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Solex Carb Schematic/ Diagram For 1963 Cj5 : Butterfly Flap For The Choke

Discussion in 'Early CJ5 and CJ6 Tech' started by Sundance1, Jun 19, 2020.

  1. Sundance1

    Sundance1 New Member

    Help,

    I have a 1963 CJ5 that I use occasionally mostly weekends. It has been driving well until this season where I have been having some carb issues. loss of power, rough idle and hesitations.

    I am not a mechanic, I have general knowledge but far from a mechanic.

    The plugs are heavily sooted so will be changing them out next week.

    I decided to to see if the choke was not stuck open and is physically working OK so I removed the air intake cover on top of the Solex carb and peered down the barrel while opening and closing the choke lever ...I don't see a butterfly flap opening or closing! nothing physically changes....Is it me that is complete noob or is the butterfly flap for choke hidden not visible from the top

    I then open and close the throttle and yes there is a butter fly flap that opens wide and and closes while squirting gas into the throttle body. However the choke seems not to move this flap at all.
    Am I missing soemthing here?

    Tried looking for a schematic but the ones I found were illegible.

    Thanks
     
  2. ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    Sorry, I don’t have a schematic, but the Solex uses an enriching circuit rather than a traditional butterfly. It adds more gas internally rather than cutting off the airflow to create vacuum against the jets. Same result, different route.
     
  3. Glenn

    Glenn Kinda grumpy old man Staff Member

    Maybe just needs a cleaning and float adjustment? Maybe needle valve replacement too?
     
  4. Sundance1

    Sundance1 New Member

    Thank you ....that clears up the butterfly flap. I will play with the idle and mixture screws first and if that does not work then maybe get the carb cleaned and adjusted.