Holy sh*t this is the best video I’ve ever seen! I feel like I learned more in this video then I did in school from preK to senior year lmao!

Man, I went to school for motorcycle/atv repair, and have worked in shops for several years, and nobody has ever explained carbs as well as you just did! All I can say is wow, and thank you.!

I've been a mechanic for 7 years, I work on old cars, chainsaws, motorbikes, and have messed up more carburettors than I'd care to admit, to get to the point I'm at now. When I did my apprenticeship the training organisation only spent a 3 hour lesson on carburettor function, and we never worked on one. This video should be standard viewing for any mechanical course. It explains everything perfectly, and I'll be sharing it with anyone who cares to listen. Well done, and thank you!

An enthusiastic young expert is always much better than a classroom teacher. That was perfect. Thank you

Dude 2 years later and still relevant i was scared to change my carb on my 2023 ruckus due to the jetting, have a performance exhaust, air filter delete, and pressure tube and all i needed was the performance carb now im going to change it and see how it goes thank you!!!!

2 years later and this video is still saving marriages! I was so pissed off trying to get my carb tuned and the enrire time i was trying to fix my idle by screwing up everything else. Thank you so much for putting this out there!

I've been tuning carbs for years on everything from 2 stroke to brig's to VWs to racing V8s and many multi carb set ups from street strip racing and off road rigs. You have definitely explained in 30 minutes what I spent many years early on to learn trial and error as a young man. I'm the go to guy for my buddies when it comes to tuning carbs and timing and over all engine flow from air in to the exhaust out the end of the tail pipe. From now on I'm sending the guys that come to me to your video so just maybe they can learn for themselves. Teaching guys about tuning carbs is like talking French to a Spanish taught cajon You got it covered down to plain English.

incredible how well this video explains carbs, never been so impressed with a youtube lesson before

Your gold standard video should be used to educate most video producers on how to do it right

Having been a teacher part of my life and an engine DIY-er I think this video is one of the best I have ever seen. It is extremely well planned, documented and explained part by part. Hoping you will appreciate positive comment to make it even more perfect, you could spend a bit more time on pilot jetting versus the turning of its mixture screw (with the wideband in place). As an addition you could also mention some carbs have a separate idle air-jet on the filter side of the carb. Thanks a lot for taking the time to make the video.

A lot of work went into this and I hope everyone learns something and appreciates the trouble this guy went through. I'm 73, been flying two cycle ultralight aircraft since 1978 (call it 44 years) & recently Paramotors. Even I learned quite a bit from this. Many thanks to Mr. Rolling Wrench!

This is the video on carburetors that I have always dreamt of! When you have no help or money, this video is an absolute blessing. Cheers.

I ride dirt bikes with carbs. This is the best carb video I have seen on YT. Thanks for sharing Rolling Wrench

That was one very informative, easy to follow explanation of carbs! Thanks for taking the time to create such a great video, it is truly brilliant! Cheers!

WOW !!!!!!! Im old and use to read books over and over to the point I gave up and just sent them out ..Now here I set on a Zuma build with fuel filling my new pipe because the guy at the performance shop told me I had to make sure some hole wasn't clogged ..so I stuck a pice of wire in every hole ..I know ..but living in Maryland not many people know scooters ..so fuel problem send a new carburetor ..Oh yeah by the way the new carburetor needs to be tuned ...HA HA HA HA...What the hell does that mean ANYONE WANT TO BUY A ZUMA??? I watched this video as a last ditch effort ...Because I'm old and ill figure it out ... Well I am in tears ...I really believe I can do this...and this was the BEST TEACHING METHOD ...I think you found your calling Gods Peaceful Blessings.

Wow man that is the best tutorial and explanation I've ever seen! I knew a couple of the basics but you just brought everything to light and hit a home run! Thanks for the information.

I am on 2stroke carbs, but lot of info here will help me with my tuning. Thanks a TON for this!

Absolutely insane how much you covered in this video. Major props to you for covering EVERYTHING in so much detail. You killed it.

Awesome video bro. I learned so much. Went from knowing nothing to feeling very confident in tearing into my carb. Thank you for what your doing.

You cleared up the lean/rich diagnostic question that I've been listening to people bungle for 5 years,..in just 5 seconds,...thank you !!!

Probably the best carb video I've seen yet. Kudos for going through tuning too! For some reason very few others do that.

This video made me realize that the float has a needle, when I took it apart it bounced under the tire of the mower and I had no idea to look for it until watching this. Now it's running again and I can feel like a proper home owner lol

Learned way more than I thought I would especially how that dude looked at the beginning 🤣.

I am a Navy artisan in South Africa and they went straight to diesel engines and skipped petrol engines completely so I am checking out carbs for myself as I am going to buy a cheap Chinese motorcycle that has a carb. Thank you very much.

Thanks for doing a masterclass in how to tune a carburetor. Extremely well done!

Very informative and educational! I had a basic understanding, but you took it to the next level! Thanks, Don

This is hands down the best carb tuning video I have ever watched. So much information presented in a way that is extremely easy to understand for anybody at any skill level. I’ve been working on small engines (ATVs, snowmobiles, dirt bikes, etc.) for the better part of 9 years and learned a lot of what I know through trial and error. Never have I ever seen somebody explain carb tuning so well and make it as simple as you have. Amazing video! I learned a couple things I wish had learned when I first started.

That was hands down the best general tuning video for smaller carbs. Very good job sir.

This by far and above the best carburetor, tuning informative KZfaq video in existence. This mans knowledge & expertise makes all of these other KZfaq video’s on carbs look elementary. Great job man. Definitely earned a sub.

There are teachers, and then there are people like you. Wonderful stuff my man, you make it very easy to learn! 🙌🏼

Gotta say I really appreciate the level of detail. I just cleaned my 4 carbs and took the opportunity to re-jet my 2007 Yamaha RSV because I added Monster Ovals and K&N air filters last year. Since then, the bike only ran at 1/4 choke (Mikuni plungers). When I tore them down, all the jets were clear, but the float needle gaskets seats' seals were hardened and started leaking which is why I did the job. Went up from 15 to 20 on the pilot jets and from 115 to 122.5 on main jets in the front banks and from 123 to 125 on rear banks. (Something like that. Can't remember the exact original size on the rears. I still have all the original parts though). Set pilot screw at 3 1/4 turns. Got it put back together, and she started right up with little initiall choke and ran strong at cruise speed or WOT but was getting afterfire and a little flame on the left pipe during deceleration, which I didn't mind much. Actually liked it, but didn't want it ruining anything or fouling the plugs. Fast forward to 2 days later and it wouldn't run long on cold start. Choke didn't help but actually wouldn't run at all nor start with choke. So now after watching this video, I'm thinking I may have to lean out the idle circuit as I have a sightings better understanding

I just got my first 2 stroke (banshee) and was overwhelmed by the carbs and you have simplified it tremendously. Thank you.

Well done in order and layout, this is a process that needs attention to details, and you have identified every component to follow and understand functionality my 10 year old can tune a carb thanks to your demo . .

I've been shade tree adjusting carbs as needed for years, sometimes great sometime horribly. That just explained everything. Best tutorial on this subject ever. Thank you very much!

50 years riding and wrenching and I now understand what I do wrong - thank you! An excellent tutorial!

I have a TVS tricycle and it's too rich and very gas consuming. I tried several times to do the jetting but it helps only a little. Your video gives me complete idea of jetting. Thanks bro. Cheers from Indonesia.

Well prepared, I've been trying to teach my son about how carbs work. You just saved me hours! This explains it better than I can. Also, I always thought back firing on decel was rich but logically, it's when enough fuel gathers to pop. Makes sense. Really appreciate your effort.

Man, I just learned how the hell my carburator works, because of this AMAZING video! Really really simple and helpful. Thank you so much man

That was probably of the most straight forward carb video ive seen. Keep up the great informational content!!

This video should be taught in public schools.

This is excellent! Thank you taking the time to explain this so thoroughly.

I found this really informative and as a keen motorcycle enthusiast with hardly any knowledge on how to maintain bikes I firmly believe that I could do what your video shows. I may need to watch it a couple of times more but I definitely will be having a go. Thanks for the lesson.

Fantastic job explaining this whole process. Extremely thorough while being easy to understand !

I bought a Rolling Wrench Carburetor 49cc 125 carb for my BBK build and it works perfect very happy with it best 65$ I've spent.

Duuuude! You showed up exactly when I needed you. Have a PWK that I'm working on and couldn't find a decent video for that type of carb. Thank you!!! 👍

This is an excellent video. Months ago, I wrote of sharing value of your experience--instead of making info-tainment, this is the kind of thing I meant. I've worked on all kinds of mechanical contrivances, but back when I had my old motorcycles, they didn't have a power jet, so I learned something too. Thank you.

I've watched a lot of tutorials about tuning carb, and by far this was the best among the rest. Best explanation ever made. Now I can do a lot better in working carburetor.

My wife's ruckus would not start when cold. Took forever. I found a previous video about adjusting the valves. Did so. Starts! So, I subscribed. I will apply what I learned in this vid to tune the carburetor OR look into an injection system.

Very informative. I felt like I just took a degree course in carburetors. Great job.

This video was a life saver getting my dual carbs setup. Thanks for such an informative video!

I would like to thank you for taking the time in the making of this video. I searched multiple videos on carburetor and this is one of the best I have seen. I have forwarded your video to all my friends that have ATVs/ Dirt bikes. Continue your hard work.

You just knocked this carburetor construction and operation roadblock out of the park for me. I now have the knowledge and confidence to face this menace which I have been avoiding for years. No longer will I raise the white flag and surrender to a poorly running carburetor!! I got this, thanks to you and your highly educational video. THANK YOU!!

The best carb tuning video I've ever seen!! been sharing the f out of it in all my pitbike groups great work

I can just tell by the length of the video and your intro that it's worth watching. I've messed with carbs on 2 strokes mostly and even have my banshee with 2 synced carbs working perfectly but really appreciate these videos. It's free continued education

Brilliant vid. Simplified enough for me to be confident in stripping and rebuilding a carb of my own! Great work. Thanks

the only guy that can actually explain things without making me think I'm stupid

Excellent tutorial, thanks for the work you put in to this. I rode modern sport bikes up until a few years ago, all with EFI, but recently got back in to riding with a single cylinder carbureted dual-sport. This will help me tune the carb and get the best performance possible out of this little thumper.

Mate I've been working on cars and bikes my whole life and have a lot of experience with carbies and I have to say your video is one of the most informative and very well thought out/planned videos on carbs I've ever seen! Good on ya! Cheers from down under! 🇦🇺

by far the best explanation on how carbs work and how you tune them all in one video you did a fantastic job at explaining how and why a specific change effects the rpm and mixture

Excellent video...My 2 stroke dirt bike was bogging down off the starting line, now I know why. Thanks to this video I now know what the problem is and how to fix it. Thank you !!!

The absolute best lesson I have ever witnessed on the topic of carburetors! Introducing all the "players" at the beginning so as to establish a vocabulary was a classic instructional technique. Taking the time to explain not only the purpose of each part but how their functions were related was superb! The cause and effect scenarios for rich and lean and how to remedy the situation for a near perfect stoichiometric ratio were exemplary! You have a gift for taking what can be a very complex topic and making it easy to understand so that others can put the information to use with successful results!!!

That was so informative. If someone is really interested on being a motocycle, ATV, UTV technician, this is not to long video. I'm thinking about getting that kit.

This was amazing. Getting close to first start of my bike carb conversion on my MK2 Golf and this is going to help me tune to my wideband. Thanks a lot!!!! ❤

Thank you for all the time amd effort you put in to make this video. I thought I already knew how carbs worked and how to set them up and tune them. This video let me understand how my turning of screws actually altered how the carb functioned. I came across this video as the top You Tube recommendation after watching a video by Dustin of the "Smarter Every Day" channel. He had built a working see through Carburettor and uses a high speed camera To show how the carb uses the venturi principle to mix the fuel and air for to the engine to use. All though he had the choke and throttle on his see through Carburettor his video only showed the principles and not a real life carb. But by watching his video and then yours it gives a perfect understanding of the carbs working principles and then yours shows how those principles translate onto a proper engines Carburettor, what all the screws control and how to use them to tune the carb to its full potential. Both videos I think were brilliantly made, easy to watch, well thought out and turned a fiddly job into something much easier to do. Thank you for all the time and thought you put into creating a perfect mix of a good quality video and great subject and educational content. Keep up the amazing work, you just got a like, subscription and a notification bell ring. I'm now going to look at the videos you have made previously and probably binge out on them for a good while. Thanks again.

This video helped me understand so much more about carbs that I hit the Like button 3 times!

Man you don’t know. You have no clue. How bad I’m about to jack up my carb. But I’m watching over and over

This was like a Matrix knowledge upload. Completely demystified carbs for me and probably everyone. Awesome video.

muito bom meu amigo, meus parabéns pela aula e obrigado por compartilhar o seu conhecimento!

Most helpful video I’ve ever watched can’t thank u enough

This video can turn a newbie into pro (with some hands-on experience) The best carb guide video ever

Great video. Watched it at breakfast, bike carb out, cleaned, jetted and running better than ever by lunch. First carb service ever. Thank you. So happy.👍👍

Thanks very much for such a professional presentation. I've never touched a carb until a few days ago when I started on the set on my 9 previous owner Kawasaki ZXR, none of the jets are as per the manual, and it's got an after market pipe. I'm going back to factory settings to start with so we'll see what happens when its back together or sure. Cheers again, Gaz

nice humor @ end. thumbs up.. not twice for that would remove my like.. lol

Always straight to the point not a lot of BS just talks about the topic. Thank you for your videos.

The best video I've seen on carb tuning, the wideband demonstration was the cherry on top.

I don’t even own a ruckus but this seemed liked really useful info.

thanks for the video i thought the whole carb worked together when running also how would you do this on motorcycles with 2+ cylinders

you deserve appreciation 👍 i have watched tons of videos on carburettor adjustments, but none of them explained the things that you did, specially O2 sensor thing 👏👏

Subbed!!! I'm a Motorcycle instructor in Ohio and our carbed bikes are Teedubs, a ton of old Rebels, and a few Suzuki GZ's. My personal bikes have been carbed and I'm definitely no expert, but I have limped my way through adjusting them so they run. Your video clarified and integrated lots of the information I had cobbled together in my head. Excellent!

Thank you!!! I think now I can tune the carbs on a tank!😆

Dude, I think I just got my masters on carbs.

Thank you for putting this all into layman's terms! I get it, I understand what your saying,I'm definitely learning. You my good sir are an excellent teacher. Thank you again 😊

Best video by far. Struggling with a Mikuni... looks like the struggle is about to end.

I learned…..about a semester of community college mechanics

Your brother are amazing. Thank you. I don't have it fixed yet but I'm going to thanks to your video. Fifty-three-year-old pipe welder definitely mechanically inclined but never fooled around with carburetors. Just bought a 2002 Kawasaki zx7r. Great bike but has carburetor problems thanks to you I feel better and I'm working on it.💖💖💖💖

OMFG, just what the Dr needed. A tutorial on Carb setup. Thank You, Thank You, Thank You.

Great video with every information and detail someone would need when they do carb tuning! Thank you! I'm buying that tool. I'm seek and tired to go with the trial and error method all these years with my bikes! Thanks and please keep up the great work!!!

I've never had a more clear explanation in all of my 69 years! Thanks

Just wanted to drop you a line and let you know how much this video has changed my thinking. I have NEVER tuned a carb before… not even a clue of where to begin. I watched this video 4 or 5 times, and tore my brand new NAVI apart yesterday. I live in Denver, and feel like it was not tuned well from the dealer. I also put a intake and filter on it to remove the massive air box. I am feeling more confident and informed. I bought a “jet kit” for the intake and decided to “figure it out myself.” I feel like it is getting better, and with a little more trial and error, I will get it. I don’t think I would have even attempted without this video. Thanks for putting together such a great resource for the community. I hope to make it by your shop soon. Thanks again!!!

I loved this video!!! It makes it so easy to understand and when you have that one customer that has got it all backwards ,this video can stop all the what if questions before they get started... Point Blank Period!!

I stumbled onto your video, almost gave up on looking further just before I did. What amazes me is after watching your video twice, I have no questions and im not pulling my hair out. Some people like to hear themselves talk and provide little to nothing important, they should watch, listen and learn from you..i know i did. Thank you for taking the time on making your very informative, quality video. I am now a loyal subscriber. Gotta love it!

I feel like I just did a year apprenticeship in 30 mins! ... time to get my bike dialed in and running 'stoic'. Thanks man. 😎

You nailed it, all in one technical explanation as connected to the actual site condition. Double Thumb's Up. This guy , he knows what he is talking about with solid output and really skilled unlike others that are pretenders .

I'm working on my wpb and just cleaned the carb. You've earned a sub just for effort labeling the parts alone. Half way through the vid, very happy 👍

STILL the BEST video on KZfaq... Thanks soo much for making this. i just did a zs190 swap on my Grom and your videos ALWAYS help

Very informative video. I'm going to tune my carb this weekend and this will help a lot. Thanks for the video!

Good work! Thanks for teaching thousands of people on a subject that can be confusing easily

Awesome video man! Perfect for anyone experienced to learn something but slow and detailed enough for my 10 year old to follow along!

A friend shared this on Facebook. Well done 👍! I'm 58 and have been messing with engines probably from around 7-10 years old. I've blindly "adjusted" carbs, and kinda gotten things to run okay. New Sub.

Your instructions are truly amazing it makes a lots of sense because the needle controls every thing to make the engine gets a perfect performance, let me try that thing adjustments because the performance of my machine is so groogy, looks like spitting out so much gas, you're the best teacher on live performance