How a 2 Stroke Carburetor Works, Fuel Pump & Metering
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- čas přidán 29. 08. 2024
- In this video I explain how a 2 stroke carburetor works. I have 3D Printed a large scale model to make it easier to see. I also 3D Printed sections of the carburetor so you can see the internal workings.
This might be the single best CZcams demonstration video I have ever seen! All I can say is wow, you have really knock this one out of the park! Major props on designing and fabricating that demo carb! The time and thought you put into the model is absolutely astounding! Bravo sir, bravo!!!
I instantly subscribed as soon as he pulled out the 3d printede model 😀
Amazing great detail thank you sir !
I'm saying... He definitely knows his business
Really great video. Thank you!
Great! Great job indeed👍🏽👍🏽👍🏽
MAN! You deserve the Nobel prize award. This tutorial should be shown in all mechanical schools worldwide. Very well done.
Unbelievable. Just absolutely mind boggling the way that you built that full-size model. I’ve been tinkering with these carburetors for about 30 years not really knowing what the hell I was looking at but now I completely understand them inside and out thanks to you. I’ve watched this video about four or five times. Absolutely amazing.
This has to be one of the best instruction videos I have ever seen
I am nearly 70 and it has taken me until your unbelievable video to understand the "simple" 2 stroke carb! your printed model just blew me away! Thanks for the incredible amount of time and effort you have put into this Jay, I am forever grateful.
Great demo
Amazing ! Thank you !
You have gone to unbelievable lengths to demonstrate the principle of this carburetor. I take my hat off to you. You are a real engineer sir !!!
Dude this deserves like, national recognition. This needs to be used in any educational setting for mechanics. Best video hands down
This is hands down a most awesome video. The time and attention to detail is astounding. These carbs are so small, and so difficult sometimes to understand what is going wrong, but now the mystery is so clearly explained. This video should be a requirement for any one working on small engines. Thank you sir.
Thank you! Many, many hours spent with precision measuring equipment and a microscope to get each part exact.
A agree with Stella and Kenny. This is an awesome explanation. Thank you for your excellent content
I agree 100%
agreed
@@WilliamFrawley Would you mind if I promote this video on my channel? Everyone needs to see this!
One can not watch this video and not leave a comment. The sheer amount of effort and detail that went into this project is amazing. This is the best video on the internet to explain the workings of a two stroke carburetor. Well done to the creator of this props and video. This should end up somewhere on a site where they teach the basics of petrol engines. Yet again well done!
Oh really? I'll show you not leaving a comment! oh wait.......
Holy moley. That's the best carburetor explanation in the history of mankind.
Walbro should adopt this video as their main (and only) tutoring source to educate their engineers. I am a retired computer engineering prof from a local university, and I can vouch that this is an amazing piece of work done by Mr. Gould. I searched in the internet to get a good understanding how a Walbro carb worked because I wanted to learn about RC gas engines, but couldn't find anything substantial, just bits and pieces of info published by people who didn't know the entire mechanism. Finally, I started examining Walbro diagrams on Walbro website, trying to figure out the exact mechanism. I found out most of these diagrams were sketched for people who were already very familiar to Walbro carb, but didn't make too much sense to me (or novices that don't know too much about carbs). I am glad I stumbled across this video. Thank you again.
I'm late to the party but this literally was one of the best explanations I've ever seen. I can't believe you took the time to make that huge 3d printed model. It's all amazing work!
This has to be the absolute best explanation I've ever seen. If I had been able to watch this 25 yrs. ago it probably would have saved me a lot of head scratching as I learned this on my own. Thanks for sharing. Love the large scale printed carb.
Thanks for taking the time and effort to create a video that shows you are a kind man
Agree this should be one of the how to understand 2stroke carbs, in schools everywhere, hats off to you sir!
The BEST(!) video description EVER of how these small 2 cycle carbs work. Thank You very much for all your hard work, (and many hours of 3d printing)
This should be the gold standard for any You Tube instructional / tutorial video. You have done a great job explaining in very clear terms and your 3d prop is an absolute work of art. Thank you for sharing this video.
Can you imagine having the knowledge, curiosity, tools, skill, and eloquence to be able to complete a video like this?
I’m blown away and if this creator hasn’t already been snapped up by a major hardware company I’d be very surprised.
Awesome! This is the best teaching video on you tube. Straight to the point with no unnecessary ''Fluff' and no beating around the bush. No distracting background music. Appreciate all the work in 3D printing the parts. YOU TUBE, are you listening or seeing this? -GIVE THIS GUY AN AWARD.
I must watch this a few more times to let it sink in fully. All my life I have been almost blindly opening up carburetors and trying to get then functioning again. Sometimes with good results and sometimes with failure. I'm 62 now, pity I didn't know all this when I was 22. But however I have a walbro fueled chainsaw that dies out when accelerated and perhaps I can put this information to good use tomorrow. Thank you very much for this most informing tutorial !!
That is the coolest 3D print I've ever seen!
This guy deserves one of those film awards they give out in Hollywood.
Those enlarged 3-D printer models are brilliant. This is the first time I got any real understanding of how the tiny carburetors on 2-cycle garden equipment work. Lots of repair-tip videos out there, but nobody else takes the trouble to give the overview and explain the details of the fuel delivery cycle. For those who want to understand what's really going on inside these little marvels, watch this. Chinese factories may be able to turn them out today for $20 (I just bought two), but it took 150 years of creative thought and engineering to design and develop them. Appreciate that the next time you pull that starter cord.
I think we need to vote you as the best you tube instructional video of the year,what else can you teach with your over grown visual aides
I wish I had seen this earlier, it would have saved me from watching dozens of other videos. Best tutorial ever!!
I just HAVE to comment again!
I knew virtually nothing about my gas string trimmer until I watched your video. Now I feel that deep dirty carburetor secrets have all been revealed. I understand what makes it tick!!!
Thank you so much!
Absolutely fantastic tutorial and 3D printed models! I'm Technical Director of a company that manufactures 3D printers and the time and effort put into Jay's 3D models is enormous, hours and hours of work needed to design and produce these models. Jay, you're a credit to engineers everywhere and your tutorial is 5* Thank you!
PS. I repaired my chainsaw because of your detailed explanation of the debris gauze at 6:42 on the tutorial - mine was so blocked up that I thought it was a 'plug' and not a 'gauze' which it proved to be after closer inspection and cleaning !!
As a former Auto Tech instructor at the college level, That was amazing.Not only did you answer every question I had, I learned more. You also kept my attention going to gain more knowledge. I loved the props you used. Well done sir.
I cannot appreciate enough the effort you have taken to explain the operation of 2 stroke carburettor. Amazing work. This is a 'gold standard' training video.
Now he needs a giant 2-stoke engine to complement the giant carburetor. Seriously though, this is an AMAZING explination on how a diaphragm carburetor works, without the need for me to take apart mine and then never figure out how to rebuild it. So thanks for your effort on making this whole video man!
There are tons of CZcams videos about how a two stroke carburetor works, but this is by far the best one. That upscaled model is a great help to understand the principles . Thanks a lot !!
A phenomenal lesson in chainsaw and weed eater carburettor principle and practice. Your models and props are better than anything I have ever seen before as teaching aids and your knowledge and calm systematic explanation is easily understandable. The preparation invested in this short class is mindblowing. Thank you so much, if I had received tuition of this quality at school it may well have changed my life.
Best teaching video I've ever seen on any level and I've been doing this for over 30 years kudos To this guy you can't ask for anything better than this you can't even pay for classes this good
Not only do you understand and explain carburetors very well, but you are an artist making those models! Many thanks!
Amazing show and tell. You are an amazing teacher!! Anyone lucky enough to have been been a student in any form has been truly blessed. You are a hero.
Thank you. I've been stripping these down for a couple of years on my garden equipment and just cleaning them the usual way and blasting through the holes with carb cleaner and compressed air and fitting new consumables, then most of them work , but now I've got a difficult one to fix where that's not worked and after watching this, I know where the problem is likely to be. This weekend, I'll be out there taking a closer look in the affected area.
Update after a bit of time on the healing bench, its fixed !! The idle jet passages had a partial blockage
I've had a general understanding of and worked on small engines/carbs my entire life but have never seen such a comprehensive explanation and so efficiently done. This was flawless. Nice work 👍
I could write a page full of accolades and praise for the work you put in to create this video - Or just simply say, Thank You so very much!
I’ve been teaching for almost 30 years. And this demonstration is just epic! Unbelievably good.
Amazing!!! Your the best. i have never left a comment, probably never will again. If i had money I would pay you. I have spent hours watching carb videos today. I do not need to watch anymore this is all anyone needs. Excellent, absolutely Excellent
Thank You.
This may be the finest video I've seen on CZcams. Thank you for spending what I'm sure must have been countless hours to do this.
Wow! This was the best description I've ever seen. You just made me a smarter man. Now when I have carb problems I'll know exactly what to look for!
Jay Gould, you are a student of the game sir. I have a fair idea of how much went into this, and I am truly impressed. Well done.
If this gentleman had been a teacher when I went to school, there is no doubt that I would have payed better attention. I had subscribed before he had the small carburator laid down on top of the 3d printed large one.. I thank you for this
I'm like 5 minutes in and over paused the vid to write this and say you are a legend! That 3D model is incredible and the way you explain how everything works is so easy to understand. Thankyou so much dude!
I totally agree with "The Lawnmower Lady" and "David Mansfield". Your desire to educate others on something that is very hard to find information on is astounding, and your attention to detail and accuracy is almost beyond belief. I want to thank you for your efforts. I plan on using 2-cycle carburetors on 4 cycle engines, because the 2-cycle carbs can be set up as down-draft instead of the normal side-draft, allowing a longer intake manifold for added fuel mixture velocity. I was concerned with how to operate the pulse fuel pump, and to complicate matters, I confused the fuel metering diaphragm as the fuel pump. I plan to use a stainless steel tube inserted into the exhaust manifold so that the high velocity exhaust gas will create a vacuum in the SS tube which will go the the fuel pump pulse tube/entrance and pull the diaphragm against a spring to complete the push-pull action. After seeing this video, I now know that I can do it. Thanks again!
This is the coolest thing ever! I basically knew how a chainsaw carb works, but the fact that you made a giant model is so awesome! The cut away of the tuning screws is particularly interesting for me.
Edited to add: EVERTHING is perfectly color coordinated too, even the shiny crome metering side cover!! I can't believe it.
All I can do is to agree with all the other comments. This is a fantastic tutorial. The large scale demo is a work of art in its own right and the crystal clear explanation you provided with it makes this video one of (if not the) best I have ever viewed. Thank you and well done.
You put my faith back in CZcams training videos. Awesome detail. Your explaination of the fuel delivery solved a lot of mysteries. Also, don't forget the other 2 holes under the welch plug for the low speed side are progression ports. They bridge the gap between the low speed (idle) and high speed. Thank you for an outstanding job. Cheers
The Gas remote control , cars, planes , helicopters and boat enthusiasts would be astounded to know this much knowledge and they could completely appreciate the detail of skill your work and explanation efforts you have gone too. Thank you and God bless your talents you share. Wow...
I have watched many u tube videos from different channels that either do not really explain why they are doing something or show a very basic understanding of why they are doing something. But your clear explanation of basic principles is amazing. If only other "EXPERTS" demonstrated such depth of understanding as you obviously have.
You are a legend and deserve a medal. Thank you for the time you put into this. When you pulled out your printed model I was floored at the level of detail and construction. Thanks to you I now have a better understanding of this highly complex part.
Your model making and understanding is unsurpassed
Excellent Teacher. Plain, articulate, zero “filler words.”
As for the demonstrative you’ve created?
It’s hands-down beautiful. Seriously well done Sir.
Your passion is contagious and inspiring.
Glad it was helpful!
Amazing! The 3D printed model(s) are a work of art that give all us visual learners a clear picture of the how the Walburg works in intricate detail. Thanks
Walbro not Walburg
Thanking you very much for this explanation and thank goodness you have a 3d printing hobby to make demos easier to understand. Glad you took the time!
Самое наглядное пособие по работе мембранного карбюратора и лучшее, что видел в интернете, благодарен автору за его творчество и обучение.
I knew bits and pieces of how it works, BUT this explanation and the cutaway model, your detailed explanation cleared up a lot of grey areas I had for years. I'm angry that I've spent so much time in years past watching videos without the detail that you presented. This video should be the number 1 search result on YT. Thank you for your efforts and what a fantastic model you made for this!
Absolutely amazing. I am a time served mechanic and this video has helped me understand these marvel of a carb finally. Brilliant
More people need to see this video.
Your illustration is wonderful!!
The model you made must’ve taken a very long time to make but was well worth it!! I hope there are other videos with different types of carburetors on your channel. I believe you have explained this very well. Thank you
Wow, just wow. Thank you for the best explanation of the workings on how these carbs work. The 3d printed models and your clear explanation makes perfect sense. You really should be commended, thank you again
Thank you so much for taking the time to explain in normal language and make 3D perfect example!!!!!!
Ya, as others have said this is the best cutaway and explanations of small engine two stroke carbs I think I've ever seen. Really good job, you really took some time to do this.
So glad I clicked on this video. I think I might be able to get my 2 stroke working again, thanks for making and posting this video.
Sir. This is the EVER best Walbro carb demo I have ever seen. Thank you so much for a fantastic excellent demo job.
Durn! I've been rebuilding carbs for years and this is the best break down I have ever seen by far. It has given me a new understanding of things that can go wrong and how I might fix them. It also lets me see what I should expect to see when doing things like squirting carb cleaner in the various holes. Walbro carb are very common and the clones work just the same with minor variations. I owe you my thanks. Next time I lift a brew I'll toast you.
Simply incredibly technical content…the level of detail in the magnified model and cross sections truly there comprehension of the integrated system for even well versed individuals. Thank you so much!
Thanks for your hard work, meticulous attention to detail, skills, and your intelligence to produce that model in every detail, then to understand what the hell is going on in there. Bravo
This is absolute the best teacher of 2 stroke carburator detail's. Please let me know where i can donate. You deserve it. Thank you so much for all your effort to teach us🙏
This is hands down the best most detailed explanation of how a two stroke carb works Excellent job.
Amazing job on everything in this video. Your explanation is clear and understandable, and the 3d model with the different view points was incredibly helpful. Thanks for putting in the effort to make this; it feels awesome to really know what I'm looking at
This is outstanding. Never saw anyone explain something so well. You should win a CZcams video of all time and be in their hall of fame. Thank you!!!
You are a natural teacher with 3d printing technology to aid you. This is an excellent video now I know how this mysterious device works. I know snowmobile carburators and have disassembled them countless times but this video is the best at explaining a chainsaw carburator.
Thank you Jay for all the time and effort you put into this amazing video. I am 67 and have been tinkering with these carbs for a while now and could never understand how they worked, until I found this video!! Thank you so much again!
Honestly, one of the greatest youtube videos I've ever seen. I've been working on small engines for years, learning everything I could, but I never truly understood the inner workings of a 2 stroke carb. This is amazing.
Amazing giant model and perfect and beautiful explanation of how all the parts function, including all the drilled passages of the idle jet ports, especially the idle ones in the sidewall of the carb throat. The tiny idle drilled jets are usually the real troublemakers as they are subject to being easily clogged, causing stumbling and stalling when the engine is just coming off of idle. Bravo.
Wow. That’s the best explanation I’ve ever seen. What an awesome job you have done explaining the hole process. And an awesome job on the 3d enlarged models to explain the operation. You should get a gold medal for it. Extremely impressive. Thank You
Dude! Best explanation I've seen. Must have taken a lot of hours to put this together. Thank you! The only thing I missed was where the low speed fuel comes out into the throat of the carburator.
Thank you! I've never really understood what was going on inside these little mystery boxes. This is an amazing video.
What an awesome video. I'm a 57 year old disabled vet trying to learn a new trade with 2 stroke engines such as weed eaters, chainsaws etc.. I've gotten my bronze through Stihl but have a ton to learn. I believe I could sit down with you and ask 100 questions. Thank you for sharing sir.
This is without a doubt the best CZcams video on how anything works that I've ever seen! The 3D Printed models are amazing and they (plus your excellent and easy to follow narration) make it easy to understand exactly how these carburetors work. Thank you for all the time, effort, and skill you put in to making this amazing video! I am now subscribed.
Incredible....CZcams should give awards for instructional videos. You would win. Thank you.
This gives a perfect understanding of what is going on inside the tiny carburettor !
Thanks to this incredible video, I now know the life of a two-stroke carburetor. My humble thanks sir! This is what the internet is for.
Can only echo the other comments which commend your excellent 3D modelling skills and detailed explanation of the Walbro carb. A super learning video. Thank you so much.
ABSOLUTELY OUTSTANDING!!!!!!! You are the man. Very well done and opened my eyes and understanding on 2 stroke carburetors. Thank You.
Wow! You are a 3d printing legend!! Thank you so much for taking the time to make such a detailed video. I really appreciate the time and effort spent making this demo. Thank you!
Absolutely, utterly brilliant work. I have to service chainsaws as part of my job and this has helped so much! Very grateful for all the hard work you put into this project. Just brilliant!
Sir, this is hands down the best explanation I have ever seen. I can only imagine the time you put into making the model. I love working on my own equipment. After watching this video, I finally understand what's happening. I thank you.
Well that was as good as any carburetor lesson as I have seen in my four decade career! Thank you. Also, yes I subscribed
Honestly this video left me speechless..where has this been all my life!? You did an absolutely amazing job articulating every detail and making it so easy to understand... Thank you for making this impeccable video!
Best video am seeing hands down. Using that 3D printed carb makes it so easy to understand what goes on with it. I wish there'd be more vids like this that trouble shoot my Stihl weed eater. From the screws and their placement to the proper operational specifications. Thanks a lot Sir you are a master teacher👍🇯🇲♥️💯
What can I say that hasn't been said in the comments below. I hope that when you have some free time from your day job as an engineer (I'm assuming that's what you are) , that you're spending a day or two a month teaching at the local Vo tech school. The world needs excellent instructors like you. Thanks.
Dude, thank you for all the time and effort you put onto this video. This is the best demo video on CZcams by far.
Extremely well done. You take teaching to a new level with that 3-D printed model. I now know where to look to solve my chainsaw carburetor "fuel leak out through the exhaust port while sitting and not running problem". Thank you.
The way you made the enlarged parts and cutaways is amazing. It really helps to understand the different parts and the way it works..
Fantastic explanation and awesome 3d printed model!!
Those little carbs are quite complicated. Whoever figured all that out was pretty smart.
Thanks for the video
I really can't think of enough good things to say about this video, but I'm sharing it with all my buddies.
By far the best demonstration of how a 2 stroke carburetor works you put a lot of time and dedication into that thank you sir. This should help understand these buggers.
Extremely good video Sir.
When I was in vocational training we didn't have anything like your model of the carburetor, all we had was books and a instructor. I was a diesel mechanic but first 50 of us went thru a year of gas engines etc, then the 15 best out of that got into the diesel program if they wanted it, 40 applied but only 15 got in. MAN would we have loved to have 3D models and animation and internet stuff to learn with, but that's not the way life was in the 70s you did stellar with that model and lesson !!! All the best to you and yours Sir.
The details of this video are beyond any other videos I have seen. Thank you for the excellent explanation and efforts behind making the model. I tried to understand the workings of this carburetor by myself but it did not work. Great Job !!!
Thank you sincerely. After 45 years of tinkering with these things, I can say that I now, finally, have a pretty good idea of how they work.
One of the best explanations about 2-stroke carburetors wonderful work