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Madass140 Single Throttle Cable Amal Kit

Discussion in 'Norton Commando Motorcycles (Classic)' started by swooshdave, Jul 22, 2019.

  1. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    im not sure how many of you have bought these but I just installed it last night and it’s beautiful. I can’t tune it yet but I can’t wait to fiddle with it.

    [​IMG]

    Despite the instructions being succinct even I managed to get them on just fine. I do have the stop nuts on the cable wrong in the above picture.

    And as you can guess I shot video of the process.

    Does anyone have any other tips or tricks with their set up? The instructions called to use some forceps to get the needle into the slide. I’ve always just hooked the spring over the top of the slide and dropped the needle in. With the lighter springs this was a breeze.

    I’ll update this thread but add your notes.
     
  2. acotrel

    acotrel

    Joined:
    Jun 30, 2012
    I'd fit that to my bike simply to make it look better. It is like the conical tacho on a Manx - real racing stuff.
     
  3. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    The sad thing is that I can't bring myself to spend the $6ea for the plugs for the choke holes so I just tape them over. $100+ for the kit, no problem! I have weird priorities.
     
  4. cyclegeezer

    cyclegeezer

    Joined:
    Jul 15, 2010
    I do everything but install the spring, then snap the spring end over the cable at the carb top and essentially screw it on.
     
  5. gortnipper

    gortnipper VIP MEMBER

    Joined:
    Nov 11, 2013
    Just squirt some silicone RTV in the holes and smooth out both sides so it is nice and clean and fills all the threads.
     
  6. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Good tip. So far the tape has worked.
     
  7. joe czech

    joe czech

    Joined:
    Feb 21, 2019
    I bought that Madass140 setup for my 74 Mk2 and sprung the $6 for the choke hole plugs. remember, doesn't cost any more to go first class - you just can't go as far - :D
     
  8. olympus

    olympus

    Joined:
    Aug 5, 2017
    Mine is fitted and ready to be set up with vacuum gauges once she's running in the new year.... the only mod I have made is to replace the Philips head top cap screws into stainless cap head screws.... well pleased how it looks
     
  9. maylar

    maylar VIP MEMBER

    Joined:
    May 13, 2007
    Where do I get me one?
     
  10. Onder

    Onder

    Joined:
    May 11, 2010
    PM madass.
     
  11. acadian

    acadian VIP MEMBER

    Joined:
    Mar 5, 2010
    It's a great upgrade, just be sure to do a preliminary sync of the throttle cables with the idle adjusters on the carb completely bottomed out, and the brass thumb adjuster can be quite snug, I find it easier to turn with the throttle slightly open
     
  12. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Bottomed out? Do you mean screw them all the way in?

    And yes the brass adjuster takes a bit to turn. Quality tolerances!
     
  13. acadian

    acadian VIP MEMBER

    Joined:
    Mar 5, 2010
    no, I mean with the slides bottomed out, the (7mm I think) acorn nuts that clip into the gantry arms can then be tweaked to perfectly sync the cables
     
  14. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Thank you for the clarification. Yes, I’ve backed the throttle stops (idle adjusters) out per the instructions. I think Don said one full turn but mine took more.
     
  15. olympus

    olympus

    Joined:
    Aug 5, 2017
    I backed mine close to two turns.... not sure if it's because both new premiers fitted.
    It does take a bit of setting up getting the piano wire set correctly with the new throttle stop in the mid position. To allow a good range of adjustment.
    I fist balances then using a 2 mm drill under both slides
     
  16. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    [​IMG]

    What I ended up doing is unscrewing the throttle (slide) stop screws until they were flush with the body of the carb.

    The other thing I had to do is move the throttle cable end to the second slot. Now I could get the proper slack in the cable.

    And lastly I synced the slides. I have a video (duh) that I'll upload soon (it's on Facebook already). Nothing like watching the bolt twitch at 120 fps slo-mo! Riveting!
     
  17. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    For those of you who've had this set up for a while have the cables worn out the silicone tubes you put in the carb tops? I put some silicone lube on the cable.
     
  18. maylar

    maylar VIP MEMBER

    Joined:
    May 13, 2007
    Since you've (ahem) blanked off the choke cable hole, I assume that it's still possible to use a choke with this contraption? My 850 likes the choke and I won't delete it.
     
    Gadge likes this.
  19. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    No reason why you couldn’t.
     
  20. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009


    You may want to have some coffee before watching this fascinating video.

    Like a whole pot.
     

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