I currently have a Carter YFA carb remanufactured by national carburetor.


ND 1507 With a Climatic Choke


I am still struggling to get it to crank on warm restarts without giving it a small amount of gas. If I get out and manual set the choke a notch or two with the linkage, it cranks right up every time.


I am considering buying a Dorman HELP! - Choke Conversion Kit 55101 from the parts store and hooking it up. I see one issue from looking at my old feedback carb. It looks like you have to give push down the gas pedal down before the you can engage the manual choke because of the cold idle screw keeps you from engaging the choke.


Is this the case, or does any of the linkage need to be removed for the manual choke to work properly.


If anyone has any pictures it would be great.


Thanks,
Cody

 

Any carb that has a fast idle cam is going to require the throttle to be opened slightly to set the choke, whether manual or automatic.

As for pictures, there are some here: Carter YFA 1bbl - ???Gary's Garagemahal.

 

Thanks Gary for the response. In that case, it looks like it's as simple as removing the black choke mechanism and replacing it with the fork mechanism and cover that comes with the kit. Hook up and route the cable and you are good to go. One question though. How far does the choke valve need to close? I assume not all the way.

 

No, not completely closed. There's a spec somewhere of the size drill bit to use as the measuring tool, but I think something like 1/8 to 3/16 is about right.

 

Cool! I will see if I can get the kit and get installed this week if time permits. Now that it's getting to be spring, my better half sets my schedules for me. You know what they say happy wife happy life.

 

Yup, and my wife's been happy for almost 48 years.

 

Gary,

You are a rarity these days. It seems most people think it's easier to get divorced than to actually work through problems. My wife and I will have been married 7 years this October. We dated for 9 years before getting married and I couldn't be happier.

As always, thanks again for the help.

Cody

 

One problem I had with this kit is if you mount the cable above the choke plate axis it makes it difficult for the air cleaner to fully seat without pushing down on the cable. I also had issues with the end of the cable stabbing into the recessed dome under the air cleaner housing which would sometimes slightly close the choke while driving.

It might be some extra work to fab up some cable brackets, but on my new straight six truck I plan to loosen the fork in the adapter and flip it around so the cable can push/pull from below the axis of the choke plate. This will give the air cleaner housing a lot more clearance.

 

Thanks for the info, I plan on test fitting it on my old feedback carb befor I mess with my new one. I will take pictures once I get finished.

 

You are supposed to leave all the linkage and the choke pull-off or choke qualifier hooked up and working. If all that is working, on the first start cold you just press the gas pedal and hold it while you pull the choke completely closed, no adjustment with a drill bit necessary. Then when you fire it up, the choke pull-off will crack open the choke the proper drill bit amount for you. And the linkage will fast idle the engine properly also.

As you go down the road you can put the choke in about half-way and after about 15 minutes push it all the way in. This is all experimental though, each engine is different, and the outside temp will determine how much it needs, much like a lawnmower would.

 

Sounds like all I need to do is remove the current climatic choke housing and make sure the manual choke bracket that replaces it clears the air cleaner while in operation.


Everything else should be setup already.

 

And how about you, Gary?

 

Delighted! As was said in a movie I saw recently, I'm boxing above my weight.

 

Me, I out-punted my coverage!

 

If it will run right now, take the aircleaner off and look for the choke pull-off. It should be a round diaphragm looking thing bolted to the side of the carb, with a rod coming out and going into the choke linkage. If the engine is cold, push the throttle wide open(engine off, aircleaner off) and the choke door should completely shut. Then let the throttle come back, and then take the rod coming out of the choke pull-off diaphragm and push it back simulating what the choke pull-off would do. You will see how it comes back and cracks the choke open a little bit.

Then get the engine started, go out, the choke pull-off should be retracted. It retracts any time the engine is running. If it's not retracted, pull the rubber hose off it and see if it has vacuum. If it does, the pull-off is bad(not unusual). Put that on the list to buy at the store.