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    They probably didn't cure it correctly. Wire brush it, 1000 degree heat paint. Follow the directions for curing. I never used an oven. I just run it about 10 minutes then 30 then an hour with wait times in between. Nice little rides. It all falls off again in a few years but do over. It keeps it protected. I paint mine on the bike. I just use cardboard or newspaper to shield for overspray.

  9. #8
    Senior Member scotti158's Avatar
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    Get some mud on it and forget about it.
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  10. #9
    Senior Member sibyrnes's Avatar
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    So no one thinks that it could be an indication of an engine running too lean? I'm not that concerned about the cosmetics of it.
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  11. #10
    Senior Member Dryden-Tdub's Avatar
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    Quote Originally Posted by sibyrnes View Post
    So no one thinks that it could be an indication of an engine running too lean? I'm not that concerned about the cosmetics of it.
    Unless you have adjusted the pilot screw I guarantee it is running lean/hot. Plenty of info here on making that adjustment.


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