Brock

Thanks for the advice. I got out the voltmeter and found that one of the female spade connections in the connector coming from the distributor/ignition had ~12 V (only when the key was on) so I just wired that to the electric choke. When it warmed up, the choke opened so I think the choke is working. I was able to make adjustments to this new YFA electric choke 1 bbl non-feedback carb but I still have a problem. I adjusted the idle mixture screw, curb idle screw and fast idle screw. There was a surging up and down in the rpm's every few seconds during idle and so the only adjustment I could make to fix that was to screw the curb idle screw in ,mashing the spring down (a bit more than seemed appropriate to me). The idle mixture screw didn't seem to cause much change when I adjusted it. I think I screwed the curb idle in too far because when I went for a (very short) drive, I put it in first gear and I didn't need to push the throttle to move, it did it on its own, the throttle almost seems too responsive. Any ideas on how I should proceed? I'd like to reference a document that could illustrate what vacuum hoses need connected and to where. Does anyone know of one? There are several factor plugged ports on the carb that I'm not using. Thanks in advance for the help!

Well I installed the new non feedback YFA electric choke carb and reconnected everything except the electric. I’m wondering which wire from the truck to connect to the electric choke? See the image below. Any suggestions? I tried the single white ended connection but when I started it the rpms ramped up really fast and then it died. Once I make the correct wire connection, the fun begins adjusting the carb - I’ve never done that.

I removed the old carb. I wonder if part of the rough starting and idle problem was exacerbated by possible vacuum leak? I could jiggle the carb before I remove it. It seemed loose. Here is a picture of the intake after the carb was removed.

So I think I’ll get a single barrel carb with non-feedback. I just need to choose either climatic choke or electric choke. I’ll probably get one from the National Carb site below. https://nationalcarburetors.com/ford-trucks_c_292.html_6-cylinder-1-barrel-carburetor_1982 Could anyone recommend one on that webpage? At the moment I have a manual choke but it would be nice to have it be automatic. I thought about going 2bbl with an adapter but I don’t want to overkill this.

I dont think you will find anything on the engine on what it is or from. On the dist. just take a better picture of it and if it has a vacuum hose going to it. I think the dist. dose have a vacuum hose and the truck has the DSII box on the inner fender. I also think the carb is a feed back from something else. If that is the case and if the carb is not working right it might be best to replace it with a non-feed back one than try and rebuild it. With non-feed back parts installed we can then help you tune it, feed back system a computer dose the tuning. Dave ---- Here are some more pictures. I found that likely the distributor was from this 83 Bronco, but the carb was from an 82 F150 (which that is also the engine that is installed). I found that there is a vacuum line running to the carb from the distributor (module just below it)

FuzzFace2 - This engine had been swapped from a pickup truck and I do know that the carb is not original from this Bronco. My dad had told me that the previous carb ran better. So, it sounds like I may need to run a check on the engine to find out what engine year is in there. I will look for the engine nameplate or something, not sure where it is though. If I found that information that would probably tell us what type of distributor is there. Would that then be enough information to make sure I can find the correct carb?

Sorry for the delay here are more pictures

Glad to get in touch with some 300 guys. What do you mainly use your Bronco for, rock climbing. Any pictures? So you have the 2.5 in exhaust with an EFI manifold?

StraightSix - This rig used to belong to my dad. The mechanic he used told me that that the existing carb was somewhat faulty and had issues with the choke. He recommended going with a new carb. He put in a manual choke but cold starts have always been difficult and are getting worse, especially in these cold Montana winters. I’d like to start on a more simple carb project, since I am not an experienced mechanic. Though I really like the idea of performance or mileage upgrades, I’d settle for a fix that would just make it more dependable. Do you have pictures of your rig?

Thanks Gary. That would definitely safe money. Here is a pic of the distributor.

Admin - I live in Laurel, MT. I can send a pic of the carb when I get back home on Sunday. Thanks fir the thread. I reached out to Jamesg to see how his project went. Any advice on a good repair manual? I need to do some work on the brakes and suspension also.

tommyg- how did this carb/dist/relay project of yours work out? I am trying to decide on a good carb for my 83 Bronco so I appreciate any insights.

Howdy! I’m new here and am looking for advice on a good quality carburetor to purchase for my 83 Bronco 300 straight six. I’ve looked in several places online but I’m unsure what features I might want to make sure to include (like 1 barrel or 2, electronic choke or not, etc), also wondering which manufacturer would be best to go with. Thanks for providing a place to help new guys like me.