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Clutch "judder"

Discussion in 'Norton Motorcycles (Modern)' started by Kid Thunder, Dec 25, 2018.

  1. Kid Thunder

    Kid Thunder

    Joined:
    Sep 30, 2018
    What is the cause of clutch "judder" on our bikes(2015 961SE). I noticed it right from when I 1st road it(Came 552 miles on it). Seems like others have commented on it.
     
  2. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    It has to do with the split anti backlash , the the clutch spring cush drive and clutch in general . There may be some deterioration of your rear wheel cush rubbers which were too soft. Check those asap ! and get them replaced with the latest harder cush rubbers from Norton. You have to remove the rear wheel , but its no big deal . You may have read that the anti backlash split gear spring may be stretched or not tensioned properly. There is no way to check and set this without disassembly. If it helps , my bike a Nov 2014 build was not stretched. We replaced my spring while we were there but it was ok. So, in my view there is no need to rush into this now. Get the Richard-7 tools when you get a chance. You will want the clutch jam , the spring setting tool and clutch lock tool. Download the manuals and read about it first. But, the soft cush rubbers in the rear wheel lead to damage of the rear hub and also exagerate the judder .
     
    Last edited: Dec 26, 2018
    richard-7 likes this.
  3. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Kid , When was your bike built month/year ? Look on the steering neck or if you have the original Norton certificate .
     
  4. Kid Thunder

    Kid Thunder

    Joined:
    Sep 30, 2018
    06/2015. Ok. I will check the rear cush drive rubbers in the spring. I'll have to purchase them from AF1. I do all my business with them cause I own an Aprilia. EBR & now the Norton. Will Norton cover the cost of this item?
    Call me Don... AKA Kid Thunder... AKA Crash.
     
    Last edited: Dec 26, 2018
  5. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Crash, so you’re bike is 3 1/2 years old, it’ll be nearly 4 by the time you check those rubbers... and you expect Norton to pay for them...?
     
  6. BLIGHTYBRIT/SF

    BLIGHTYBRIT/SF VIP MEMBER

    Joined:
    Feb 28, 2016
    There quite inexpensive serviceable items,mine changed at 9,500 miles
     
  7. Kid Thunder

    Kid Thunder

    Joined:
    Sep 30, 2018
    Uhh, yeah!!! lol Bought it with 552 miles this year & only had a chance to put on about 600 more.
    Sure if it's a design mistake it should be covered in my book!
     
  8. Kid Thunder

    Kid Thunder

    Joined:
    Sep 30, 2018
    I'm in the states & it takes a long time to get parts if my Norton dealer(AF1)doesn't have them in stock. It takes 4-6 weeks to get things. It's not the money.
     
    TonyA and Britfan60 like this.
  9. Raphi

    Raphi

    Joined:
    Aug 17, 2015
    Check if you can spot pieces of rubber coming from your rear wheel hub. It is easy to check for some backlash between sprocket and wheel when rear wheel is freely movable. If there is a remarkable backlash, the rubbers are done!
    If not, rubbers are okay and you may have to check the clutch...
    Raphi
     
    Last edited: Dec 30, 2018
    contours likes this.
  10. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    I have gotten them from AF1 already . They may be in stock
     
  11. Kid Thunder

    Kid Thunder

    Joined:
    Sep 30, 2018
    Thanks TonyA but they not available. Must be ordered from Norton. 4-6 weeks. Lucky the weather here in RI sucks!!!
     
  12. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    You fellas really think the cush grommets are shot after only 600 miles? That would be a first.
     
  13. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    No, I don’t.

    Not unless the chain has been tightened like a bow string....
     
  14. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    No not shot . Just too soft .
     
  15. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Got 7k out of mine, a 2013, and even when they were shot, there was no judder. Still glad they upgraded them
     
  16. Clive

    Clive VIP MEMBER

    Joined:
    Jun 9, 2017
    My cush rubbers were replaced during some rear wheel warranty work when the bike was around 8 months old. Not totally shot but well worn. Was charged as 'consumables' - can't complain as they are not expensive and they've done me a lot of favours in the past. And I do enjoy seeing traffic disappearing behind me at the traffic light drag races...;)
     
  17. contours

    contours VIP MEMBER

    Joined:
    Jan 1, 2012
    Raphi, have you replaced the rubbers on your BST wheel more than once (or even once) yet?
     
  18. Raphi

    Raphi

    Joined:
    Aug 17, 2015
    Never! I Did about 5‘000 miles with them... Still good so far!
     
  19. bushman

    bushman

    Joined:
    Jan 27, 2015
    Clutch plates - need a clean and relube, sounds like it has spent a good part of its life sitting. When I had 20/50 in the clutch the bike shuddered on take off - when I removed the clutch, the plates were blotchy and dry in places. Cleaned, lubed, thoroughly coated the plates with 10W40 oil and it has been great for 500miles. I put 10W40 Amsoil in the primary. I had tried 20W50 to try and quieten down the mechanical noises.. but that is another storey.
     
    Raphi likes this.
  20. Kid Thunder

    Kid Thunder

    Joined:
    Sep 30, 2018
    Sounds like a thing I will try. Thanks