Exhaust Turning Black

By Mark DiPietro

Question for Fix My Hog I have a FHLXS 2014 stage 4. I love the Vance and Hines 450 pipes, but the left exhaust is black all the time. I was told by Harley that was normal for these mufflers. Is this true?

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Fix My Hog Answers Really very common. Usually nothing to be overly concerned with. If your spark plugs look good, we suggest not wasting too much time pondering it. If, however, your plugs are somewhat “sooty”; you may be tuned slightly rich.

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2 Responses to “Exhaust Turning Black”

  1. Tom Crescuillo

    Does the front wheel on a 2016 street glide (non ABS) have a right and left side? The bearing recess is different from one side to the other.

  2. embree

    It's running Rich