My truck , a 69 f-100 has this carb. On a 300 6cyl. Thanks Mike. I get very good gas mileage, since it is a small one. This carb originally was on 56 Ford truck with a 223 6 cyl. motor which had a mpg of over 20, easy. I guess that's the reason my dad hung on to the YF carb.
Mike the part i was refering to below post is the assembly you have in your hand at 55 seconds point in this vid...i cant get that to come apart or come up from the floor of the bowl...really stuck super hard....carb had a mus dobber nest and had been on a dead motor for years...laphant...tnx for your vids ..
Mine is a 3211S. A little different. I'm wondering about a hole on the side, but it looks like it's in the middle on there. The hole has a hole in the gasket for it, but it seems plugged up with something. Not sure if it's supposed to be like that or if it's crud that got jammed in there? Well. It actually looks like lead, to close it off, as it seems to go to the choke, that has been made into a manual choke, and it's missing parts.
Hello I am rebuilding a carter yf 4480s that I plan to install on a chevy 230 engine. It is replacing a rochester b. I am just wondering if you sell a throttle arm extension (probably not the correct terminology) that would work so that I could use the vehicles existing throttle linkage. The yf's arm is 180 degrees off from the bv. If not no big deal. Thanks for all the videos and selling all the great hard to find carburetor parts.
Hi Mike. This is the best video I've found for explaining things but it has been 10 years since you posted it. The resolution at 240p is hard for me to see. I would like to ask you the favor of reloading this to UA-cam at higher resolution or creating a new video. Regardless, thank you!
@@MikesCarburetor at 240p the resolution is blurry. I can't increase the video resolution because that is what you originally uploaded it as back in 2010. At first, I skipped past this video looking for other newer videos with better resolution. But your video in terms of explaining what you were doing was the best. I followed you along on the video step by step while I rebuilt my YF 938SD carburetor. So thank you for the content you've created!
@@MikesCarburetor It's not on his end. I strained my eyes to try and see the accelerator check weight and with the blurry resolution of this video, it is very hard to see if it matches up to what I am seeing in my kit. We're all spoiled by 1080P resolution these days, lol. It would also be nice if in your video, you explained which of the 3 check balls to use in the event that you don't have the tapered type weight. Unfortunately my check ball and weight (or tapered check weight, I'm not sure which) was missing when I got the carburetor, so I am just guessing as to whether it is the tapered weight or weight and ball style that applies. I am hoping that I'm right in guessing that the brass piece that is in one of the two float needle and seat baggies, is the check weight.
Thanks mike that video was just what I needed. I do wish you would have talked a little about the balls that come in a kit and what to do with them. Those needle valve check ball thingys are what make me second guess myself. The screwing part I got. Maybe a supplement video? Thanks so much tho.
Wait a minute....don't you need to adjust the accelerator pump and metering rod...? and, what type of spring do you use on the needle valve to keep it from getting caught sideways like you said?
Mike i have a yf just like this one apart right now...problem is the accelerator pump assembly like in your hand is stuck really hard and wont come apart..i soaked in autozone carb cleaner (sprayed into bowl till covered the acc pump gasket line...still no come apart...what to do help please? also is the carb rebuild kit available from you? cheers,laphant
hey mike the metal washer that on top of that grommit for the pump arm im missing out of my carb an it doesnt come in the kit but the lil fubber gasket does is there any way of gettin that metal space that goes on top to keep my carb from leaking
My question is my carburetor Carter YF, when the rod goes into the main jet it should be sealed or what should it do? Because black smoke comes out?? Thank you.
Mike, thanks, my carb., a YS I got something wrong, after 3 Times, you would think it would work, do you recommend anyone I could get to check it out, it’s off 1952 m-38 Military Jeep, I had one guy told me the fuel pump wasn’t working right, changed it but didn’t help, thanks for your advice
Im having a heck of a time with my 75cj yf carb...i rebuilt it but it is still doing the same thing as before i built it. It idles okay, but when i hit the accelerator it dies. I have the air cleaner off and it shounds like there is a big rush of air when it dies.... any ideas?
This sounds like my problem too. Actually had no problem. I had to pull it off the intake manifold while replacing exhaust manifold on a FMC 300. Just decided to rebuild since the kit was only $16. Now it will start & idle just fine, but on quick acceleration or WOT it will stumble & stall. Slow & steady acceleration is fine. HELP
Mike,my YF on a 74 AMC Hornet is a reman and it runs great but after about 15 minutes it starts leaking,I figured the float valve is not doing its job or the mechanical fuel pump is over powering it.I squeezed the rubber fuel line and it ran great and no leak.This is the 2nd carb that did the exact same thing.Fuel re-stricter needed?Thanks Mike.Great videos
is the metering rod what pulls the throttle pump down to operate it? I'm dealing with an old yf that fire some reason has had the sides of the metering rod ground flat on the end..
Mikes Carburetor thanks for the response, I will look for another metering rod, I'm trying to figure out what makes the throttle pump move down to prime it, this one was bodged to make or pull down with the linkage, I put it together what I think is correct and the throttle pump floats on it's spring with the lever down out of the way but I don't see what pulls it down..
Hi Mike i am rebuilding a yf carburetor and when i reasemle it. the throtle butterfly moves in the correct direction but the aelerator pump works in the opposite direction . its doing my head in . i would have expected the accelerator pump to work as the throtle opens can you help
Mikes Carburetor I look for my part under Willy’s or Willy’s overland it is a 1953 I can see where you use Jeep but most of the time if they use Jeep they don’t have my parts
editing all of the fumbling-dropping of tools-finding screws-driving screws in(fast forward) would make this a much better video. also-show every step-not half done so everyone just watches you screw in screws. right? craftsman makes screwdrivers that wont cause you to run off the screw and re acquire it several times each screw. this was a 3 minute video that took 14 minutes and 43 seconds. I'm just saying.
After watching this, l think whoever invented or designed the carburetor had to be a genious. There are some very simple but extremely efficient.
@@MikesCarburetor -😀
My truck , a 69 f-100 has this carb. On a 300 6cyl. Thanks Mike. I get very good gas mileage, since it is a small one. This carb originally was on 56 Ford truck with a 223 6 cyl. motor which had a mpg of over 20, easy. I guess that's the reason my dad hung on to the YF carb.
What's the cfm on the YF carb?
Mike the part i was refering to below post is the assembly you have in your hand at 55 seconds point in this vid...i cant get that to come apart or come up from the floor of the bowl...really stuck super hard....carb had a mus dobber nest and had been on a dead motor for years...laphant...tnx for your vids ..
Thanks for your vedio .I have 1952 Pontiac with same carburater
This helped me out thanks
Mine is a 3211S. A little different. I'm wondering about a hole on the side, but it looks like it's in the middle on there. The hole has a hole in the gasket for it, but it seems plugged up with something. Not sure if it's supposed to be like that or if it's crud that got jammed in there? Well. It actually looks like lead, to close it off, as it seems to go to the choke, that has been made into a manual choke, and it's missing parts.
What about the check balls for the pump intake? Can you show were they go? 3:04 3:07
Hello I am rebuilding a carter yf 4480s that I plan to install on a chevy 230 engine. It is replacing a rochester b. I am just wondering if you sell a throttle arm extension (probably not the correct terminology) that would work so that I could use the vehicles existing throttle linkage. The yf's arm is 180 degrees off from the bv. If not no big deal. Thanks for all the videos and selling all the great hard to find carburetor parts.
Hi Mike. This is the best video I've found for explaining things but it has been 10 years since you posted it. The resolution at 240p is hard for me to see. I would like to ask you the favor of reloading this to UA-cam at higher resolution or creating a new video. Regardless, thank you!
@@MikesCarburetor at 240p the resolution is blurry. I can't increase the video resolution because that is what you originally uploaded it as back in 2010. At first, I skipped past this video looking for other newer videos with better resolution. But your video in terms of explaining what you were doing was the best. I followed you along on the video step by step while I rebuilt my YF 938SD carburetor. So thank you for the content you've created!
@@MikesCarburetor It's not on his end. I strained my eyes to try and see the accelerator check weight and with the blurry resolution of this video, it is very hard to see if it matches up to what I am seeing in my kit. We're all spoiled by 1080P resolution these days, lol. It would also be nice if in your video, you explained which of the 3 check balls to use in the event that you don't have the tapered type weight. Unfortunately my check ball and weight (or tapered check weight, I'm not sure which) was missing when I got the carburetor, so I am just guessing as to whether it is the tapered weight or weight and ball style that applies. I am hoping that I'm right in guessing that the brass piece that is in one of the two float needle and seat baggies, is the check weight.
Thanks mike that video was just what I needed. I do wish you would have talked a little about the balls that come in a kit and what to do with them. Those needle valve check ball thingys are what make me second guess myself. The screwing part I got. Maybe a supplement video? Thanks so much tho.
Great video
Very Helpful Thanks
Wait a minute....don't you need to adjust the accelerator pump and metering rod...?
and, what type of spring do you use on the needle valve to keep it from getting caught sideways like you said?
I have a Carter stamped 2158s…….any idea what rebuild kit neec
Mike, I picked up a YF carburetor and previously someone has pushed in the ball, now it's stuck and doesn't come out. What should I do about it.
Please record again, but then in focus.
Mike i have a yf just like this one apart right now...problem is the accelerator pump assembly like in your hand is stuck really hard and wont come apart..i soaked in autozone carb cleaner (sprayed into bowl till covered the acc pump gasket line...still no come apart...what to do help please? also is the carb rebuild kit available from you? cheers,laphant
Hi Mike. Can I common your video through my brog to my Japanese Jeepers? Your video is the best I saw before.
hey mike the metal washer that on top of that grommit for the pump arm im missing out of my carb an it doesnt come in the kit but the lil fubber gasket does is there any way of gettin that metal space that goes on top to keep my carb from leaking
My question is my carburetor Carter YF, when the rod goes into the main jet it should be sealed or what should it do? Because black smoke comes out?? Thank you.
Mike, thanks, my carb., a YS I got something wrong, after 3 Times, you would think it would work, do you recommend anyone I could get to check it out, it’s off 1952 m-38 Military Jeep, I had one guy told me the fuel pump wasn’t working right, changed it but didn’t help, thanks for your advice
Im having a heck of a time with my 75cj yf carb...i rebuilt it but it is still doing the same thing as before i built it. It idles okay, but when i hit the accelerator it dies. I have the air cleaner off and it shounds like there is a big rush of air when it dies.... any ideas?
This sounds like my problem too. Actually had no problem. I had to pull it off the intake manifold while replacing exhaust manifold on a FMC 300. Just decided to rebuild since the kit was only $16. Now it will start & idle just fine, but on quick acceleration or WOT it will stumble & stall. Slow & steady acceleration is fine. HELP
Hello, I was wondering if you ever found the problem. I am having the same problem with my yf carb.
@@bendumm5378 I switched to a motorcraft from a 5.0 mustang. Tinkered with jetting and now it screams.
@@davidrunkel5241 Hello i was wondering if you ever found the problem . i am having the same problem with my yf carb
Mike,my YF on a 74 AMC Hornet is a reman and it runs great but after about 15 minutes it starts leaking,I figured the float valve is not doing its job or the mechanical fuel pump is over powering it.I squeezed the rubber fuel line and it ran great and no leak.This is the 2nd carb that did the exact same thing.Fuel re-stricter needed?Thanks Mike.Great videos
Our '74 Hornet had a YF that backfired when it was cold. An independent shop found out about a modification that solved the problem.
is the metering rod what pulls the throttle pump down to operate it? I'm dealing with an old yf that fire some reason has had the sides of the metering rod ground flat on the end..
Mikes Carburetor thanks for the response, I will look for another metering rod, I'm trying to figure out what makes the throttle pump move down to prime it, this one was bodged to make or pull down with the linkage, I put it together what I think is correct and the throttle pump floats on it's spring with the lever down out of the way but I don't see what pulls it down..
@@hangfire5005 - l think the flow of fuel activates the rod. I could be wrong though, l'm no carb expert.
does the choke lever not have a cover for the yf model? i’m trying to figure that out on a 69 f100
Mikes Carburetor so how does the choke cable connect to it then i’m having trouble finding how to keep it on, i’m new to carburetors😁
Mikes Carburetor do you know the part number or do you sell that part because that’s what i am missing?
Hi Mike
i am rebuilding a yf carburetor and when i reasemle it. the throtle butterfly moves in the correct direction
but the aelerator pump works in the opposite direction . its doing my head in . i would have expected the accelerator pump to work as the throtle opens can you help
ok thanks just did not seem correct
Mike I have a YF for a m-38. Had it rebuilt 3 times still not working right, do you have a shop and do you rebuild them ?
Sorry mine is a YS
Mikes Carburetor mike
If you have a rebuilt for yf carb why don’t you list Willy’s on the truck list
Mikes Carburetor I look for my part under Willy’s or Willy’s overland it is a 1953 I can see where you use Jeep but most of the time if they use Jeep they don’t have my parts
Buenas explicacionesbdc,
editing all of the fumbling-dropping of tools-finding screws-driving screws in(fast forward) would make this a much better video. also-show every step-not half done so everyone just watches you screw in screws. right? craftsman makes screwdrivers that wont cause you to run off the screw and re acquire it several times each screw. this was a 3 minute video that took 14 minutes and 43 seconds. I'm just saying.
Does anybody know what size the bolts are that hold the throttle body section to the bottom of the carb? My local "Bnut and bolt" suplyer wss stumped?
Great video