1978 KZ650 C3 : Not firing on one cylinder update

Discussion in 'UK Motorcycles' started by martinski, Mar 2, 2004.

  1. martinski

    martinski Guest

    Checked that the plug was firing as advised and yes, good healthy spark on
    affected cylinder. Removed drain plug screw from carb float bowl and flushed
    through by turning fuel tap to prime position. I've even stuck some Redex in
    the tank. All to no avail. Bike starts great. Seems to rev okay when
    standing still. But drive away on it and it's hard to rev beyond 3k rpm.
    Yanking the choke open rips it into life but fades away again as soon as the
    chokes closed again. It sounds like fuel starvation on carb two but any
    ideas as to what's causing this? And better still, suggestions as to how i
    can overcome the problem?
    I assume i shouldn't try revving the nuts off it in an attempt to clear the
    blockage. I seem to remember that four cylinder engines dont like being
    revved when one or more cylinders aint firing properly.
    martinski, Mar 2, 2004
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  2. martinski

    ß Ø ® G Guest

    blocked jets, or split diaphragm, week plug breaking down under load,
    blocked air filter, condenser gone

    E-Mail Addy obet(ng)qfy(qbg)cvcrk(qbg)pbz <---Rot13 it
    watch out for spam trap in header

    Trike Power the TRUE Trinity
    ß Ø ® G, Mar 2, 2004
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  3. martinski

    martinski Guest

    BOG wrote >
    More likely, but question is, how do i unblock it? Is there some gunk i can
    pour through the system that'll flush out any crap?
    martinski, Mar 2, 2004
  4. martinski

    John Munro Guest

    Nah, the carbs are gonna have to come off and properly looked
    at/cleaned. Then you know they are not at fault.
    No easy way there mate.
    John Munro, Mar 2, 2004
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