strange question?

Discussion in 'Touring Models' started by poppi, Nov 12, 2012.

  1. poppi

    poppi Member

    13
    0
    0
    2010 Ultra Classic. I have been experiencing a strange vibration and "tugging" like sensation that is felt in the rear and the footboards. It isn't constant but intermittent . It usually occurs between 2400 and 2900 rpm. Past that it stops. It feels like going over bridge grating or very rough pavement. It happens in brief intervals. Also feels like tugging on the antennas or the rea end. I removed the fllags I had attached, and then the antennas as well. No change. It doesn't affect handling nor are there any noises. It just feels weird. My frend says I'm crazy.. Anyone have any experience or ideas? Thanks
     
  2. Dr. Dolittle

    Dr. Dolittle Experienced Member Staff Member Moderator Contributor

    6,399
    108
    24
    2400-2900 RPM in all gears?

    All kinds of road surfaces?

    Travelling straight? Curves? Accelerating?

    What happens if you immediately disengage the clutch as soon as you feel this sensation?

    Tire pressure?

    Wheel balance?

    Sorry - just a bunch of random thoughts but maybe one of them will jog someone else's memory.
     
  3. hogcowboy

    hogcowboy Active Member

    135
    0
    2
    I'd get it up in the air and check to see if the wheel bearings aren't dragging. My 85 EG used to eat bearings and that's about what you describe it felt like although I'd say it was more speed oriented than RPM.
     
  4. poppi

    poppi Member

    13
    0
    0
    All gears
    All surfaces
    straight or curves
    Clutch engaged or disengaged
    I check tire pressure the night before each ride also shock pressure.
    I don't know about wheel balance. Bike has 8000 miles on it. Had the 5000 service done by a very reputable indy. Bike is completely stock. It has been going on for some time now. I initially noticed it after I attached flags. It just seemed to have increased lately. Doesn't matter if it is windy or calm. Maybe I am crazy:s Thanks for the reply Dr. Dolittle
     
  5. ironmark

    ironmark Junior Member

    754
    28
    4
    I would look into the rear wheel bearings and the rear pulley bearing as being the source of your problem.
     
  6. lordharold

    lordharold Active Member

    191
    0
    2
    while you are checking the rear bearings check your drive belt tension
     
  7. r_k_dragon

    r_k_dragon Active Member

    270
    0
    4
    So if you take the flags off, do you still have the "tugging" in all gears at that same rpm range? The rpms are the only constant and that would lead me to suspect the engine area more than the running gear. Just my $0.02 worth.
     
  8. HDDon

    HDDon Experienced Member Contributor Retired Moderators

    5,456
    133
    196
    Does your bike have the cush drive system on the rear wheel? There are some Post on the forum where the bolts have backed off and some have even sheared the heads off. Just a thought.
     
  9. Dr. Dolittle

    Dr. Dolittle Experienced Member Staff Member Moderator Contributor

    6,399
    108
    24
    Do you have a trusted friend or good mechanic that could ride your bike and verify if you're crazy or not?
     
  10. Redfish-Joe

    Redfish-Joe Senior Member

    2,307
    48
    10
    Just for the heck of it check your swing arm bolts. Mine were loose @ 11k on my RGC. Bike felt loose under me. What the hey, can't hurt.