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Amal Premiers

Discussion in 'Norton Commando Motorcycles (Classic)' started by Dellis, Mar 13, 2019.

  1. Dellis

    Dellis VIP MEMBER

    Joined:
    Jul 22, 2018
    I’ve had an ongoing issue with my left hand carb float sticking and the right hand carb being slow to tickle. I’ve stripped and rebuilt them a couple of times, they’ve got a bit of wear, the sticky float won’t go away and it always seems to stick at awkward moments so I’ve bitten the bullet and ordered a set of Premiers. I’m hoping for good things. Updates to follow.

    Dave
     
  2. Stillreel

    Stillreel

    Joined:
    Sep 30, 2011
    You've made a wise decision. I replaced my Amals last year and was rewarded with easy starts and better performance.
     
  3. jbruney

    jbruney

    Joined:
    Jan 5, 2019
    Good luck. My left tickler has always been sticky whilst the right is a gusher. I can't imagine having different carbs on my bike unless the weather is cold. They don't like cold.
    I'd like to hear how your transition goes though.
     
  4. Dellis

    Dellis VIP MEMBER

    Joined:
    Jul 22, 2018
    Ordered them this evening from RGM so they should be here on Friday, I’m away at the weekend so will be next week before I get the spanners out.

    Dave
     
  5. cliffa

    cliffa

    Joined:
    May 26, 2013
    Dave, one tip. When you get them remove the pilot jets and adjusters and make sure there is no swarf in the circuits.

    Cheers,

    cliffa.
     
    Tigernut likes this.
  6. cliffa

    cliffa

    Joined:
    May 26, 2013
    Oh, and a lot of folks are now using 19 pilot jets as opposed to what were normally supplied (17's). Your carbs may come with them though.

    If you want to you can also remove the unused tickler castings on the inside of each carb, which will enable you to get a straight run onto the inner retaining nuts with a socket.
     
  7. MexicoMike

    MexicoMike

    Joined:
    Jan 31, 2010
    You will like 'em! Mine came with #19 pilot jets.
     
  8. Pete Mahone

    Pete Mahone VIP MEMBER

    Joined:
    Oct 20, 2017
    Hi Dellis, what year and model is your bike and what size main jets are you getting? I’ve been told that 200 is standard for an 850 but I’ve read in other posts on this forum that most use a 260?
     
  9. olympus

    olympus

    Joined:
    Aug 5, 2017
    Speak with RGM they will jet to your requirement at no additional cost
     
  10. Dellis

    Dellis VIP MEMBER

    Joined:
    Jul 22, 2018
    Cliffa, thanks for the tips.

    Dave
     
  11. Dellis

    Dellis VIP MEMBER

    Joined:
    Jul 22, 2018
    Pete, mine is a ‘74 mk2a with a ham can filter and open pea shooters and I’m on a 260 main.

    Dave
     
  12. Dellis

    Dellis VIP MEMBER

    Joined:
    Jul 22, 2018
    Olympus, I’ve ordered them from RGM and I’ve already asked them to fit 260 mains.

    Dave
     
  13. Dommie Nator

    Dommie Nator VIP MEMBER

    Joined:
    Apr 2, 2013
    I second that, I fitted them straight away but had to take them off again. One still had swarf in.
     
  14. gortnipper

    gortnipper VIP MEMBER

    Joined:
    Nov 11, 2013
    Have the 932/36 carbs always come with a 19 pilot jet?

    If not, does anyone know when that changed?
     
  15. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    That is SO annoying is t it? A ‘precision’ instrument like that, with swarf in it!

    That doesn’t happen when you buy Keihin’s !
     
  16. gortnipper

    gortnipper VIP MEMBER

    Joined:
    Nov 11, 2013
    Serious or sarcasm? (Having no experience with Keihins)

    But my premiers had no swarf...
     
  17. Dellis

    Dellis VIP MEMBER

    Joined:
    Jul 22, 2018
    I’ll give a ‘swart’ update when i’ve had them apart.

    Dave
     
  18. HoveToo

    HoveToo

    Joined:
    Jan 1, 2012
    The other check that is worthwhile is the float height. I finally checked mine after I fitted new Amals and noticed that one carb tickled easily and the other didn't. Now of course I have to be a bit less generous with the flooding to ensure the first kick starting. There are threads on the forum discussing float heights and one links to a US site that has some good pictures but I cannot remember which one. I scribed a line 1mm down from the front edge of the float chamber and set the heights to that.
     
  19. Pete Mahone

    Pete Mahone VIP MEMBER

    Joined:
    Oct 20, 2017
    Thanks Dave and Olympus, the only reason I ask is because I have ordered a pair of premiers from Classic Bike Spares in Aus, and was told that the standard main jet is a 200. When I took the original carbs off the bike, they also had 200 mains installed (I’ve only had the bike for a short while) so I’m wondering if the fuel here is different. I’m using 95 Ron fuel ( no ethanol) the bike is a stock standard Mark3 with a ham can and points but I intend to change to a Pazon Altair soon. I live at sea level in Brisbane.
    Cheers,
    Pete.
     
  20. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    No sarcasm. Just an admirer of Japanese quality control!

    But to be fair, the one set of Premiers I have bought were swarf free.
     

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