Carburetor Adjustment Basics -EricTheCarGuy

[@wptophat5732]

Thank you SO much! My mechanic swore I needed a new carb, but all I really needed to do was make a couple simple adjustments. I think I still have a vacum leak somewhere, but this alone has saved me over $400 on a new carb! THANK YOU!

[@suzysuzuki8865]

Most the time the mechanics just don’t feel like working on them lol

[@peterpeterson2368]

Y’a one tried to charge me 3000$ to swap my aisin carb to a webber lmfao

[@ruben3305]

I love how people take the time and make videos on how it works and repair automobiles. THANKS FOR THE VID. YOU ROCK!

[@manodfergus]

I was in a world of chasing my tail trying to tune my carb until I watched this video....then I was able to nail it. Thanks Eric!! What the internet does best. Subscribed.

[@Roushfan5]

You know it's an Eric the car guy video when a 'basics' video is 20 minutes long, I love it. Scotty Kimler would go over an engine rebuild in a five minute video,.

[@bradsmith1046]

Another great video Eric thanks. Folks like me would still be paying through the nose and suffering vehicle availability loss while waiting for a busy shop to diagnose and correct things. Wonderful of you to share your invaluable experience.

[@JeffBazell]

I've watched several 'how to' videos on KZbin. EricTheCarGuy is by far the best. He has a great personality, good enunciation, good sense of humor and if he had a radio show I would listen for sure.

[@mrv1271]

Best video on carbs. No gimmicks no fancy video tricks just useful honest information.

[@ericthecarguy]

Now that the carburetor has been rebuilt, let's adjust it. Carburetor Adjustment Basics -EricTheCarGuy

[@mtrltoolman]

Very Good i love it. Now we need an explanation for the vacuum gauge what can use for and how to read it. Thanks alot.

[@madrox4132]

toolman talal You want equal vacuum across all of the ports

[@mtrltoolman]

+Thomas Gionet i don't understand the partitions of the gauge how to read it and how to use it.

[@madrox4132]

inHg is inches mercury, a way to measure pressure. -29.92 inHg is full vacuum, 0 is atmospheric pressure at sea level and a positive reading would equal positive pressure. To use the gauge you simply connect it to a source of vacuum.

[@mtrltoolman]

Thomas Gionet great explanation thanks. I have a vacuum pump break bleeding ket and there tow units in the gauge inHg and i can't. remember the second unit and i can't figure what scale for what unit. sorry for the very much questions. thanks again.

[@Rumbleghost]

There are so many instructions you can read and so many videos, but the little gem that makes this one so much more realistic and valuable "I don't think that's intake vacuum".

[@larenzogarth47]

thank you, i adjusted my choke like you explained and it fixed several issues i was having (with my 78 monte carlo) for months. Car runs like a champ now

[@Andersons101]

Even today, in 2021 this video is helping me more than you know! Much respect 🙏🏼

[@vendetta1306]

I have so much respect for this man, I'm trying to be a mechanic outta high school

[@Mistyfgdf]

Vendetta how’s it going? I’m trying to get into one of these trades after hs also, I got auto body repair and pain refinishing, teacher got a old v8 Camaro in the shop I asked too work on it and was aloud, first I had too turn it on... it was carbureted and man it felt fking good, then I started welding a panel onto it Short story is it really sparked my perspective and drive for the trades

[@charliekiger]

@@Mistyfgdf Just do it! Don't waste your time with a school, just get tools and go to work!

[@jdrs4214]

You go for it young man!!! Even tho, I do recommend going to college to study new car mechanics and diagnostics. Read some books on modern cars during your spare time if you’re not gonna go to school.

[@bobi_lopataru]

me too but my mom wants me to go to college

[@vendetta1306]

@@bobi_lopataru Trade school = College

[@joshmusilek199]

Thanks man! Fixed my '85 ford truck with the 300 inline 6. 300000 miles and going really good. It has one of those Carter yfa auto-choke one barrel carbs, really similar to the one in your video

[@billroden8520]

Thank you, thank you, thank you!!! I'll feel much more comfortable rebuilding and adjusting my carburetor. My '71 Gremlin has needed this for a very long time, the rebuild and the adjustment. Also glad you used a one-barrel Ford, since it is quite similar to my Carter YF.

[@hafizmahmood5673]

Love you man! You are so helpful to us young guys trying to get our skin in the game! Thank you for sharing.

[@Just.bonsai]

Great video! Thanks for actually showing everything as you go, instead of just talking about it. Very helpful.

[@kanecombes8918]

you're a god send, i've been looking for info on holley 1946 tune ups and tunes ups in general, and your video is probably the best that i've found. keep up the good work

[@yloow2]

I grew up adjusting carbs ,,,, seemed like a monthly thing . I always had pintos . Gotta love the ford . Now days autos are not so personal . I remember pulling off the highway and grabbing the screwdriver . Eric you are bringing the yesteryears back and I thank you very much .

[@reallunacy]

Thank you so much for this video. I have a motorcycle with three carbs that I just rebuilt and this is helping me find out how to properly adjust them.

[@TangoMike88]

This video saved me so much time and trouble with my 78 Subaru Brat. Really great job explaining! Thanks so much

[@xargos]

Hey, it's the predecessor to my 1984 Ford Tempo! I need to make some adjustments on its carburetor so it only seems fitting that this is the video I ended up watching on the subject.

[@michaeledwards8051]

There should be levels of thumbs up for videos because just tapping a single thumbs up does not express this is a great video and really appreciate it

[@pookatim]

This really takes me back! Must be hard for young people to relate to fixing cars that had no "code readers". To me, being a good mechanic was as much an art as a science. BTW- I don't believe I have ever seen you look more self-satisfied and perhaps proud of your work as you seem to be in this video!

[@hotajax]

Eric rocks. He will tell you stuff you never even thought about.

[@gallegossouth4331]

wow! this was the best video How To for Carberators i have found! GREAT DETAIL ON FIXING CARB CHOKE AND IDLE SCREW!! THANK YOU!!

[@Carr0010]

Great work bro. Going to try on a 1993 nissan sentra b13 Carburetor. Revs at a 1000 when in gear, once its neutral revs goes up almost 2000 rpm.

[@davidroddick5465]

Loved the background of Mason. I enjoyed that trip.

[@hayqueporter3884]

Love it. Was a good way to learn with your step by step method. Thank you Eric From NZ.

[@AGuysGarage]

Great job with the adjustment and the rebuild. Over the last couple of years I have learned a TON from your videos. Love em!! Keep em coming and stay dirty !

[@o2boutdoors]

Just rebuilt the YFA carburetor on my Fairmont, and this is super-helpful. Going to buy a vacuum guage and tune it now...thanks!

[@ramueller11]

That tuned up strait 6 sounds great in it's own non-assuming way. I predict Eric will have trouble pulling the trigger on an engine swap...he's spent so much time and effort working on that engine and it's running like a beaut.

[@neroangelo1464]

My moped was running on way too little air, but after 1 hour of adjustments it ran just the way it should :)

[@spratsprat3266]

I just had an influx of memories from working on a old Buick 350 and how I had to go through 2 Quadrajet s before I could find one not dicked six ways to Sunday and then adjusting the hot air choke. I guess I got to put that engine back together

[@antiekeradio]

Hi Eric, in the whole video you did not mention float level check/adjustment, and I was waiting for it since in my opinion this is the first basic settings you should check/correct when adjusting any carburettor. Often the lip/tongue part of a float can be bent to set the float level just right. Float level is important because it affects mixture richness along a very broad load range.

[@LMacNeill]

I think you should re-do the 1/4-mile baseline time, now that she's running so well. I'll bet you can crack 20 seconds. :-)

[@TechTimeWithEric]

Good point

[@alanmaier]

I was thinking the very same thing.

[@inertia210]

Yup I was thinking about this myself

[@JoshX9]

I believe he mentioned that the headgasket was leaking so it would probably blow up after 1st/2nd run

[@michaelmounts1269]

Great video--many thanks. I am old enough that my first car had a manual choke--I personally think auto-chokes are responsible for an awful lot of driveability issues. But really nice to see you disseminate this kind of info...Kudos

[@nathanboyles6222]

people can complain about the fairmount project all they want. they've been SO useful to me

[@yloow2]

Damn that winding out of second was nice . I can't wait to find a pinto again

[@markvandommelen]

Hey Eric, How about doing a video replacing timing chain and gears on that model. The parts are inexpensive. I would like to see the change in performance also. Thanks

[@davec7014]

Just found your post. A) I had this car but had a 4 cyl - I would have loved 20 second 1/4 miles. BUT you could put 5 bodies in the trunk. Great car to go cross country. I am working on an Autolite 1100. How long can a car sit with gas and still start? Did not start mine for 3 months due to maintenance. Thanks Bro! Great video!

[@mds6387]

Second comment. I have worked on modern cars for over 15 years. Those whom say that older vehicles were easy to work on are wrong. Modern vehicles have so much automated mechanisms that it is considerably much simpler to get the vehicle running smooth. A carbureted engine is so much more of a pain of the ass to work on and tune.

[@LightofBankai]

Man! Adjusting a carb is one thing. Adjusting a carb to pass California smog is another.

[@JoshX9]

Where is your oil cap?

[@shreddder999]

13:00 Wouldn't you check for vacuum leaks before you make any adjustments at all?

[@brettdrake5615]

This was a REALLY helpful video for this new vintage car owner. I'd like to set the idle mixture as shown and am ready to go get a vacuum gauge, but I can't for the life of me find a place to tap into intake vacuum. Is it possible that my '67 Mustang with the 200ci inline six (with Autolite 1100 carb) just doesn't have a vacuum port on the intake manifold? I don't see anything at all.

[@davidk3119]

I love your videos. I have a motorcraft 4350 and can't seem to adjust the choke to where it is as loose to the touch as yours is in this video. Does the choke only affect the car during cold starting or does it also affect it in some way while driving? I hope I didn't screw mine up lol.

[@evoTimer]

I need to rebuild the carburetor from a 1982 Toyota Tercel with 3A-C engine. Being a California emissions spec, it has a heavy load of vacuum lines. No joke. Luckily from factory, the mixture adjustment screw is sealed and no one has been able to fiddle with it since factory, so that part is ok. The problem Im having is that at idle the emissions are high (around 800, it should be no greater than 120 HC) it will not pass emissions test.

[@tonywalters9436]

Watching In Missouri A great video you did a good job explaining how and why the carburetor. Choke works

[@Feasle101]

Where did you get that giant light with the magnets on the underside of the hood? I want one!

[@01FozzyS]

Yes do tell Eric. Looks like a nicelight.

[@Noitom_]

I bet it'll be in an upcoming tool review

[@mitsulancer91]

Jb tools. Snap-on, Mac tools ect

[@mitsulancer91]

www.jbtoolsales.com/search.php?search_query=under+hood+light

[@richp38]

Eric, big old ford fan that vehicle is running perrrrrfecct, Nice Job.

[@CarminesRCTipsandTricks]

Aren't Carburetors COOL!? 😊💯 Instant gratification when set up right. Cheaper to run in the long haul than most EFI systems. One little note, you mentioned the Electric Choke Coil, and were 100% correct about it. You just didn't mention that it's only a quick warm-up system, for better economy/emissions. The Dashpot Tube, coming up from the Exhaust Manifold, actually supplies the heat to keep the Choke open when fully warmed up. I know that's probably irrelevant in this case, but since you do such a great job of educating the young guys, I felt like that detail was worth mentioning. 😉 Carmine ✈🚂🚙

[@lawrencehogan7204]

I would be interested in an updated vacuum reading. I believe that you said that you had found another vacuum leak. I know that she's an old car, but I wouldn't be surprised if your vacuum now reads around 20 to 22 inches of vacuum.

[@EPTRotorsports]

Intake vaccume means a strong intake stroke. A strong intake stroke can be influenced by a strong combustion stroke on another cylinder. So having good vacumme is a goid place to tune on. I use a wide band though.

[@jcb0249]

Question: Okay, I have a '73 Ford Courier (mazda b1800) I managed to get the timing 100% and cold/warm starts are no problem, but it will backfire once warm and when that happens it acts like it's not getting gas. I can post a video if it will help, but really need any help I can get. Thanks for all the videos Chris!

[@pd1jdw630]

For the winter, you might want to build a Exhaust ventilation System. They are not hard to build your self. but sure help in the winter :D

[@knucklehead4233]

Thanks for this video I didn't know that the thing on the back of the carburetor, choke thing adjusted by loosening the screws. That may be the problem with my inline 6 300. It's a start anyway.

[@RobertKohut]

Pretty sure the throttle solenoid is for the prevention of "dieseling" when you shut the car off. Basically the idle screw is set to about 450 and the solenoid is set for 750 + or - and when the ignition is shut off the solenoid retracts and the base idle is achieved preventing the engine from "running on". If the solenoid fails the car will still idle when started but will be very slow indicating a solenoid failure.

[@Tenkaichibudokai22]

You’re the guy!

[@ThunderHead289]

rut roh. now your getting into my video material

[@ElijahIan]

ThunderHead289 you invented the processes of how to adjust carburetors’???? WOW what a guy... yes I agree you should go around KZbin checking every single mechanic channel to see who has infringed your patented process... 🤦‍♂️

[@crabtime2116]

I have a 1968 Buick Special Deluxe and 9/10 times I shut it off it diesels or runs-on. Since I'm not incredibly automotivly inclined (especially about carbureted vehicles) I'm not sure how to fix it. I took it to a local shop and asked them to fix it since I also needed new brake lines installed. They said they replaced some parts in my carb and fixed my timing. That fixed the problem for about a week or so then its back at it again.Ive tried adding fuel additives, but nothing straight into the carb. I noticed it also smells like its running rich. Is there an obvious fix that im not seeing? I love this car and enjoy driving it, but its a real pain when I get home from work at 10:00pm and it starts making a huge racket. Id appreciate any ideas that might help fix my car, and thanks for taking the time to read all of that.

[@tieulambachnghe7958]

Shop Ba Dậu Expert: Fixing and renovating carburetors of all kinds of cars Address: 256/38 Nguyễn Tiểu La, Ward 8, District 10, Ho Chi Minh City, Viet Nam. Phone: [phone]. Email: [e-mail] Expert: Fixing and renovating carburetors of all kinds of cars just only in Viet Nam. But start repair work must have the car. That is impossible.

[@caterpillarkiller1970]

Very very good video! Very informative and thanks for going over all the steps.

[@itrstt66]

could you make a video on idle cut-off solenoids on carburetors?

[@nijloveanugelu]

Nice to see old technology brought back to life.

[@guyrelax]

Do you have any recommendations for tuning triple mikuni phh at 6,000 foot elevation? I'm in Denver and have a '74 Datsun 260z

[@CAPTAIN-xr2wk]

7:20 - idle mixture screw/vacuum

[@TakeDeadAim]

The carb should be the LAST adjustment in the "chain". If you have a car with adjustable valve clearances...check those first. Second is any emission equipment. Move on to ignition timing, then carb adjustment last. Remember...on older cars use timing specs as a guideline. Don't simply set it to a published number. As these cars age there's "slop"(as noted in the timing chain)especially in the dizzy, so the timing will change as well.

[@smh9902]

I don't have to worry about that. I have timing GEARS!

[@vernonsteinkamp1088]

Also something I ran across is a week coil, which in turn will not give a sufficient spark to burn the fuel.

[@TheDeadMan3848]

Beautiful ride Bro !

[@davidjackson2115]

Good pointers, but Im looking for fuel mixture not idle. Im surprised you didnt do what i do with empty bowl - tip a cap of fuel down the carb to save battery and starter.

[@zochpeter]

I always set idle mixture with COLORTUNE, never thought of doing it with vacuum gauge. many thanks for this hint!

[@kingsoulsurfer41]

I have an 87 Jeep Wrangler are you familiar with Wranglers it was the first 87 computer and I bought the Jeep and these mechanics rip everything out now I'm trying to fix it myself with the electronic choke and I hope what you showed me on the video will help me

[@erickirklin2962]

Ok this is a great vid. I have a 64 F100 that has a crazy (lurch ) when cold . Manual choke 2100 autolite carb. I am going to rebuild. Timing and points are good. Thoughts comments, suggestions. What to look for when rebuilding. New to me truck, any thoughts would be welcome.

[@collinssherertz7101]

Great video! Looks like the exact same motor as in my 79 Granada. I noticed the EGR valve rattling towards the end when the engine is idling. Mine does the exact same thing. Its not connected to any vacuum source yet. Any thoughts on this inherent rattling of the EGR valve at idle? I know you hear it. Thanks.

[@rtfly193]

Great video. I've almost got mine dialed in (1970 F250, FE 360), but it dies when I step on the gas too hard. Will look at the accelerator pump and check for vacuum leaks (just one line for timing advance, shouldn't be hard).

[@stephen-oy8lx]

did you ever figure it out? im having the same issue

[@rtfly193]

@@stephen-oy8lx Leaky accelerator pump diaphragm

[@michaeledwards8051]

When you say a "cold engine" or "cold start" are you referring to temperature or first start of the day or first start in hours? I just got the truck two days ago. Choke butterfly is all the way open 1st thing in morning when hasn't been driven. It's summer, morning is still 80+°F is that "cold start"?

[@compu85]

Man, installing a clutch on that cooling fan would probably make the car much faster. Is there one that is easy to retrofit?

[@paulshobbyshop5416]

Im having a hard time with my cold idle and im missing parts for the electric choje so im going to go manual best option i see

[@RathJ13]

Awesome video, and it's going to help a ton when I go to adjust the Carter RBS in my Maverick this weekend.

[@Stantonesque]

If you have rough idle problems - will adjusting the fast idle screws fix this?

[@owlytv]

when you hook up the vacuum gauge for the idle screw where do you hook it up to is it the intake manifold or something on the carb?

[@DominiAeternum]

It looked like a port on the carb.

[@joegallardoelizondo5574]

Thanks man. My 84 f150 just got a carb kit but the choke adjustment needs work.

[@curtispohlable9208]

Did you ever get this fixed or figure out the issue

[@carolinawestern3875]

I've got a 65 Ford Bronco (6cyl/1Bl) I put on a new Henkyo model of the Autolite 1100 and it runs terrible. It cranks easy, but trembles and idles rough. Like it's got a misfire and puffs a little black smoke. Entire fuel system is new. Tank,pump, lines, etc. Also plugs, wires, coil, points. It had steel rims and new tires filled solid. That weighed 175lb's a piece and choked down if you tried moving. I removed them and it helped but still runs bad. Could it be the mixture, or floats too high?

[@jdgimpa]

The vacuum hose that you plugged goes to the bottom of the air filter housing on the sensor for the heated air door, of course you don't have any tube going to the door anyway.

[@samsh0-q3a]

Thanks, need more videos like this, I was born in the 90s had no car guys in the family that were still alive and I always wanted an older car because the new ones both look ugly and because I wanted to save some of our heritage and keep it on the road, that being said I didn't know jack shit about carburetors and this helped me understand the various components of these complex mechanical devices, carbs were always something I was really into just because I mean.. think about all the parts in it just to give these massive machines life, that is probably the coolest thing about them and you know one day this could be a lost art, terrible!

[@simbamudzinganyama4629]

hie bro hope u good.......you know what almost same situation 90's guy and always loved the old school ride though the knowledge part...hop yalz keep enjoying the journey ...peasce and love bro from Zimbabwe

[@MIKESbikes24]

this helped alot I just bought a Suzuki samurai and can't find any vacuum leaks but she idles to low

[@zZH4Zz]

Michael Sliwa my samurai idles too high! Around 4k. I’m trying to figure out what to adjust

[@OrionsKelt]

Eric the car guy videos remind me a lot of the powerblock shows I used to watch on spike TV when I was first learning about cars. Without all the sponsored content of course. Not sure if anyone remembers them. Anyway, production is great and so is the content. Love it!

[@fullraph]

That was the longest second gear i've ever seen lol

[@philiphapeshis1226]

I have a 1987 mazda b2000.I had no trouble starting in 20 degree weather my issue is high idle sticks .I have no buteterfly at all on my carb it was removed.

[@livndlife007]

Mr. EricTheCarGuy. At the end of your video, you mentioned hot start but never went into details for that adjustment. If the engine is struggling a bit on hot start, what is the initial adjustment?

[@JoanSeebalack-qx4bl]

Fuel pouring out that rectangle hole on the outside of the carburetor!?!? Thanks in Advance! Love your videos

[@markyevick435]

Thanks for the video. I have a question. I took apart my summit 4brrl carb and mixed up the nozzle bars. How do I identify which is primary and secondary. One has 2 jet looking pieces and the other just has 2 hole in the same spot. there is also 1 ball bearing and a rod that would sit on top of that then a hollow bolt that fit over that. Im guessing these fit with the nozzle bar with the jets?

[@kennyl3734]

Eric ,Did you make a tool review on your underhood led bar? It doesn't look like like the usual ones. Looks like it's adjustable for different angles?

[@misterdeedeedee]

i like carbs. they force you to (gasp!) know your car works and how to fix and adjust it.

[@Cragified]

So does fuel injection just two different ways of adjusting fuel maps. One does it by screws and stops the other by informing the ECU what fuel amounts should be entering the engine at certain conditions.

[@misterdeedeedee]

true, but all a carb needs is a screwdriver, and all you need to do is watch and listen until the engine sounds good. because of this anyone from 5 to 95 can do it and it takes 5 seconds to figure out what sounds good and what sounds bad. to tune an ecu you need a laptop, usb to obd/ecu cable, software, and knowhow on what you need to modify to get the desired effect. even if you have a laptop, the software and cable could run you $500 or more, not even considering if you have to get an aftermarket ecu or a base tune. i dont know many children or old men that can pick that up in a few minutes.

[@Cragified]

Tyler Gutstein Though one rarely does have to tune up an electronic fuel injection system since it is self compensating unlike a a carburetor or mechanical fuel injection system. Sorta like the gripe that modern cars have no room to work on anything, while older pre 80s cars had tons of room. Well you kinda needed that room since you had to do semi major work on a vehicle every 15,000 miles or so. One is more accessible but requires more maintenance (Carb/MFI). The other is less accessible but requires minimal maintenance (EFI).

[@misterdeedeedee]

well as someone who enjoys working on cars, this isnt a big issue to me. though i wouldnt classify checking and adjusting a carb and making sure there arnt any obvious damages under the hood "semi major".

[@Cragified]

As someone who collects vintage cars and maintains them I can tell you that carb adjustments are just the tip of the iceberg of what you have to do with older vehicles to keep them in good running order :) Head gaskets, main seals, etc. are all things that require some disassembly and thus room to work. Greasing points, etc. something that most people don't even realize once existed due to sealed joint assemblies being the norm today.

[@brucey39]

Question ? I have a 91 ford spectron . On a cold start it will fire up and idle but as soon as you hit the gas it bogs down strait away .I have to gently feather the accelerator to get it warmed up and revving normally . Takes a few minutes for it to warm up so I can drive off without it cutting out . Once it's warm it start and drives normally although it still bogs slightly on acceleration in the lover revs .

[@sandydogy]

one thing that confuses me is with a throtte body the gas pedal alters air? and so does the choke? is this because it is fuel injected with a throttle body? I am confused? Thanks from Ian

[@donaldmyers271]

I’ve got a 65 galaxie 500 289 I put a knock off replacement carb on it 2barrell when I snap the throttle it seems to take forever to wind back down the rpm any suggestions

[@elcellalo9547]

My 1981 cutlass supreme has flames that come out from the carburetor and it only stays on when i hold the gas. What can i do?

[@ChamathPalliyaguru]

Can you check for the functioning of the secondary throttle by revving the engine (looking the movemet of the secondary throttle plate)

[@blakenorman4822]

How did you ground the coil exactly didn't quite see what you did after you took wire off coil Just brought a 87 dodge ram home for $400 from junk yard, wouldn't turn over at all ran down starter system, had starter relay with ignition wire, battery, solenoid and ground wire, ignition and solenoid had continuity and battery had 12 volts, ground had no continuity hooked new ground to frame Turned over immediately, think someone junked cause old ground corroded somewhere and they didn't figure it out Replaced plugs and wires, it starts and only runs with gas pedal held down, took carburetor off rebuilding it, same carb as yours without hot idle and choke coil on mine is on intake manifold, cant believe I found video rebuild on my carb, thanks for video

[@tmacdagreattv]

on my automate 1100 , the choke plate is wide open when the cars cold , is that n normal, if not , how do I adjust that?