1978 (k)z650 overflowing carb

Discussion in 'UK Motorcycles' started by martinski, Jan 18, 2004.

  1. martinski

    martinski Guest

    The bikes been stood idle for months and as part of the 'get back on the
    road' plan, amonst other things i've already had the bank of carbs off,
    removed the float bowls and checked the floats for movement. They were all
    okay but did find one of the needle valves stuck solid. Freed it up and the
    correct 'float bounce action' was restored. Prior to this, turning the
    petrol tap to prime position caused petrol to pour out of one of the
    overflow pipes. Carbs are now refitted and this seems to have fixed that
    particular problem. But now when the bikes running petrol is pours out of
    one of the overflow tubes every 6 or so seconds.
    Is this the same problem returned or something else and is there a posible
    solution that can be performed without having to remove the carbs? That was
    one ballbreaking miserable job. Just to mention that the bike appears to
    start easily and runs smoothly despite this carb problem.
    martinski, Jan 18, 2004
    1. Advertisements

  2. martinski

    Petel Guest


    Take the overflow pipes off.

    Note which carb is flooding.

    Check the floats are`nt punctured (stick `em in a bowl of water an watch for

    Check the float valve rubber tip(or metal tip if an old type) is in good

    Check the float valve seat for scoring.

    Check float height with a *good* steel rule or vernier.

    Replace knackered bits.

    Ride bike.

    Petel .
    02 M2 Buell.

    Petel, Jan 18, 2004
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.