Motorcraft 2100 Series Choke Mechanism Adjustment

[@TJ-qz6hr]

After watching numerous other videos on the 2100 series adjustments, I’ve found that this guy’s video, is the only video on YT to watch on the 2100 series carburetors. Don’t waste your time on the other videos. Nice work sir.

[@vincentcitarella7322]

This is how an instructional video should be done. He speaks slowly, he’s concise, no stupid music and no life story. Excellent!!!!

[@wystock2692]

i second the motion...

[@richardbergquist3887]

I often think about this comment when watching stuff these days - no life story and no stupid music. I can't tell you how many clips on youtube I watch where I have to fast forward 7 minutes before the guy starts talking about what he's actually there to talk about.

[@runner3033]

@@richardbergquist3887 I was really wondering what Bill had for lunch the day he made that video though! /s My general rule of thumb is to skip the first 3rd of the video.

This is BY FAR the most informative and instructional video on KZbin on 2150’s! This helped me a ton to setup my carb’s choke the right way! Thank you.

[@TJ-qz6hr]

For sure, way better than any shop manual.

[@luisreza5586]

Amazing video. You should make another video about adjustments when the vehicle is warm.

[@ecesarchavez]

Best Motorcraft Carburetor video on YT!

[@JeffMedved]

BRILLANT! Carb adjustment had always been a complicated mystery to me. I fully understand everything now, and I am no longer intimidated.

[@pitholer]

Bill, I want to thank you for making a video which accurately describes how the carb works and you are articulate enough to use concise, descriptive words such as "relation" to make the adjustments make sense.

[@joshfoster_realtor]

Best carburetor video on the web! Thank you sir!

[@paulgolding2846]

Thank you for taking the time to make this. Your patient explanation really took the mystery out of the auto choke and helped me solve a few issues with my Mustang. Videos like this are the best reason to watch you tube!

[@JohnSmith-wj2wd]

This video answered all the questions that occurred when I spotted the auto choke for the first time. I feel like it went from a mystery object to knowing all about it.

[@RobotJustice]

Your clear, detailed explanation of how to adjust the fast idle helped me solve a problem I've been ignoring for years.

[@handlesR4TrackingU]

1st.thing. Thank You Mr. Robertson. This is the only instructional video you need. I know certified instructors who would greatly benefit from viewing this info.

[@robperkins2674]

I have to say thank you sir excellent video!! Helped me out a lot.

[@EMicky]

I have learned so much from this one video is insane how well explained all of this was.

[@ferdinand1x]

i feel like he's defending a dissertation on Carb operation. So informative, so eye-opening. Brilliant.

[@chadrech9230]

I have been battling trying to set up the 2100 on the wife’s 71 F250. Lots of info out there on set this and that, but I never understood why/how the relationship works. I can’t wait to start over on the settings this weekend and hopefully solve my issues. Fantastic descriptions, explanations and video work SHOWING each aspect. This is the only video that does it all concisely! Thanks for all the dummies trying to learn this!

[@olguenti]

You just saved me Hours of tinkering! Great Video!

[@adamsonofdon2766]

This was an excellent video. Thank you so much for breaking this down and being patient!

[@strife7333]

nicely done...was a big help getting my carb adjusted properly

[@pastorbrian700]

All of my life i always knew when an electronic choke worked & did not work. Now i have an understanding of how it actually works. I wasnt sure if anyone in the whole world knew how. Thank you 😊

[@angelsaing579]

I just wanna say this, your video is more educational, comprehensive and most relevant THANKYOU big brother

[@DaleLumbra]

Absolutely amazing video THANK YOU!! My ‘70 Bronco thanks you as well

[@toffchain]

Thanks for the great video.

[@wyatt350]

You sir are a genius. This is exactly what I needed to know. Very complete, and to the point. Thank you so much!

[@georgemurphy9910]

👍the same set up on a 4350 four barrel, Motor-craft. Thanks you

[@rauljg143]

Dang. Incredible demo. Thanks a ton!

[@dennisbrown4966]

thank you for the excellent video on 2100 series carb choke adjustments. i will be doing some work on my 1983 mercury cougar 3.8 making necessary carb adjustments to get the idle correctly done.

[@bobbybutler3297]

This is the best explanation I have seen. My 72 f100 carburetor has both choke pull offs? Which one do I use or both?

[@paulosalva552]

Great help !!! Thanks a lot !!!

[@skjoldgames]

Man, I've been fighting Motocraft carburetors since I was 16 years old and you just clarified what has mystified every mechanic I've ever talked to about this. Thanks!

[@cliffneedles7793]

Stumbled across this video, and now all my choke questions are answered. Going to tinker with Motorcraft 4300....Thanks so much

[@ConstructedMatter]

This is the best carbonator instructional video I’ve ever seen. Thank you sir!

[@larrytaylor4646]

Do you do a video on tuning the carburetor with a vacuum gauge? This video was excellent.

[@TheCornmencita]

Bill Robertson, In just a few minutes of your video, I learned more than just from reading all the Carb Rebuilt kit instructions, all the youtube videos, and all the websites calling themselves "pro". I believe that people just don't want anyone to understand or they just don't have the ability to explain the topic. Thank you for the calmness and professionalism you shared. So much appreciated Best regards, Raf

[@patricsontrop2419]

very instructive video, but I still have a question, my Autolite 2100 has a solenoid, I don't know where it belongs and what it actually serves for, now I have removed it and the car still starts normally I would like some explanation about that

[@mehatestaxes]

Bottle this guys blood for the future generations.

[@caribbeancoastalinvestment3706]

Thank you - Finally a clear and full description and video showing how this works. I now think I can fix my choke issue. Where is this guy, I'm subscribing.

[@jonbennett3946]

Has to be one of most detailed explanations ever

[@timmibaldwin7469]

Outstanding video!! That is exactly what I needed to know!!!

[@johnfuller8872]

WOW, very awesome video. Great teaching sir, very easy to understand. For the first time I actually understand the choke and fast idle stuff and now feel comfortable tomorrow morning setting it on this truck I'm working on. Thank you very much for your time, God Bless!!

[@marcelmuller9287]

Y O U ARE A W S O ME !!! Bought a new 2100 for my 66 Mustang. It went well a while until I moved to a colder place. Got several "mechanics" on it to recover cold start behaivior - no one could realy improve it. But after watching your instructions I did it and it works. Great video. Perfect. Thank you

[@provolonecp7526]

Perfect video, great examples didn’t talk to much and I truly learned a lot that I’ll remember time to go tune my choke!

[@sirtrollsallotthe2nd126]

great vid bud...you got my sub,easy to understand and no shit music blaring in the background.i think you are a great teacher .cheers

[@Rigs__Rigs]

Only 12 minutes in. Absolutely awesome video! Thank you for doing it. I subscribed!

[@Donny.C.wlWilliams]

Best video ever very detailed and when applied works! Thank you sir

[@shuarchenegerhipopotamos691]

Excelente explicación gracias amigo saludos desde Morelos México

[@iancummings459]

Great video. However, I'd like to add some info to the choke cap portion. Bill's correct in that adjusting the cap will change how long (time) the fast idle is engaged. He doesn't really fully explain the why. As you know on OEM caps there is a rich and lean directional arrow with rotation. So both are correct. When turned counterclockwise Bill correctly indicates that the warmup time will be longer. The "why" is because the butterfly will be closed more, thus providing a richer environment which correlates with the cap directional arrows. A richer environment does not burn as hot and therefore will take longer to heat up exhaust temps and this longer for the cap thermostat spring to expand and longer time spent in fast idle choke. Rotating the cap the other direction (clockwise) will thus decrease the warmup time. Bill is correct here too. The butterfly will be open more and thus a leaner environment will be created and correlate to the cap arrows. A leaner environment will burn hotter and exhaust temps will rise quicker, shortening cap spring expansion time and distance. All in all, a superb video for explanation of the 2100 and 2150 function!

[@jettcalimyrna729]

Thanks so much! Very helpful! 🙂

[@annaricklisk8740]

Thanks so much for explaining how these 4 adjustments work. Very well done! :)

[@roadsidecamper]

Thank you so much for posting this. Would have never figured this out unless I spent some serious time researching this and experimenting. Wanna keep the old ford going for as long as possible.

[@isaaccameronchacun261]

This is actually a really good video

[@moisescarrasco9870]

Thank you for your good explanation. You didn’t miss any step. A full clearly video. Thank very much.

[@robperkins2674]

So good can’t say it enough

[@todotuyo5234]

I have no words to discribe how well this video explain the automatic choke. Best video on utube take it from some that learned all of that back in 1976 from my uncle who had a carburator shop and I worked at his shop working only on vehicles with carburator problems

[@Notafordguy]

I appreciate you taking the time to share this great information. I wish the whole internet was like this. Thanks you.

[@StevieV64]

Thank you Bill, you shared a log of light on the operation of a 2100/2150 carburator and how to adjust numerous of things i never fully understood. Greetings from the Netherlands

[@mikebrown1479]

Excellent video!!

[@markadams5285]

Fantastic video! Thank you helped me a lot!

[@casevanjaarsveld7961]

Just the best instruction a person could ask for on setting up a carburetor !!!! THANK YOU !

[@angelmalvarezart]

Wow this is exactly what I needed. Thank you so much for this explanation. I have a 66 mustang and I needed to adjust the choke at start up. This is super helpful

[@bryantroyster59]

I dont normally comment but thank you. I've always had trouble understanding choke adjustments and everyone has their own method but you gave a complete breakdown and understanding. So thank you and great video.

[@leerleerdrinkabeer]

You’re awesome! Best carb video ever! The only thing is, could you demonstrate the actual proper settings of those excellent explanations you made in this video? I now understand the basics of setting screws in each area but the actual setting they need to be at for a proper general set up would be really helpful even further. Thanks for sharing your knowledge about this topic!!! Just at basic Fall into Winter setting vs a Spring into Summer setting. That would help tremendously!

[@fordinlinestraight]

By far the best video describing the 2100,2150s and basically the function of all carbs. Thankyou subscribed.

[@harrypressman2]

Thank you thank you Bill. I will be readjusting my choke this weekend. I finally understand the mechanics behind this crazy carb. And hopefully my car will finally purr.

[@pauljr.880]

Thanks for this Great video!

[@larrystadnyk4560]

I wish all videos were this slow and educational. You can actually follow Bill in real time.

[@1307bubba]

This is one of the best instructional videos I've ever seen. Thank you for great presentation

[@charcoalhobo]

Thank you so much for such a detailed explanation. Super helpful.

[@hanginwithj]

Thank you for your thorough tutorial. This is the kind of video technical schools should be utilizing. Thank you! 🤘

[@Nervzwerg7514]

Great video, very good explanation. What I’m missing is a step by step procedure, because I find it quite hard to get all the linkages work together as intended. My problem is, if I set the choke housing to specified mark, the opening after stepping on the throttle and the opening under pull off, the flap doesn’t fully open when hot. Also, the engine dies for a few tries directly after startup.

[@randycarlisle6814]

I'm having same issue with mine. Or on the first press of throttle, it won't fully close the choke plate.

[@jeepsblackpowderandlights4305]

F8nally a video explaining it in detail and easily for a newbie to understand.. thanks. I rebuilt my 2100 but for months i couldnt het the choke or fast idle to work right.. everyone else doesnt explain it very well

[@drumrooster]

What about the little tube that runsfrom the exhaust manifold to the back of the cam? Do I need it on a 2150 or just the voltage Goin to it?

[@SonOfAHerbert]

Thank you Bill! I’m sure your videos will help my get my old f150 running better

[@RS-of1om]

Good Detailed Video Bill. Thank you

[@pookie4660]

Great details and explanations. Thank you and thank you!

[@leightondaney7178]

Very well done Bill! I will get to work on a choke that is not opening onthe start up cycle (1981 Jeep CJ5 V8-304 MC2150)

[@DanaBillingsley-q9k]

Thank You for a perfect video on the choke. All the positive comments below are true. Good Job.

[@Scrapy-ih7ob]

Prefect explanation why I have to force my choke closed on NEW carb.. till it warms up... (in other words) don't let relatives adjust your new carb when you first put it on. so now i can adjust this tomorrow so it works properly..

[@scotthanson7888]

Excellent, thanks. I realize this is years old. My 1980 f150 351 m is doing great

[@williamlott7612]

Very informative, just what I needed. Darlington, South Carolina

[@dougschindler7976]

this is the best video I have seen on this subject,,,thank you

[@ProdJp-xq2qj]

Great video helped me understand

[@Soundofcats99]

Wow, that was an EXCELLENT explanation, thank you!!!!!

[@mylesdenny7981]

Excellent video,you explain it so well. You have helped me understand how it works. Thanks

[@Anonsage3]

Absolutely perfect presentation

[@ovalfastlx6724]

Thank for the video. The info you provided helped out alot.

[@zestamaster]

Absolutley perfect, thank you so much!

[@upclosereviewname5235]

Best video discussing these functions, thank you so much..

[@dkhallal]

Outstanding!! Exactly what I was looking for. I have one question, where should power for the choke cap come from? Mine is hooked up to an ignition source so it’s hot after the key is on and stays on which I imagine would fry the plate after a while. Thanks for your excellent teaching. I will look for more carb videos as my 89 YJ with the 2150 needs a bit more tweaking.

[@gadflygames]

Thank you, Sweet Baby Jesus, for this video!!!

[@joegarrett8166]

Great educational info! I have a 1965 ford that has a 1962 or 63 2100 series that doesn’t have the vacuum pull down like your example. Is it internally operational or is there linkage on the accelerator side that adjusts it???

[@davebartoy2732]

Excellent video !!! Thank you so much. This is just what I needed.

[@rmbb1981]

One of the best videos on here

[@jimrusher4896]

Great video - is there a document that provides the measurements for the the initial setup of all these adjustments, or is it trial and error?

[@ecesarchavez]

Amazing clear video thanks for sharing! Now if you had one on tuning a carbureted engine for best daily driving performance that would be so helpful

[@primecrisp]

Awesome video super helpful and well explained 👍

[@yeboscrebo4451]

Excellent attention to detail.

[@sgtbaxman6720]

Excellent video. So well done. Very (VERY) thorough, informative and easy to understand. THANK YOU!

[@pl747]

And some of the older ones had a heat riser tube from the intake manifold to the choke that you did not cover.

[@Michael-e1r3m]

Yes that’s what I have on my 65 289 2100 carb and I’m getting vacuum at the thermostat housing when I remove the hot air tube. Is that normal? Other than that my carb is dialed in pretty close sometimes it dies after initial start up but usually with another pump of the the throttle it idles pretty well at about 1600 rpm and after driving a few miles it comes down to a respectable idle

[@pl747]

@@Michael-e1r3m no should be no vacuum there.

[@Michael-e1r3m]

@@pl747 where could it be coming from, possibly a bad seal or gasket inside the choke assembly? I saw a brief video of the inside of the assembly and it looked like there was some sort of rubber plug that moved against it when the linkage moved

[@pl747]

@@Michael-e1r3m i don't know because the heat riser works off the exhaust side

[@Michael-e1r3m]

@@pl747 yep that’s my thought Possibly a crack somewhere but the car runs well I guess I’ll pull the thermostat off and try and run it to see where the vacuum leak is coming from

[@CarlyMetal]

Wow, very good