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electronic ignition issue (2014)

Discussion in 'Norton Commando Motorcycles (Classic)' started by NORTONUP, Aug 18, 2014.

  1. L.A.B.

    L.A.B. Moderator VIP MEMBER

    Joined:
    Nov 20, 2004
  2. NORTONUP

    NORTONUP

    Joined:
    Mar 18, 2014
    Thanks to every one for all the help, great forum with great people.
    The bike is running quite well now, turns out that when I put the tank on it was pulling the throttle cable on the right cylinder hence it was never going to be set up correctly.
    The only issue I have now is that I am getting the odd flame from the right cylinder and it sounds as if its missing a little bit.
    Carb is set up the same as the other, timing is correct, any ideas ?
     
  3. chasbmw

    chasbmw

    Joined:
    Aug 30, 2011
    Some electronic ignitions vary the revs that they reach full advance at, eg could be in the range of 3500-4000, so when setting the timing at full advance, do it when you see that the ignition stops advancing, rather than looking at the rev counter.

    +1 on resistor plug caps, the NGK ones are cheap as chips.
     
  4. TopgunPeter

    TopgunPeter

    Joined:
    Oct 17, 2017
    Electronic ignition systems have to be timed static at the full advance position and it is then up to the system to retard ( delay ) the timing dependant on the rpm.
    I have never understood why Commando timing is 28º full advance when for many years the Atlas & 650SS were 32º. Commandos are only an Atlas engine with the 650SS compression ratio. The other confusion is that on all my Commandos I have carefully checked the timing marks with a dial test indicator and degree plate and found that the actual 28º timing shows about 31º on the primary cover degree plate, a simple manufacturing error or did the development engineers find the engine ran best at the displayed 28º which is really about 32º and left it that way ?
     
  5. jbruney

    jbruney

    Joined:
    Jan 5, 2019
    As old as they are we still are intrigued by them. I have yet to strobe mine because once I managed to correctly follow the provided wassel instructions all fell into place. Tinkering could possibly jinx my good fortune anyway..
     

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