Vibration

Discussion in 'Thunderbird' started by Stevie, Jul 30, 2018.

  1. Stevie

    Stevie Member

    Jan 9, 2017
    49
    18
    Cincinnati OH
    #1 Stevie, Jul 30, 2018
    2014 Thunderbird Lt noticable vibration coming from the engine around 2500 rpm, up through handlebars. On a long ride, my hands start to feel numb. Any ideas or thoughts?
     
  2. Retired Phil

    Retired Phil Well-Known Member

    Jun 22, 2017
    212
    93
    San Rafael
    #2 Retired Phil, Jul 30, 2018
    loose motor mounts?
     
  3. Stevie

    Stevie Member

    Jan 9, 2017
    49
    18
    Cincinnati OH
    #3 Stevie, Jul 30, 2018
    Everything is tight, thanks though
     
  4. KevinK

    KevinK Member

    Sep 26, 2017
    39
    13
    Timberlake, NC USA
    #4 KevinK, Jul 31, 2018
    I think this motor design has a balance shaft, could this be an internal engine issue with the balance shaft?
     
  5. thebiglad

    thebiglad Old fart, still riding !

    Sep 25, 2013
    5,066
    1,000
    Central France
    #5 thebiglad, Jul 31, 2018
    What about cylinder balance - maybe they need balancing ?
     
  6. Stevie

    Stevie Member

    Jan 9, 2017
    49
    18
    Cincinnati OH
    #6 Stevie, Aug 1, 2018
    Thanks for all the info...this only happens around 2500-3000 rpms. I guess there is going to have to be some vibration, it is a big twin. I have just read that some guys say how smooth the lt and commander are.
     
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