1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

It's a long way to 920 type(rary)

Discussion in 'Norton Commando Motorcycles (Classic)' started by yves norton seeley, Jan 14, 2018.

  1. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    An impressive woman indeed sir. But not only that, all those years she has put up living with an obsessive Norton Nutter as well !
     
  2. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Great report Bruno, thank you.

    How tall are you Bruno? And how was the comfort of the Seeley riding position compared to the featherbed? I’m just trying to understand how much a Seeley might suit me, especially after that fantastic write up!

    Yves, your bike sounds truly fabulous. And it makes me feel very guilty for not getting my 920 progressed more quickly !

    But as Bruno said, you have an evil streak, that is one mean thing to do to a friend !!
     
    Jagbruno and Kvinnhering like this.
  3. Jagbruno

    Jagbruno

    Joined:
    Jan 6, 2014

    Nigel, I am 1m78 or about 5'11".
    The Seeley felt just fine for me. Yves has installed his rear sets about 2" aft and lower from the swing arm pivot. The attitude of his bike seems to be a tad lower on the rear compared to my Featherbed, but mine is notoriously stiff, a bit like riding astride an elizabethan church bench. As I wrote above, I felt instantly at home on his bike, even if we didn't use a twisty road for this test.
    I wouldn't mind building a Maney/Jim Schmidt bike in a Seeley Mk2 if I had the €€€...
     
    Last edited: Apr 28, 2018
  4. marinatlas

    marinatlas

    Joined:
    Nov 4, 2007
    Thank you Yves and Bruno, for that .........a pleasure to read your test , and bravo again to Yves for his perseverance.........a great moment of joy for him , I think!
     
    cjandme and Jagbruno like this.
  5. cjandme

    cjandme

    Joined:
    Feb 5, 2011
    +1 ... I just stopped for a bite to eat and read this while I waited. I'm on my pedal bike today- beautiful weather here in Houston (perfect for the MS150 charity bicycle rides first day) I started training too late and was not ready so it's just a short 20 mile ride for me today. I wish I was riding that Seeley though. Lovely write up Jag.
     
    Last edited: Apr 28, 2018
    Jagbruno likes this.
  6. yves norton seeley

    yves norton seeley

    Joined:
    Feb 13, 2014
    Not only with an Norton Nutter, before I spend 20 years of my life in the Jet Ski racing and she was always on my side, in good and bad days
    Here sickness make progresses in the bad way the last years but she keep smiling...She was and still is the most beautyfull girl of the city, so you can imagine how strong she must be now, she as only friends.
    Yves
     
  7. yves norton seeley

    yves norton seeley

    Joined:
    Feb 13, 2014
    Fantastic report Bruno, you are the Charles Dickens from the Nortons
    Thanks
    Yves
     
    Nater_Potater and Jagbruno like this.
  8. yves norton seeley

    yves norton seeley

    Joined:
    Feb 13, 2014
    I hope so
    Yves
     
  9. yves norton seeley

    yves norton seeley

    Joined:
    Feb 13, 2014
    Hi Cjandme
    Thanks to do that for the MS patients, hope that one day they will find the solution
    Yves
     
  10. Jagbruno

    Jagbruno

    Joined:
    Jan 6, 2014
    Yves' rocketship 920cc Seeley in front (obviously!) of my Featherbed Commando.

    [​IMG]
     
  11. Jagbruno

    Jagbruno

    Joined:
    Jan 6, 2014
    Man and machine, last summer, prior to the fitting of Fontana magnesium brakes and 920cc upgrade.

    [​IMG]
     
  12. yves norton seeley

    yves norton seeley

    Joined:
    Feb 13, 2014
    Hi there,
    Here are the good and bad news from my 920 big valves engine:
    The good one: the engine is going fast, very fast, the last weeks I was working on the carbs settings and I must be close to the ideal setting but I must go back to the dyno with the gas analizer to be 100 % sure, I put the bell mouths back on the carbs with a Pipercross dual socket airfilter, that act as a air box around the bell mouths, with this the engine bread better.
    Here are the setting from the Keihin 35 FCR ON MY ENGINE
    Main jet: 145
    Main air jet: 200
    Pilot jet: 58
    Pilot gas screw: 1turn out
    Pilot air screw: 1.5 turn out
    Jet needel: EMR, clip on notch four from the top.
    The bad one: I blow the 0.6mm head gasket, not between the bores, but between the RH bore and the head bolt in front of the spark plug, I dont see any reason for that... or better I see a lot of reason for this: to lean buit I dont think so, I did a lot of plug check and never to lean, to mutch advance I have 27 BTDC , maybe I must go to 26 or 24 ? The compression to high ? or the head gasket him self, the gasket was lazer cut here in Belgium, or the quality of the cooper?
    Maybe the 0.6 gasket is to thin, so I put a 0.8mm to lower the compression and I did a road test and I realy don't feel any difference in performance.
    Anyway I have to find a solution for the head gasket and the solution is in Germany, the factory name is Elring Klinger, the manufacture all kind of head gasket and they will have the solution, there is always a solution!!
    Keep you posted
    Yves
     
  13. Nater_Potater

    Nater_Potater VIP MEMBER

    Joined:
    Apr 7, 2013
    'Sorry to hear about the head gasket, but, for you at least, that shouldn't be anything more than a quick swap before your morning coffee break. I'm curious as to what is different about the Elring Klinger gasket as compared to the copper that you used earlier?

    Nathan
     
  14. yves norton seeley

    yves norton seeley

    Joined:
    Feb 13, 2014
    Hi Nathan
    Don't be sorry, this is the normal way when you tune a engine, and I don't believe in miracels, I don't believe that anybody can tune a engine W/O some issues in the begining
    About Elring Klinger: take a look at there web site and you will see that the have the knowledge and different type of head gasket, I will call them tomorow
    Yves
     
  15. MichaelB

    MichaelB

    Joined:
    Jan 14, 2004
    Always love your updates Yves. I and I'm sure others here live vicariously through you with all this work on this fabulous Norton!!!
    Keep them coming and Thank You.....
     
  16. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Yves, sorry to hear about your head gasket issue. This is stance isn’t it? JS goes as thin as 0.003” so your 0.006” gasket should have been fine.

    I guess we’ll never know the root cause for certain.

    If you do get the boffins to look at a Elring Klinger to look at this then you could become the global distributor for a new age Norton head gasket !
     
  17. yves norton seeley

    yves norton seeley

    Joined:
    Feb 13, 2014
    Hi Nigel,
    My gasket is 0.6mm and not 0.006"
    Yves
     
  18. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Sorry Yves, my error!

    That’s what happens when I engage in something before having my morning coffee !!

    But that correction only increases the mystery, 0.6mm is plenty thick enough for a copper gasket to function properly...
     
  19. Chris

    Chris VIP MEMBER

    Joined:
    Jan 21, 2008
    Hi Yves

    The 1007cc that Minovation ran blew it's gasket. Traced to the company laser cutting them not using the spec that Steve Maney asked for.

    Chris
     
  20. yves norton seeley

    yves norton seeley

    Joined:
    Feb 13, 2014
    I don't trust any cooper gasket anymore, they are more modern technologies for head gaskets, take a look at Elring please
    Yves