R100 clutch won't release

Discussion in 'Old's Cool' started by JohnTM, Oct 26, 2005.

  1. JohnTM

    JohnTM I suck toes

    Joined:
    Oct 20, 2001
    Oddometer:
    29,206
    Location:
    Cornersville, TN
    A friend has a clutch on a R100 that won't release. New plate, new spring, new rods, crank isn't shifted back, no marks on the flywheel. Any thoughts?
    #1
  2. norton73

    norton73 drinkin'

    Joined:
    Dec 20, 2003
    Oddometer:
    8,633
    Location:
    Beautiful Downtown Springville, Alabama
    Clutch cable length?

    Did he just install the new clutch, or was it done a while ago?
    Did he check the splines on the input shaft? Rust or wear could make the clutch disc hang up.
    #2
  3. JohnTM

    JohnTM I suck toes

    Joined:
    Oct 20, 2001
    Oddometer:
    29,206
    Location:
    Cornersville, TN
    He's replaced just about everything. Maybe he got the wrong plate and it is thicker? Is there a difference between models?
    #3
  4. norton73

    norton73 drinkin'

    Joined:
    Dec 20, 2003
    Oddometer:
    8,633
    Location:
    Beautiful Downtown Springville, Alabama
    What year is the bike?

    Looking at my Clymer manual, page 223, clutch specs;

    Friction plate;

    R50/5, R60/5, R60/6 R60/7,
    1979-1980 R65 Min thickness 2.4 mm

    R75/5, R75/6, R75/7, R80/7 2.6 mm

    All 900cc, 1977-1980 1000cc 2.8 mm

    1981 - up 4.5 mm


    Certainly looks like if it's a pre-81 model, a later model friction plate could be a problem.
    #4