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Z-Plates

Discussion in 'Norton Commando Motorcycles (Classic)' started by Cowboy Don, Oct 11, 2012.

  1. Cowboy Don

    Cowboy Don

    Joined:
    Aug 7, 2010
    Hey Guys,

    On a 71, what is the difference between the l/h & r/h z-plates, aside from the zener diode mount?
     
  2. OldBalz

    OldBalz

    Joined:
    Dec 6, 2011


    Well, i don't quite understand your question.....but they won't interchange and they are well...side-specific.
     
  3. hobot

    hobot

    Joined:
    Oct 19, 2005
    L & H hand mirror images of each other that could be mounted oppositely/inside out, if Zener hole not used on RH.
     
  4. daveparry

    daveparry

    Joined:
    Jul 4, 2009
    I'm not sure whether the insides are polished? so long since I had mine off!
     
  5. hobot

    hobot

    Joined:
    Oct 19, 2005
    After a couple years the insides are as polished as the outsides I find. Hand tedius to get in the tight spots but Oh La La when ya do, for as long as it lasts.
     
  6. OldBalz

    OldBalz

    Joined:
    Dec 6, 2011

    The inside of the Z-Plates on my 1973 850 MK1 are not polished from the factory, and I just had them off less than a month ago...
     
  7. maylar

    maylar VIP MEMBER

    Joined:
    May 13, 2007
    The zener mounting location on the inside of the RH plate is machined flat for optimum heat transfer. It'd look funky if installed on the left, but otherwise I believe they interchange.

    That's why I had mine chromed.
     
  8. bwolfie

    bwolfie VIP MEMBER

    Joined:
    Sep 21, 2010
    Sorry but :( Chrome is evil and has little to no place on a norton. The aluminum Norton used polishes up very easily. And looks great, even when it starts to get a patina.
     
  9. Cowboy Don

    Cowboy Don

    Joined:
    Aug 7, 2010
    Oldbalz,

    Sorry, my question is are they interchangeable? I have a couple spare r/h side plates and want to know if I can use one on the l/h of the bike.
     
  10. DogT

    DogT VIP MEMBER

    Joined:
    Jan 20, 2009
    If you don't mind that flat spot for the zener showing you can use them.

    Dave
    69S
     
  11. Cowboy Don

    Cowboy Don

    Joined:
    Aug 7, 2010
    Cool, thanks DogT. Seeing as they're spares, a bit of experimental drillin 'n' grindin would make them cosmetically identical.
     
  12. Onder

    Onder

    Joined:
    May 11, 2010
    Had at mine not too long ago, the inside will need a lot of work
    as they are lumpy and not smooth at all. Cheaper and easier to
    just get another pair. They are common.
    Chrome is for Harley. Endless buffing is for us.
    Pick up the cross and carry it mate. :)
     

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