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Humming noise over 10 mph

Discussion in 'XJ Technical Chat' started by Base430, Mar 30, 2015.

  1. Base430

    Base430 Member

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    Hello everyone,

    At the end of last year my bike started to make a humming noise over 10 mph. I changed out the front wheel bearings. This is the first time I drove it since last year and the noise is still there. If I slow down from speed and go below 5 mph the noise goes away but as I speed up the noise will come back. It does change under front end load. Which makes me believe that it is the front end.

    I just rebuilt the front end and replace the head bearings with the tapered bearings.

    Any help will be greatly appreciated thank you.
     
    Base430, Mar 30, 2015
    #1
  2. Polock

    Polock Well-Known Member

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    it hums because it doesn't know the words...........sorry. that's a old one :)
    is your tire "cupped" ? saw tooth ware? change the air pressure, see if it changes the tune
     
    Polock, Mar 30, 2015
    #2
  3. lostboy

    lostboy Well-Known Member

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    Disconnect the speedo cable and go for a short ride and see if the noise goes away.
     
    lostboy, Mar 30, 2015
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  4. Base430

    Base430 Member

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    The tires have less than 300 miles on them and tire pressure no change.

    I will try the speedo cable.
     
    Base430, Mar 31, 2015
    #4
  5. Base430

    Base430 Member

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    So I removed the speedo cable and the noise is gone. Is it something that I can service or should I replace it?
     
    Base430, Apr 2, 2015
    #5
  6. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    The cable cand be pulled from the sheathing, cleaned, and then greased. Honestly I'd just replace it with a new one since it's probably the original, has likely been in need of lubrication for some time (therefore worn and mroe likely to break) and only costs $35 or so.
     
    k-moe, Apr 2, 2015
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