How does CV carburetor work animation DIY adjustment screw - ep26 - Roma Custom Bike

[@CarlosGarcia-ls4hn]

Those graphic pictures, along with verbal explanations, made for a clearer picture of how the entire fuel delivery of the CV carb works. Great presentation, once again.

[@maggnet4829]

I agree. This really helped me after several videos from others, where I didn't manage to grasp the concept.

[@harleyguzz4301]

Just seen this video, I have been a mechanic for 40 yrs and this is one of the best and easiest to understand explanations of the CV carb and its adjustments , well done chaps

[@TheLpjoe]

Probably one of the best explanations of how the cv Or any carb for that matter, works that I have seen. The well executed use of graphics really added to getting a clear message across and helped give "life" to the mysterious internal workings of a carburator. A picture is worth a thousand words and video is many more than that. I appreciate that you are not afraid to share when it is pointed out something you have previously is in error, You are only human after all, and we all make mistakes. How one handles being called out on one says much about a persons integrity.

[@CustomCez]

+TheLpjoe thank you so much man!!! I think that documenting mistakes is the best way of understanding how stuff works 😊

[@ArcAngel572nc]

Yes, IF he had explained it accurately. He completely left the accelerator pump out and without it the carburetor doesn't work!!

[@rustyclutch4496]

My bike isn't idling so well and i came here looking for some help, and i digged gold. Astonishing and clear explanation.

[@CustomCez]

Thank you so much :)

[@JohnSmith-jq9xx]

thank you. your explanation was the ABSOLUTE BEST ONE on how carburetors work from the MANY videos that i'd watched. it seems that the KZbin ALGORITHM automatically picked up your video and put it as recommended in my front page - after i had watched so many videos trying to figure out how carbs work and still not getting a clear picture.... and MAGICALLY YOUR ABSOLUTE BEST EXPLANATION APPEARED out of the blue to the RESCUE !!! MANY THANKS.

[@06rm250]

I am 24 years old out of Mississippi and this is way cooler than anything I've ever seen in a classroom or in Hollywood keep up the good work bro 🤙🤘

[@juanarrisem]

It is by far the best cv carb function explanation on KZbin, if not on the internet! CONGRATS!

[@CustomCez]

Thank you so much man!!! Truly appreciate it

[@praveenkumargangadhari1542]

Of all the people out there explaining about the carburetor ....your the best man!!!...thanks mate ......

[@CustomCez]

Thank you so much man!!! Appreciate the comment!! Happy holidays to you and your family!

[@iSpike]

Thank You 👍🏻 just what I need to see. Cheers from Western Australia 🇦🇺 😎 ✌🏻

[@abramturley2572]

😶‍🌫️

[@stuartchopper4602]

Brilliant. Have just stripped and cleaned my four CVK40's on my 96 ZZR1100. Now checking idle and slowly getting to grips with carb balancing. This video has helped me a lot. Thank you my friend.

[@CustomCez]

So glad Stuart! Thank you

[@PeteDriver530]

the animation diagram explained EVERYTHING I didn't know about how these carburetors work, thank you!!

[@Ryan-hp6xt]

This video saved my day man. I figured out my vent hose was clogged. This was causing the pressure in the float bowl to hold the needle open and making my ATV run super rich and backfire and bog down... If I hadn't seen those animations I would have never thought to check the vent hose.

[@CustomCez]

That's great man!!! Very glad it helped in figuring it out!!! :D

[@j.e.barrett1152]

I've worked on a lot of motorcycle carbs and heard a lot of people talk about them, but your explanation with the video graphic on how CV carbs work is probably the best I have ever seen. I have subscribed to your channel and look forward to watching the rest of your videos. Outstanding video.

[@CustomCez]

Thank you so much J.E. :) I really appreciate your comment!

[@j.e.barrett1152]

No problem, sir. I look forward to seeing more from you.

[@kennydebord2405]

I've watched my share of how to videos and will say hands down your video on mixture adjustments is the most informative I've ever seen. Excellent presentation, easy to understand and follow. Great job.

[@andrewstratton9409]

Man I appreciate your delivery methods, you're a hell of a teacher

[@CustomCez]

thank you so much Andrew

[@Micscience]

Man in one second I knew you were Brazilian. I went to San Paulo in 94 and it was the best time of my life. Your video was surprisingly informative thanks a bunch!

[@CustomCez]

+Micscience Italian :-) i'm Italian and you are welcome. Thank you for watching it!!!

[@Micscience]

Well if its not Portuguese, then Italian would be the closest choice in my opinion but boy was I off. Anyways thanks for sharing good luck!

[@LuKeWaRmLuKe97]

Where has this channel been my whole life? This guys energy is much needed. Other biker Channels take notes! 👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾

[@joemikos900]

One of the best videos I've ever seen. Can't believe I found a professional who admits he made a mistake! That's how we learn. Been a car tech since the 70s and smart enf to know I have a ton to learn. Hoping this helps me fix my Son's bike. Thank you very much!

[@CustomCez]

Thank you Joe!!! I’ve discovered the coolest stuff by making mistakes so i see the as a “badge of honor “ 😊

[@h7oslo]

It's a good man that accepts corrections and makes adjustment to his process when good information is offered. Bonus! A gud instruction vid. rc

[@CustomCez]

Thank you Rusty, I always try to take in good info when is actually good :)

[@h7oslo]

Yessir ! Learn more, better every day ! :-) rc

[@engleharddinglefester4285]

You're a really good teacher you probably hear that all the time.

[@CustomCez]

no first time and I appreciate it :) thx

[@MrMartycbt16]

Hey man, total bike noob. Bought a gpz 305 that hadn't run in 15 years and got it going and set and cleaned the carbs with the help of your vids. Cheers big man.

[@CustomCez]

Glad to be of help 😊 let me know how it goes!

[@drewmili]

Hands down, you have the best explanation of how a carburetor works. Very very well done. Thank you so much.

[@CustomCez]

Thank you very much Andrew!!! I really appreciate it 😊

[@RichardBronosky]

I love this video so much. My first comment on this video was a year ago (which you replied to, thank you). I have been back about 4 times since. I use it to "get my head straight" before every carb task I do, or carb advice I give. Much love, brother.

[@CustomCez]

+Bruno Bronosky my man!!! Thank you soooo much!!!! I really appreciate your comment cause it makes me very proud of my work. Thank you brother!

[@rickshawphilippines]

I have to say that ive been watching utube over 2 years. (Retired got back into motor biking) have 10 motorbikes here in philippines (american guy from northern ohio) got time. so im gonna keep my bikes up myself. Have to say that was the best video about carbs i have ever seen! ! ! Keep puttin out content i sent this vid 2 all my family n close friends keep up your fine work thanx

[@CustomCez]

Best comment ever man!!! Thank you so much!

[@battlechris8463]

How does a guy from Ohio end up 9n the Philippines? I've heard theres a big bike scene over there rn. G.I.?

[@gittyupalice96]

from 4:00 minutes to 6:30 minutes was the best and most understandable explanation of how a carburetor works that I have ever seen. And the animation with the music was excellent as well, I feel like that section of the video deserves to be taught in tech schools around the world. It would of helped me out A LOT if I had seen that as a kid, but I didn't... So I learned the long hard way by breaking things lol. Good job

[@carlonunez3886]

Hello Cez, thanks for all the great carburetor education. I have converted a dual carburetor Virago to a single CV40 and although it's not a final driving bike, your videos have definitely been a big part of the progress! Thank you my brother!

[@CustomCez]

Hi Carlo! So happy I could be of help :) I had a Virago 750 myself in the States and they are fun to drive!

[@d-lowz-no9931]

You’re a certified bad ass for making this video so detailed. Very cool. Thank you my friend.

[@laochnasolais5520]

Awesome, thank you for explaining it like you are talking to someone who is not familiar with terms used by a mechanic or a seasoned DIY mechanic.

[@jkack53]

An AMAZING, INFORMATIVE, and highly ENTERTAINING video. The graphic on the inner workings of the CV carburetor are really top-notch. Grazie Mille.

[@CustomCez]

Joe Kacmarynski thank you Joe :D

[@jezzter14]

Great animation of how the carb works and how the air fuel works

[@b00stinz]

This video is amazing! Especially the part where you overlay the inner workings over the carb around 4 mins, beautiful. Good job, you're a great teacher!

[@CustomCez]

Thank you very much!

[@ruthlesschoy]

You made it extremely easy to understand how they work, especially with the animations. Thanks!

[@Iamthathillbilly]

Trying to figure out fueling issues with my atv with a CV carb. This video is exactly what I needed to understand how this type of carb works! Thank you for posting

[@BGdubs92b17]

That was a great video. As a visual learner, that was exactly what I needed. Thanks!

[@federicocerbonim7654]

Very well explained, one of the best I've seen. good description of how it works and going to the basics. Even though I have never own a Harley (and never will) the explanations works for any Keihin. Congrats.

[@brianbaker8625]

I just came here looking for a general explanation of how carbs work. Even though your purpose was to focus on the idle screw, therefore skipping over the accelerator pump and other parts, this is by far the best explanation I've seen! I love how you superimposed an animation over a live video. Augmented reality is the best way to understand design and function, in my opinion. I would love to see you go further with this method of explanation. Your videos would have more hits than Engineering Explained!

[@CustomCez]

Thank you sir 😊 i’ve done a few more on the subject, check out the channel and I hope you will find them as engaging as this one 😉

[@jimmcmath1718]

This was the only video I could find on adjusting the mixture screw. GREAT JOB, THANK YOU !!

[@CustomCez]

+Jim McMath you are very welcome Jim :)

[@RexDorchester]

Very thorough, very detail oriented, I love that. Extremely effective use of graphics as well, i'm certainly going to have a much easier time rebuilding my 1982 Yamaha Virago XV920 carbs now. Like, this was actually super informative I'm blown away.

[@CustomCez]

Thank you very much man!!! Good luck with your carb rebuild :)

[@petemorin2876]

Great video thanks for the full in-depth explanation on CV carburetors

[@CustomCez]

Thank you Pete

[@steveokeefe1002]

Great animation on how the fuel / air delivery works. Congratulations - 1st class video.

[@CustomCez]

Thenk you very much Steve!!!

[@sahilsharmadec25]

There r lots of videos on KZbin but your video is very helpful for me ... Thanks buddy

[@ajayketkar1074]

Very detailed one! Loved the way the working of CV carbs explained with the animation!

[@CustomCez]

Thank you man!!!

[@davegeraghty2187]

awesome animation explaining the workings of a CV carb

[@CustomCez]

Thank you Dave :)

[@EB-dr8qv]

Finally some one who understands us lol awesome very great information much needed bro

[@taylerjudy8254]

Best video I have seen so far explaining this. I really like the precise animations showing exactly what is going on. Very helpful. Thankyou

[@homersimpson5656]

Great info. Loved the down to earth explanation of the material! Super great job.

[@CustomCez]

Thank you 🙏

[@buddhiperera1327]

This video really helped me to adjust my CVK30 carburetors on Kawasaki ZRX 400.Now throttle response is amazing,thanks mate!👍

[@ComesTheRooster]

I have a Honda CT70, which is obviously a VERY different motorcycle and carb. But, this video has helped me understand my bike so much better. Thanks!!!

[@diegocalvo1898]

Animation top-notch!! Very usefull to understand how a carb works. Thanks.

[@CustomCez]

Thank you Diego :)

[@pielcee7546]

I have a 79 yamaha xs 750, so I have 3 carbs that i need to mess with, anyway you have given me a really good perspective as of what i need to do, i really appreciate your work, thank you very much.

[@CustomCez]

You are very welcome!!!

[@mohanrajk1331]

Simply awsome man.... tune the carb with all accessories attached to it....adding filter after tuning will result in loss of duel....

[@MELERIX]

best carburetor video, the animation is perfect to explain mostly everyting about it.

[@Mircone1996]

sei forte! parli benissimo inglese e hai spiegato tutto molto chiaramente, complimenti

[@Lamirocherdesbois]

Thanks a lot ! What huge animation job you did ! It is the most didactic carburator explanation I have seen. Thanks for your effort and I assure you it helps me a lot!

[@CustomCez]

very glad it was helpful :) thx for the compiments!

[@johnwdavisjr]

Great job explaining how the CV carb works!

[@CustomCez]

Thank you John :D

[@np7145]

The way you represented the carb in diagram was amazing... rest of the content was awesome as usual.

[@CustomCez]

Thank you very much PP 😊

[@blairguinea6811]

this guy needs 35,000,000 likes, awesome explanation Sir

[@CustomCez]

thanks Blair :)

[@floydromao9160]

Thanks for the help,finally set my carb to its optimum setting

[@CustomCez]

so glad it was useful to you :)

[@chasingtrail]

Great video. Carbs have long been mysterious to me but you made it easy to understand. Thank you!

[@CustomCez]

thank you man! so happy that it was useful to you :)

[@JEGsGarage]

This is an amazing video for these carbs!!! I have a Honda Nighthawk 750, and Im getting into tuning the carbs. I needed this information just to wrap my head around whats going on at different throttle openings. FANTASTIC information! Thank you!

[@dennisdethloff2431]

excellent video , it took a cartoon to help me understand a CV carb , thanks

[@CustomCez]

hey man, what ever it took, the end justifies the mean right? :) glad you liked it!

[@RichardBronosky]

You SERIOUSLY need to have a FIRE EXTINGUISHER handy when doing this! Great video. Just make sure to include safety. I discovered an exhaust header leak while doing this. It was dangerous, terrifying, and nearly disastrous because I didn't know where my fire extinguisher was.

[@CustomCez]

+Bruno “Richard” Bronosky hehe, I do have one handy :)

[@philsmith9623]

The cgi operations line diagram is great! The rest of the video I found clear and helpful as well.

[@sergiypavlenko4938]

honestly it is the best video about bikes customizing i've ever seen! it was so useful for me! i am rebuilding my first bike and this is just EXACTLY what i needed because i don't have any experience yet! it would be great if you'd make more videos like this, about transmission, engine, electronics, breaks etc.! anyways, i appreciate what you do, it's very helpful! thumbs UP!

[@CustomCez]

Thank you Sergiy, I'm planning on doing a few episodes on those subjects starting with the exhaust, so make sure you click on the little bell next to the subscribe button to get notifications of the new videos ;)

[@sergiypavlenko4938]

Custom Cez sounds great! I'd also like to know if there's any way to contact you if I have any questions during my project. some kind of public chat or an e-mail where people ask you for advices. thank you :)

[@CustomCez]

yes, you can join the discussion on my facebook page facebook.com/romacustombikeeng

[@sergiypavlenko4938]

Custom Cez thanks!

[@edgewatersbestguitarist1524]

hey that's awesome man. as my dad would say "get back to work boy" lol

[@Raja-kk1zi]

this is really very very..use full it's not totally real parts and also not fully animation because both not make us totally understand.but this is really interesting and make very clearly understand by providing both reality with animation.and then it's complete stuff was learned in only one video ..thanks and very useful for my studies...

[@CustomCez]

you r very welcome! glad it helped

[@mlmqst]

I don't usually comment on videos but this is really helpful. THANK YOU. Now I at least have a decent idea on how to go about adjusting my carb. Keep up the good work man!

[@CustomCez]

Thank you so much Pontus :D Glad it was helpful to you!

[@ValroyPaisley]

I like how you are delivered your message 👍

[@forbes80751]

Hey. I come from an automotive background and the CV carbs were black magic to me. I appreciate showing me how it works!

[@CustomCez]

Thank you Boyd :)

[@vector6977]

Early Honda Cars used 2 of these. My buddy's 1984 Prelude had the that setup.

[@SandorFule]

The role of the spring is also worth to talk about. Its strength determines the air/fuel ratio. If the spring is old and weak, the same vacuum will suck the diaphragm and pin higher, so the fuel consumption will increase.

[@hunterpalmer5614]

Great video. Diagram and adjustment walk through were both extremely helpful!

[@chavylevy7355]

the overlay diagram is super nice. 10x

[@CustomCez]

+chavdar levkov thank you man!

[@charlesdsouza2719]

Thankyou

[@JohnSmith-jq9xx]

that EPIC overlay diagram was what made HIS VIDEO STAND OUT from the other useless explanations i've wasted my time watching !!! keep up the good work.

[@ArcAngel572nc]

Probably what he's actually good at! 😂

[@pamposkleovoulou6314]

Giving us a very helpful explanation.Just one question.You say to put a bigger jet if idle screw is less than one turn and a smaller jet if more than 3 turns.Which jet are you talking about? Idle jet or main jet? Thanks in advance..Pampos kleovoulou.

[@CustomCez]

thank you Pampos, i'm referring to the idle jet, as the main jet doesn't get into play until almost full throttle :)

[@marcelvansanten8247]

Thank you for the very clear animation! I have a problem with my Yamaha YZF 600r which starts without any choke after cleaning the carburators and replacing the pilot screws. Now thanks to your video I can see that i probably turned the pilot screws out too much and was running rich.

[@sableshepherd2485]

Very well done Sir!!! Amazing analysis in an easy to comprehend way. Thank you.

[@rahgahnah]

great animation, really makes it easy to understand

[@muhammadshaukat4154]

- An excellent presentation and explanation as to how carburetor works. Thanks for adding valuable information to our knowledge. Regards

[@akbarhussain1767]

Hi there Roma Ces,that was a great run through on how to adjust the screw on the carburetor,thank you so much ,for all them great tips,thank you friend 😊😊😊

[@AlexisSLO]

Ciao ragazzo :) Hello from Slovenia - Maribor. Amazing video. Same thing goes for PWK carburetors to. People tell how to adjust it, but your animation does it the best cos it shows the main thing. Keep up the good work. +1 like ;)

[@CustomCez]

Ciao Alexis, thank you very much!!! I'm very proud of this video and I really appreciate the feedback :)

[@KingBennon]

this is by far the best explanation i have ever seen

[@CustomCez]

+KingBennon thank you so much!!!! I'm really glad this is working out for so many people!!!

[@terrinhowell6254]

tHIS WAS MORE THAN HELPFUL !! tHANK YOU FOR THE POST!

[@CustomCez]

thank you Terrin :)

[@ZCHRL4]

Good Job. Makes the CV action clear!

[@govigov]

The best video i have seen on tuning carbs! Nice work!

[@CustomCez]

Thank you very much 😊

[@Hollywood4Fun]

I appreciate you pointing out the cap covering the adjustment screw. I have a Yamaha XS 1100 and had to replace one of the four carbs. I ordered a carb body off eBay but noticed there was a brass plug covering the adjustment screw. Good to know it can be removed if needed. Thanks.

[@lakesidemotorsports7658]

Great animation. Best explanation yet

[@rooster68able]

Very good video ,very informative on the 2 different types cv carbs 👍

[@tintachonajr7373]

Man this is so helpful! Keep the channel alive

[@antoniocbonillo1096]

Buenas ,he visto muchos tutoriales , y los suyos me parecen de lo mejor ,muchas gracias ,también por los subtitulos , un saludo desde España .

[@CustomCez]

You are very welcome man 😊 ciao from Italia 🇮🇹

[@woozhi9218]

How often do you find people that is humble and willing to point out his own mistake god really needs to know be fair with their decision.

[@mefairo]

the best how to video for carburator ever that i whatched. thank you very much

[@CustomCez]

Thank you very much man!!!

[@AnujChamara]

Excellent explanation.thank you very much.

[@CustomCez]

+Ravi Shane you are very welcome :) thank you for letting me know

[@woofwoof7076]

Best video ever, instant sub! Only suggestion is please remove the loud music during the explanation if possible

[@zzparadoxzz]

WOW Thank you!!! this video is great!!! make it so much easier to understand

[@CustomCez]

Thank you man!!

[@SWATT101]

Awesome going to apply this to my DR 650

[@Kawboy13]

Thank you much for this video! It cleared up some questions I had as I have been working on my carb. Two thumbs up! Way up!

[@Snurre86]

5:57 or 7:26 If the idle circuit mixture screw is on the intake side of the carburetor it usually adjusts the air and when it is on the exit side it usually adjusts the fuel.

[@glockstitch]

This video is impressive and extremely helpful. Cheers from az, 1997//883

[@CustomCez]

thank you ;)

[@Justiceandlaw]

I couldn't go through your entire video.. my question is "I have a diapram, volume control type air screw CV carburetor in my bike and I heard in those kind of carburetor air screws works as a volume controller for pre mixed petrol air mixture supply to the ignition chamber instead of changing the ratio of mixture when it is screw or un screw" Am I right or wrong... And how could we find the optimum set point of air screw when we adjust it for maximum milage...

[@abhishek744]

very nice animation,very clear.Keep it up.Well done.

[@CustomCez]

+abhishek roy thank you Roy 😊

[@TheSharp89]

Awesome video man! amazing detail. I really like how you did that animation of how it works! keep it up!

[@CustomCez]

Thank you Matt!

[@burtreynolds3143]

I liked the animation too. you should tell your viewers that since you don't ride the bike at idle that screw doesn't do shit.

[@CustomCez]

+Burt Reynolds thank you burt, yes u don’t ride at idle but the the small Jet provides fuel to the system at least until half way to full throttle. So it is pretty important for responsiveness and pick up, also for spark plugs health.

[@juntjoonunya9216]

yes I wanna know what program is used. I'd love to start doing these type animations for my little vids I do

[@mattlaing3265]

Excellent video.Thankyou so much.