Results 1 to 12 of 12

Thread: Help - Weber 38 Starts and Stalls Instantly / No Idle

  1. #1
    DX User
    Join Date
    Sep 2018
    Vehicle
    1987 Honda Accord DX
    Location
    New Jersey
    Posts
    7

    Exclamation Help - Weber 38 Starts and Stalls Instantly / No Idle

    I recently installed a Weber 38/38 with an electric choke and canít get it to idle. I am running the factory fuel line straight into the carb, no FPR, and blocked off the vacuum port on the rear of the carb.

    Iíve checked for vacuum leaks where the carb meets the intake manifold/adapter and there doesnít seem to be any. With choke full open, Iíve tried adjusting mixture screws, idle speed screw, and I changed both fuel filters. The engine starts and revs for a few seconds and dies. The only way I can keep it from stalling is if I keep pumping the gas pedal. If I leave my foot on the gas instead of tapping the pedal repeatedly, it stalls. Since itís starting and Iím able to rev it when I pump the gas, Iím thinking the fuel pump is working (I hear it whir when I turn the key in the ignition).

    Iíve been messing with it for a week and canít get it to run. Really need some help on this! Thanks!
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	7491C9FF-C566-4DC5-B939-4D155C32D691.jpg 
Views:	8 
Size:	423.4 KB 
ID:	11113  
    Last edited by 87revival; 05-27-2022 at 01:42 PM.



  2. #2

    ShiRen's Avatar
    Join Date
    May 2018
    Vehicle
    87 Accord DX / 18 Civic Type R
    Location
    MO
    Posts
    938

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    Is the vacuum advance still connected

  3. #3
    DX User
    Join Date
    Sep 2018
    Vehicle
    1987 Honda Accord DX
    Location
    New Jersey
    Posts
    7

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    From the distributor, no it is not connected to the carb. But even when it was I was having the same issues.

  4. #4
    DX User
    Join Date
    Sep 2018
    Vehicle
    1987 Honda Accord DX
    Location
    New Jersey
    Posts
    7

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    Yup I just tried reconnecting that vacuum advance and still stalling. I removed most of the vacuum lines from the stock carb, do I just plug all the ends (like the ones on the back of the intake manifold)?

  5. #5

    ShiRen's Avatar
    Join Date
    May 2018
    Vehicle
    87 Accord DX / 18 Civic Type R
    Location
    MO
    Posts
    938

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    How did you connect the advance? There should be a line to the lower advance port to the manifold. Other than that, all ports on the manifold and carb should be plugged... That should be enough to run.

  6. #6
    DX User
    Join Date
    Sep 2018
    Vehicle
    1987 Honda Accord DX
    Location
    New Jersey
    Posts
    7

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    Is this what you mean? The one I circled is where I have the advance connected.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	41ECCD3A-9C8B-4743-8F0E-81387D3AA34F.jpeg 
Views:	8 
Size:	432.7 KB 
ID:	11115  

  7. #7

    ShiRen's Avatar
    Join Date
    May 2018
    Vehicle
    87 Accord DX / 18 Civic Type R
    Location
    MO
    Posts
    938

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    Yes. But you didn't have it connected initially? Did anything change when you hooked it up?

  8. #8

    Dr_Snooz's Avatar
    Join Date
    Jun 2007
    Vehicle
    1989 Accord LX-i
    Location
    Fresno, California
    Posts
    10,631

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    Is the choke closed when you try to start?
    Dr_Snooz

    "I like to take hammers, and just break stuff, just break stuff." - Beavis


    1989 Honda Accord LX-i Coupe, 240k miles, MT swap, rear disc swap

    Shop manual downloads available here: CLICK TO VIEW

  9. #9
    DX User
    Join Date
    Sep 2018
    Vehicle
    1987 Honda Accord DX
    Location
    New Jersey
    Posts
    7

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    Thanks for the replies, I've been double checking my connections and tried adjusting the choke (it's electric). The choke is closed when I try to start it. It seems to run when I increase the tension on the choke. If I prevent the choke from opening all the way it seems to idle. The idle is at about 1200 RPM and if I try to go lower, the idle is very rough and the tachometer is bouncing. Could this mean low fuel pressure or vacuum leak? And should I be letting the car idle without choke fully open?

    It seems like there is still an underlying issue...

  10. #10

    Dr_Snooz's Avatar
    Join Date
    Jun 2007
    Vehicle
    1989 Accord LX-i
    Location
    Fresno, California
    Posts
    10,631

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    Have you done any basic tuning on this carb?
    Dr_Snooz

    "I like to take hammers, and just break stuff, just break stuff." - Beavis


    1989 Honda Accord LX-i Coupe, 240k miles, MT swap, rear disc swap

    Shop manual downloads available here: CLICK TO VIEW

  11. #11

    ShiRen's Avatar
    Join Date
    May 2018
    Vehicle
    87 Accord DX / 18 Civic Type R
    Location
    MO
    Posts
    938

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    It's obviously going to need the choke open to run. Open the choke all the way and then mess with the mixtures, idle shouldn't be more than 1000

  12. #12


    Join Date
    Nov 2004
    Vehicle
    88 LXi
    Location
    Knoxville TN
    Posts
    4,961

    Re: Help - Weber 38 Starts and Stalls Instantly / No Idle

    Quote Originally Posted by 87revival View Post
    I recently installed a Weber 38/38 with an electric choke and canít get it to idle. I am running the factory fuel line straight into the carb, no FPR, and blocked off the vacuum port on the rear of the carb.

    Iíve checked for vacuum leaks where the carb meets the intake manifold/adapter and there doesnít seem to be any. With choke full open, Iíve tried adjusting mixture screws, idle speed screw, and I changed both fuel filters. The engine starts and revs for a few seconds and dies. The only way I can keep it from stalling is if I keep pumping the gas pedal. If I leave my foot on the gas instead of tapping the pedal repeatedly, it stalls. Since itís starting and Iím able to rev it when I pump the gas, Iím thinking the fuel pump is working (I hear it whir when I turn the key in the ignition).

    Iíve been messing with it for a week and canít get it to run. Really need some help on this! Thanks!
    It doesnt sound like its getting much fuel, I would see where he float adjustment is and what he fuel level in the float bowl is.
    1988 Lxi owner since August 1995
    336k miles running strong!
    Now running E85.

    Oldblueaccord <<< MY YOUTUBE PAGE!

Similar Threads

  1. a20a1 88 accord when cold starts then stalls
    By monkeymatt in forum Carburetor Tech
    Replies: 3
    Last Post: 11-09-2020, 03:34 PM
  2. Starts stalls after 1 sec. HELP?
    By lucytripping in forum Carburetor Tech
    Replies: 8
    Last Post: 05-09-2014, 11:33 PM
  3. Engine starts but smells rich and runs at 2500+ RPM - Weber 32/36
    By PDXAccord79 in forum 1geez Tech & Performance
    Replies: 5
    Last Post: 12-01-2012, 08:34 PM
  4. car starts, wont idle
    By Kagato in forum Carburetor Tech
    Replies: 7
    Last Post: 10-21-2008, 10:38 PM
  5. Car Starts Then Stalls!!
    By frankie89 in forum 3geez Accords
    Replies: 1
    Last Post: 03-17-2005, 02:15 PM

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
This website uses cookies
We use cookies to store session information to facilitate remembering your login information, to allow you to save website preferences, to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.
     
VigLink badge