2008 Ultra Vibration

Discussion in 'Touring Models' started by alcurry2006, Aug 12, 2009.

  1. alcurry2006

    alcurry2006 Member

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    I have a 2008 Ultra with about 5000 mi. Recently I installed a set of V&H Big Shot Duels. It seems like the vibration started on the test ride right after the install. Does anyone know if the new pipes could be causing this vibration or do I need to look for other issues?
     
  2. tinsnips

    tinsnips Banned

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    i noticed the same thing on my 08 ultra as well and just figure its part of the price you pay when you change the bike (EDIT) i dont really know why either

    Please read this...
    [note]
    A Friendly Reminder - Harley Davidson Community
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    Last edited by a moderator: Aug 13, 2009
  3. alcurry2006

    alcurry2006 Member

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    I think that is the pipes causing the vibration and I wasn't to worried about it until I read the post about crankshaft run out on 96 Twin Cams.
     
  4. Rod Stewart

    Rod Stewart Active Member

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    Does the vibration frequency vary with engine RPM, or with bike speed? That will tell the story. You may have thrown a wheel balance weight.

    Rod
     
  5. alcurry2006

    alcurry2006 Member

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    The Vibration changes with the engine RPM. I thought about the wheel balance thing and have pulled in the clutch at different speeds to see if it is coming from the road but as the engine slows back to idle the vibration slows also even with bike maintaining close to the same speed.
     
  6. glider

    glider Veteran Member

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  7. Joe2007ultra

    Joe2007ultra Active Member

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    How bad is this crank runout issue?
     
  8. glider

    glider Veteran Member

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    More noted in the 07 bikes but the tolerances have been tightened up a bit in the later years. Not to say it doesn't happen without a keyed or pinned crank.
     
  9. alcurry2006

    alcurry2006 Member

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    I haven't had the runout checked yet. Does the 08 have a keyed or pinned crank?
     
  10. glider

    glider Veteran Member

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    Pressed, no key or pinned.:( El cheapo construction.