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Clutch adjustment

Discussion in 'Norton Commando Motorcycles (Classic)' started by rob carter, Nov 8, 2018.

  1. rob carter

    rob carter

    Joined:
    Aug 29, 2016
    High guys I am new to the mechanics of my commando. I am experiencing problems adjusting the clutch on my 71 750 commando.
    When I pull the clutch lever in,it dosent disengage the clutch.When I adjust the clutch nut and screw it then disengages the kick start.
    I have read the manual and am wondering how much play I have for this adjustment.
    So my question is,from the start what is the procedure in order to adjust the clutch,and can one person do this
    Any feed back would be appreciated
     
  2. Torontonian

    Torontonian

    Joined:
    Dec 28, 2009
    Back off the clutch lever adjuster fully. Loosen the clutch nut. Screw in it's adjuster screw clockwise until it stops moving . Back off anticlockwise the screw about half a full turn. Tighten down the clutch nut. Tighten up clutch lever cable adjuster , leaving a little bit of slack. That's the simple version.
     
  3. toppy

    toppy

    Joined:
    Dec 2, 2012
    Torontonian that is a radical idea you have that there is a "simple version" ;)
     
  4. jsnorton

    jsnorton

    Joined:
    Oct 10, 2018
    As explained above, and remember to lube the cable :)
     
  5. CanukNortonNut

    CanukNortonNut

    Joined:
    Aug 8, 2005
    Rob,
    You will find all the information on clutch adjustment in the shop manual. Engine/ Primary Transmission "C section" at C35. If you are still having clutch disengagement issues then you will have to dig into the clutch basket and look at the clutch plates and pressure plate under the diaphragm spring (these might be stuck together with oil)... see C13. If this is the case, you will need to buy the tool or make one. https://andover-norton.co.uk/en/shop-details/15499 If you own a Norton Commando you should have this tool in your toolbox.
    Good luck.
    Cheers,
    Thomas
     
  6. 1up3down

    1up3down

    Joined:
    Jan 12, 2011
    Back off the clutch lever adjuster fully. Loosen the clutch nut. Screw in it's adjuster screw clockwise until it stops moving . Back off anticlockwise the screw about half a full turn. Tighten down the clutch nut. Tighten up clutch lever cable adjuster , leaving a little bit of slack. That's the simple version.
    ------------------------

    perfect answer, but if this does not seem to work you may have the cable lifting arm inside the outer gearbox shell in a down or stuck position to begin with


    - is there someone where you live who could come over to your house and help you set the clutch?
    If not, maybe getting one of us members on the phone with you guiding the process could resolve this?
     
  7. CanukNortonNut

    CanukNortonNut

    Joined:
    Aug 8, 2005
    Good call on the 060715 clutch operating lever 1up. ;) Something to check. make sure it is pulled up and in its proper position. It could have dropped down without a certain amount of tension from the cable. If so you will not have the proper cable throw or movement on the push rod.
    cheers,
    Thomas
     
  8. Tornado

    Tornado VIP MEMBER

    Joined:
    Dec 5, 2017
    OP mentioned unable to disengage clutch...if this is all the time, then yes, need to get adjustment as described above. If having trouble while riding to disengage while shifting, could be clutch plates sticking. I experienced this recently and taking apart the clutch plates, throughly decreasing using oven cleaner completely solve the issue. Note my primary was also collecting oil from the crankcase due to failed crank seal....as evidenced by loads of oil being thrown out the drive sprocket opening and all over rear end of bike.
    The clutch plate clean should become part of regular maintenance so get a tool made up for this fairly easy job. The ABS plastic end cap with suitable bolt through it seems like a most excellent solution for the tool.
     
  9. gortnipper

    gortnipper VIP MEMBER

    Joined:
    Nov 11, 2013
  10. rob carter

    rob carter

    Joined:
    Aug 29, 2016
    Thanks for all your info guys.
    I have been trying the clutch on the centre stand,maybe if i try it off the stand it will be ok.
    The feed back about the clutch plates is great.I have adjusted everything in the manual and will give it a go.
    i will keep you posted Cheers Rob