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 TH-cam 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!!!
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.
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.
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.
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.
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.
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.
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.
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 !!
You put my faith back in TH-cam 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
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
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
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!
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!
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!
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.
This is without a doubt the best TH-cam 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.
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.
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.
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.
You really put a lot of time into this! Thank you so very much for the demonstration. That was very helpful! Incredible job! This was by far one of the best TH-cam videos I’ve ever seen! Amazing!
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.
I just want to say this is the best educational videos I've ever seen on TH-cam and I watched a lot of them. I don't normally leave comments but I could only imagine how much time you put into making up that mock-up carburetor and video editing for making this video. With out a doubt Great Job give yourself a pat on the back.
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! 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
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.
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.
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!
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
You sir, are AMAZING! To be able to print a model carb to show the fuel and air paths is just incredible. Hands down, the best I have ever seen. I feel like an expert now! THANKS!
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
Now this is how you teach people how things work, every detail covered and you speak at the perfect speed so we can understand what's going on. I have watched many videos on 2 stroke carbs and your video is the only one that explains every detail of how they work. Thank you so much for taking the time to do this for us. 😀👍
I’m more than impressed by the level of effort and perfection that went into this model and the explanation. I’ve spent plenty of time working on these carburetors and I learned a few things.
This TH-cam video was by far the best explanation of 2 cycle carbs of how they work and gives you an internal view from start to finish. I applaud the person who went to all the work to make an upscale size of the carb, this must have taken alot of work to get it to scale and so real like.Thank you for you time and effort in such detail.
IMPRESSIVE in every way!!! In design, manufacturing and ESPECIALLY your 3D scaling of the whole carb, ports, springs, just EVERYTHING!!! This is beyond anything I have ever seen for recreation and detailed explanation of the workings of a two stroke Wabro carburetor! I can't imagine the time involved making this. I definitely gave a thumbs up and SUBSCRIBED! WELL DONE SIR!!!
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.
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.
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🙏
Amazing! The larger replication must have taken hours or days to re-create. Thank you for your hard work! Excellent tutorial, I've seen nothing like it!
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👍🇯🇲♥️💯
This surely is the very best explanation of how a 2 stroke carburetor works and should be viewed and studied by all of the small engine mechanics and buffs. BRILLIANT SIR!
Fantastic work! You explained the functioning in a simple and easy to understand step by step way. The big scale 3D model is superb and what a great way to show practically how a small complex assembly works. Great credit to you and thank you for a wonderful and educational video. Top notch.
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.
WoW! The amount of work to prepare for this video is amazing. Best description I have seen. I learned why engines surge the other day and was impressed. This blows that description away (although that is still valuable). Thank you, I subscribed.
not sure why you don't have 10 million subs already......hands down the best lesson I've sat through in my 50 years of learning......thank you for keeping life interesting Jay......just magic!
Fantastic. Finally I get it. For you to take your time and make all these props and help out all of us is simply marvelous. Really appreciated. Thankyou, thankyou, thankyou.
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!
That was awesome way to explain the carb I've been working on small engines for a bite but never fully understood how that little carb worked thank you so much for this video I understand it now. God bless you.
I LOVE this video, this has GOT to be the BEST explanation EVER!! Absolutely incredible!! The detail that's on the 3D printed carb is absolutely incredible!!
Excellent explanation of how a carburetor operates. I've always wanted to learn this, you have made it so easy to understand. Astonishing and thank you.
Wow. Been trying to figure out what is my carb is messed up as it won’t prime with the bulb and came across this. Awesome 3d models and explanation. Thx!!!!
Outstanding! While I have experience with engines and carburetors I am not an expert especially with 2 stroke. appreciate the detailed yet simple explanation. the 3d print was excellent ad very helpful during the presentation. Thank You!
Hello, this video is incredible. I have never seen anything so well explained. Thank you very much for providing this knowledge. A big hug from Argentina.
2 Cycle is my weakest area in small engine repair. Your video is awesome. I know understand how it all works. You should be selling this to vocational schools that offer small engine repair as well as the 3D printed items you have>
Thank you so much Mr. Gould! What an amazing video. I have been working on some small engines trying to understand how exactly carburetors work. I wanted to make sure when I clean a carburetor, that I am spraying the cleaner in the right places. Having this understanding of where the fuel goes is so very helpful. Thank you so much for your time we’ll spent to explain the very complex inner workings of carburetors!
Are you aware that because these carbs (Walbro and Zama) have neoprene check valves in them you should not direct pressurized cleaners or air into them due to the chance of damaging a check valve. And no more hot tanking them. Zama recommends using carb cleaner on the outside of the carb body only and soaking the body in fresh gasoline if needed. Cheers
@@steadyeddie7453 Thank you, I could see the little transparent looking rubbery check valve that looked like it was not oriented correctly. The check valve was not in my carburetor kit so I just pushed on the check valve a little and it seemed to correct. I did soak the entire carburetor in gasoline for 24 hours after removing the ends, gaskets and diaphragms. I also removed the high and low jet needles and then sprayed Honda carburetor cleaner in all the holes and hopefully didn’t ruin anything. It runs now and I was able to get it running smoothly and without bogging on low or high end. At first the idle speed screw kept vibrating so much it unscrewed itself. I put some bearing grease on the screw to make it stay put. Now I need to address the massive over oiling and then clean, file, and straighten the bar, and file the chain and it will be ready to return to the user.
These are "Demand Regulator" carburetors. They are not necessarily specific to 2-cycle engines. Tecumseh made tens of thousands of four cycle engines equipped with them. The 1958 Brown carburetor was the first of this type. The literature on them mentioned that they were a simplified Bendix RSA aircraft pressure carburetor. In 1960 Tillotson bought the rights to the design. In about 1968 Walbro began manufacturing these "diaphragm" (as opposed to "float type") carburetors - and they worked really well. One reason they worked so well was that they incorporated a "main fuel discharge check valve" to prevent air being sucked in the main discharge when idling. For years nobody minded air being sucked in the IDLE discharge when the main was pulling high suction. Later Walbro and others (many if not most carbs used on Stihl) incorporated idle discharge check valves as well. (To my knowledge no idle check valves were intended to disassembled and repaired) A big problem with these carbs is the diaphragms become stiff and "oil can" in and out taking a set first one way and then the other. Walbro now has kits to retrofit clear diaphragms guaranteed to never stiffen (but they must be used with a matching super thin spring steel flat spring - it comes in the kit) Hardly any mechanics know that you should know how to check the piston rings, cylinder base gasket, crankshaft seals and even the reeds/piston skirt valves for air leakage if your initial disassembly and renewal of gaskets and diaphragms does not yield good running. It's like this kids: 1) Compression (which includes crankcase compression!) 2) Ignition - which includes spark plug. 3) Then if you have an engine with a dry carb in place that also EAGERLY burns it's prime - You can get it wound up and un-pinch the fuel line and see if you can get the carb to take over from the hand (squirt bottle) priming that you are doing. YOU ARE WELCOME
This might be the single best TH-cam 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👍🏽👍🏽👍🏽
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 !
Dude this deserves like, national recognition. This needs to be used in any educational setting for mechanics. Best video hands down
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.
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!
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.
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.
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.
That is the coolest 3D print I've ever seen!
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 !!
A very professional explanation of this cube carburettor. Please help this guy out financially if you can.
You put my faith back in TH-cam 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
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
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
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!
I’ve been teaching for almost 30 years. And this demonstration is just epic! Unbelievably good.
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!
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!
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.
This is without a doubt the best TH-cam 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.
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.
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.
I wish I had seen this earlier, it would have saved me from watching dozens of other videos. Best tutorial ever!!
Good sir - bravo. You actually create value for the rest of us. Much appreciation for sharing your talents and time.
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!
You really put a lot of time into this! Thank you so very much for the demonstration. That was very helpful! Incredible job! This was by far one of the best TH-cam videos I’ve ever seen! Amazing!
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.
I just want to say this is the best educational videos I've ever seen on TH-cam and I watched a lot of them. I don't normally leave comments but I could only imagine how much time you put into making up that mock-up carburetor and video editing for making this video. With out a doubt Great Job give yourself a pat on the back.
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! 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
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.
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.
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!
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
You sir, are AMAZING! To be able to print a model carb to show the fuel and air paths is just incredible. Hands down, the best I have ever seen. I feel like an expert now! THANKS!
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
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!
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!
Now this is how you teach people how things work, every detail covered and you speak at the perfect speed so we can understand what's going on. I have watched many videos on 2 stroke carbs and your video is the only one that explains every detail of how they work. Thank you so much for taking the time to do this for us. 😀👍
I’m more than impressed by the level of effort and perfection that went into this model and the explanation. I’ve spent plenty of time working on these carburetors and I learned a few things.
This TH-cam video was by far the best explanation of 2 cycle carbs of how they work and gives you an internal view from start to finish. I applaud the person who went to all the work to make an upscale size of the carb, this must have taken alot of work to get it to scale and so real like.Thank you for you time and effort in such detail.
Sir. This is the EVER best Walbro carb demo I have ever seen. Thank you so much for a fantastic excellent demo job.
IMPRESSIVE in every way!!! In design, manufacturing and ESPECIALLY your 3D scaling of the whole carb, ports, springs, just EVERYTHING!!! This is beyond anything I have ever seen for recreation and detailed explanation of the workings of a two stroke Wabro carburetor! I can't imagine the time involved making this. I definitely gave a thumbs up and SUBSCRIBED! WELL DONE SIR!!!
This is outstanding. Never saw anyone explain something so well. You should win a TH-cam video of all time and be in their hall of fame. Thank you!!!
Absolutely amazing. I am a time served mechanic and this video has helped me understand these marvel of a carb finally. Brilliant
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.
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.
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
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🙏
Fantastic job! The anount of work involved to have made this must have been enormous.
Dude, thank you for all the time and effort you put onto this video. This is the best demo video on TH-cam by far.
Amazing! The larger replication must have taken hours or days to re-create. Thank you for your hard work! Excellent tutorial, I've seen nothing like it!
I had asked "how a two cycle carburetor works" and buddy you nailed it. The large model helped a lot. Thank you Jay.
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👍🇯🇲♥️💯
This surely is the very best explanation of how a 2 stroke carburetor works and should be viewed and studied by all of the small engine mechanics and buffs. BRILLIANT SIR!
Fancy meeting you here. Cheers! 😘
@@TheLawnmowerLady 😘
Fantastic work! You explained the functioning in a simple and easy to understand step by step way. The big scale 3D model is superb and what a great way to show practically how a small complex assembly works. Great credit to you and thank you for a wonderful and educational video. Top notch.
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.
Not just a really good informative TH-cam video but probably one of the best I've ever seen of this type.
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.
Excellent video! It was very detailed, easy to follow and superbly illustrated with the 3D printed model.
WoW! The amount of work to prepare for this video is amazing. Best description I have seen. I learned why engines surge the other day and was impressed. This blows that description away (although that is still valuable). Thank you, I subscribed.
The supersize, 3D printed carburetor is phreakin' awesome!
Well that was as good as any carburetor lesson as I have seen in my four decade career! Thank you. Also, yes I subscribed
not sure why you don't have 10 million subs already......hands down the best lesson I've sat through in my 50 years of learning......thank you for keeping life interesting Jay......just magic!
Fantastic. Finally I get it. For you to take your time and make all these props and help out all of us is simply marvelous. Really appreciated. Thankyou, thankyou, thankyou.
This must have been an incredible amount of work. Thank you so much for such a detailed explanation.
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!
That was awesome way to explain the carb I've been working on small engines for a bite but never fully understood how that little carb worked thank you so much for this video I understand it now. God bless you.
Absolutely incredible explanation .I now finally understand the 2 stroke carb. Thank You
Congratulations! In the 3D gtaphic animation era, you created an amazing state of the art upscale real model! Beautiful educational video!!
I really can't think of enough good things to say about this video, but I'm sharing it with all my buddies.
I LOVE this video, this has GOT to be the BEST explanation EVER!! Absolutely incredible!! The detail that's on the 3D printed carb is absolutely incredible!!
I've been rebuilding these carburetors for over 45 years and now I fully understand! THANK YOU!
Excellent explanation of how a carburetor operates. I've always wanted to learn this, you have made it so easy to understand. Astonishing and thank you.
Pretty much knocked that one out the park. Crazy good video. Thanks for taking the time to produce this one.
This is the best video explaining how these carbs work! Thank you.
Wow. Been trying to figure out what is my carb is messed up as it won’t prime with the bulb and came across this. Awesome 3d models and explanation. Thx!!!!
10 out of 10 for this video. The best instructional video on 2 stroke Carbys on the internet. 👍👍👍
Brilliantly done!
Outstanding! While I have experience with engines and carburetors I am not an expert especially with 2 stroke. appreciate the detailed yet simple explanation. the 3d print was excellent ad very helpful during the presentation.
Thank You!
The best video about carburator on TH-cam. Thank you sir.
Excellent instructions. And super teaching aids. Best I’ve ever seen. Thank you.
This is by far the best video explained how the carburator works thank you...
Hello, this video is incredible. I have never seen anything so well explained. Thank you very much for providing this knowledge. A big hug from Argentina.
All I can do is echo the sentiments of the other comments. This is truely amazing. Well done Sir.
Incredibly informative video. You really did us all a great service with this one. Thanks
Very well done. Thanks for going through all the effort printing it to explain it in so much detail.
By all means, the best video on Walbro carburators I have ever seen!
Absolutely brilliant! The model is fantastic and this video helped me finally understand how these genius little carburettors work. Thanks Jay?
Just fantastic!! Probably the best explanation of the working of a device on uTube. Thanks and WELL DONE.
Purely fantastic! Best explanation on the internet by far!
I appreciate your time and work. You have encouraged me to just keep moving forward
2 Cycle is my weakest area in small engine repair. Your video is awesome. I know understand how it all works. You should be selling this to vocational schools that offer small engine repair as well as the 3D printed items you have>
This is a great great explanation with a super nice model that is made in high detail! That must have required quite a bit of work
I service my carb but never knew how it worked, many thanks on explanation and very nice prop!
Excellent presentation. Never saw a video so simple yet informative. Taught me so much. Thanks. Will b looking for more of your videos.
Thank you so much Mr. Gould! What an amazing video. I have been working on some small engines trying to understand how exactly carburetors work. I wanted to make sure when I clean a carburetor, that I am spraying the cleaner in the right places. Having this understanding of where the fuel goes is so very helpful. Thank you so much for your time we’ll spent to explain the very complex inner workings of carburetors!
Are you aware that because these carbs (Walbro and Zama) have neoprene check valves in them you should not direct pressurized cleaners or air into them due to the chance of damaging a check valve. And no more hot tanking them. Zama recommends using carb cleaner on the outside of the carb body only and soaking the body in fresh gasoline if needed. Cheers
@@steadyeddie7453 Thank you, I could see the little transparent looking rubbery check valve that looked like it was not oriented correctly. The check valve was not in my carburetor kit so I just pushed on the check valve a little and it seemed to correct. I did soak the entire carburetor in gasoline for 24 hours after removing the ends, gaskets and diaphragms. I also removed the high and low jet needles and then sprayed Honda carburetor cleaner in all the holes and hopefully didn’t ruin anything. It runs now and I was able to get it running smoothly and without bogging on low or high end. At first the idle speed screw kept vibrating so much it unscrewed itself. I put some bearing grease on the screw to make it stay put. Now I need to address the massive over oiling and then clean, file, and straighten the bar, and file the chain and it will be ready to return to the user.
These are "Demand Regulator" carburetors. They are not necessarily specific to 2-cycle engines. Tecumseh made tens of thousands of four cycle engines equipped with them.
The 1958 Brown carburetor was the first of this type. The literature on them mentioned that they were a simplified Bendix RSA aircraft pressure carburetor. In 1960 Tillotson bought the rights to the design. In about 1968 Walbro began manufacturing these "diaphragm" (as opposed to "float type") carburetors - and they worked really well.
One reason they worked so well was that they incorporated a "main fuel discharge check valve" to prevent air being sucked in the main discharge when idling. For years nobody minded air being sucked in the IDLE discharge when the main was pulling high suction. Later Walbro and others (many if not most carbs used on Stihl) incorporated idle discharge check valves as well. (To my knowledge no idle check valves were intended to disassembled and repaired)
A big problem with these carbs is the diaphragms become stiff and "oil can" in and out taking a set first one way and then the other. Walbro now has kits to retrofit clear diaphragms guaranteed to never stiffen (but they must be used with a matching super thin spring steel flat spring - it comes in the kit)
Hardly any mechanics know that you should know how to check the piston rings, cylinder base gasket, crankshaft seals and even the reeds/piston skirt valves for air leakage if your initial disassembly and renewal of gaskets and diaphragms does not yield good running.
It's like this kids: 1) Compression (which includes crankcase compression!) 2) Ignition - which includes spark plug. 3) Then if you have an engine with a dry carb in place that also EAGERLY burns it's prime - You can get it wound up and un-pinch the fuel line and see if you can get the carb to take over from the hand (squirt bottle) priming that you are doing.
YOU ARE WELCOME
Great job on this video! Thank you for providing such a thorough and easily understood explanation. Very helpful!
Es el mejor tutorial que he visto alguna vez. Gracias infinitas por su trabajo.