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Choke lever

Discussion in 'Norton Commando Motorcycles (Classic)' started by Woody850, May 12, 2018.

  1. Woody850

    Woody850

    Joined:
    Sep 30, 2017
    Having fitted the air slides in my new premiers for better cold starting the lever gives me bother in that the screw always slackens off. Fortunatly a coin just does the job to retighten. The friction spring is in place but does not help, either I have a too tight or too loose lever.
    Any ideas? I have considered loctighting the screw but that can't be right.
     
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  2. Triton Thrasher

    Triton Thrasher

    Joined:
    Feb 10, 2009
    A chronic problem with their stupid design.

    I remember people tying the lever in the open position with a rubber cut from an inner tube.

    The other cure is to remove the air slides, of course.
     
  3. kommando

    kommando

    Joined:
    May 7, 2005
    Take the spring out and bend it so its stronger and applies more force but the clearances are not used up, well in the short term anyway until the spring weakens.
     
  4. Woody850

    Woody850

    Joined:
    Sep 30, 2017
    Thanks I'll try that and see if loctight helps.
     
  5. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    The standard ones were rather crap.

    Unfortunately new pattern ones have taken this to another level... they’re much crapper !
     
    concours likes this.
  6. Stephen Hill

    Stephen Hill

    Joined:
    Oct 28, 2009
    Never had a problem on any of my Commandos. Mind you, I tightened the nut up and never use it. I just tickle the carbs.
    Maybe I am missing something. Anybody else use their choke instead of the ticklers?
    Sometimes when the bike is hot, it can be cranky starting. Maybe that is the moment to use a choke?

    Stephen Hill
     
  7. Mr. Rick

    Mr. Rick VIP MEMBER

    Joined:
    Feb 6, 2009
    I use both if cold. Mine warms up a little quicker with half-choke left on for about 20 seconds. Never need it when hot...
     
  8. Woody850

    Woody850

    Joined:
    Sep 30, 2017
    Thats my reason for having them fitted it always starts first kick and me having a wonky right knee start with the left leg on the main stand, works a treat.
     
  9. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    I suspsect your findings are a placebo here Mr Rick.

    My understanding is that the choke only works as a choke when it’s fully deployed.

    Half choke is therefore no choke.

    The only effect of half choke would be to severely inhibit performance above half throttle (as that’s the only time the choke slide would not be hidden by the throttle slide.

    Unless I Issunderstand the principles of how the choke works?
     
  10. Mr. Rick

    Mr. Rick VIP MEMBER

    Joined:
    Feb 6, 2009
    You may be right about the placebo effect. I shd have said that what I actually do is give it full choke to get it started, and then almost immediately back off to half, while using the throttle friction screw to keep it just off the throttle stops. While it's warming up, I can get my jacket, helmet, and gloves on without holding the twistgrip.
    Someday this summer I'll get out my new Harmonizer® carb synch tool, and see if the dance can be simplified somewhat...
     
  11. Torontonian

    Torontonian

    Joined:
    Dec 28, 2009
    Yes keep it tight using a large coin. Congratulations you bought a Norton.
     
  12. Woody850

    Woody850

    Joined:
    Sep 30, 2017
    I think I have found the solution for all who may be plauged. It has been on test for a while to eliminate false conclusions.
    Here goes, I took two pairs of long-nosed pliars and crimped the flat spring which is under the lever in more than one place just enough to allow you to get the screw in again. It might have looked brutal but it now gave a lot of friction, then I fitted the screw with loctight and left it overnight.
    That is now going on for a month and it holds the choke cable in tension. I am very pleased with the result.
    John
     

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