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1973 carburetor 6 cylinder

Discussion in 'Intermediate CJ-5/6/7/8' started by movinmyers1972, Jun 2, 2014.

  1. Jun 2, 2014
    movinmyers1972

    movinmyers1972 New Member

    Joined:
    Dec 10, 2012
    Messages:
    10
    The vapor canister is missing off my cj6. Every time I start the jeep, it quickly floods the carburetor and pushes fuel out what I believe would be the outlet going to the vapor canister. What are best options? I have a couple of newer carbs but they are 4 bolt base and my intake is 2.
     
    movinmyers1972, Jun 2, 2014
    #1
  2. Jun 3, 2014
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    Check the basic condition of the carburetor. Classic symptom of debris in the float needle/seat allowing too much fuel to the carb float bowl. Also check the float to see if it is filled with gas (should be hollow and empty if brass, if neoprene they tend to absorb gas making them heavy)
     
    nickmil, Jun 3, 2014
    #2
  3. Jun 3, 2014
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    The YF is known for sticking float issues, a Google search will turn up lots of reading material.

    I've had 3 different YFs on my '73 including a factory rebuilt one. Each one has had this issue in varying degrees. I'm looking into changing out the needle and seat assembly once I can source the correct one.
     
    w3srl, Jun 3, 2014
    #3
  4. Jun 3, 2014
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
    Joined:
    Aug 3, 2003
    Messages:
    9,833
    On a 4-cylinder YF a lot of guys like to install a fuel pressure regulator, set to 3 psi. Eases the input pressure on the float needle valve.
     
    PeteL, Jun 3, 2014
    #4
  5. Jun 3, 2014
    movinmyers1972

    movinmyers1972 New Member

    Joined:
    Dec 10, 2012
    Messages:
    10
    Thanks for responses. Adjusted float valve tonight and fired right up and didn't overflow. Thanks again!
     
    movinmyers1972, Jun 3, 2014
    #5
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