back tire

Discussion in 'Softail Models' started by saintNH, Mar 15, 2011.

  1. saintNH

    saintNH Member

    87
    0
    0
    My bike has been sitting up on my jack all winter and when I started it yesterday the back tire would spin very slowly in neutral, and with the clutch pulled in. I could put my hand on it and with very little pressure it would stop but when I let go it would start again. When I let the clutch out the tire started spinning with barely letting out a fraction of the clutch so I loosened the cable some even though it was adjusted to spec, but that did nothing. I ran it through a few gears on the jack, pumped the clutch a bunch of times thinking that maybe something is stuck from sitting for a while, but it didnt stop in the 20-25mins I had it running. Anybody know what this could be? the strangest part is that it does it even in neutral.
     
  2. saintNH

    saintNH Member

    87
    0
    0
    So if I adjust the clutch this should go away?
    [​IMG]
     
  3. Hoople

    Hoople Account Removed

    7,198
    0
    34
    No, it will always happen. The transmissions are constant mesh and have a ton of parasitic drag. It is nothing to worry about.
     
  4. dbmg

    dbmg Experienced Member

    5,800
    153
    318
    I would be more concerned with leaving bike stationary and running for 20-25 minutes. Wheel moving is normal...
     
  5. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

    4,633
    83
    101
    As pointed out above, this is just parasitic drag. With little resistance on the back wheel, the fluid between the plates in the clutch basket turn the gears in the tranny causing the wheel to turn slowly. As you point out, it is very easy to stop with your hand. If it was a clutch dragging, you would have trouble stopping the tire from turning.

    Not to worry.

    TQ
     
  6. saintNH

    saintNH Member

    87
    0
    0
    Thanks for the help. I had not seen it do that before so I was a little concerned but that explanation makes sense. Thanks again.
    [​IMG]
     
  7. BUBBIE

    BUBBIE Well-Known Member

    4,959
    83
    113
    I'd Like you to read this Above Post again.....

    This is VERY IMPORTANT.... Unless your Have a BIG FAN blowing across the motor and head pipes You are ASKING for problems.. AIR COOLED.. Usually a bike is started and run ONLY long enough to Mount the bike, strap on helmet
    (2 mins MAX.) Then Ride off with the Air Cooled bike.

    I take it easy, no High revving until it has about 10/15 miles on it, then I feel it is warmed up enough to RIDE.

    Just concerned you don't BURN that Motor Up.:D

    signed....BUBBIE
     
  8. saintNH

    saintNH Member

    87
    0
    0
    Got it. Thanks again!
    [​IMG]
     
  9. BUBBIE

    BUBBIE Well-Known Member

    4,959
    83
    113
    That is Some of the CLUNK you hear on a HD before ALL stops when clutch is pulled in to go to LOW, IF you wait with clutch lever pulled in ALL the way against the handle bar for about a count of 5/8 seconds the CLUNK will be gone IN Most bikes that have the Correct clutch and cable setting.
    Cars Usually do the same spinning a tire/wheel thing while on a rack off the ground when engine is Running in Neutral..

    signed....BUBBIE
     
  10. maine-e-axe

    maine-e-axe Junior Member

    732
    28
    1
    It's like an old FREE AIR snowmobile, you must have air MOVING around the fins on the jugs. It's even worse on the bike with no fins on the heads like a 2 stroke.