How does CV carburetor work animation DIY adjustment screw - ep26

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

Рет қаралды 993,123

Күн бұрын

In this episode Custom Cez explains how does the CV carburetor works and how to adjust the mixture screw.
With the help of a detailed animation, we can observe how the carb works from the inside.
After publishing the original "Cv carburetor rebuild" ( • How to tune your CV ca... ) we have received many messages requesting more info, so we decided to produce this video to properly finish the job.
Among the messages we were contacted by CV Performance with some suggestions. You can reach them on their site:
Vacuum piston assembly: www.cv-performance.com/harley-...
Then Custom Cez goes through the process of adjusting the idle mixture screw to optimize engine performance and throttle response.
Don't forget to leave your suggestions in the comments and to share our videos in your social networks.
What did we do:
0:00 - Intro
1:53 - jets cleansing
2:23 - vacuum slide and diaphram assembly replacement
3:37 - what is the idle mixture screw
4:08 - how does the cv carburetor work animation
4:45 - how does the idle mixture screw work
5:45 - how does the carburator's choke work
6:03 - functionality of the mixture screw
7:00 - location of the carburator's mixture screw
7:45 - theory of the idle mixture screw: lean vs enrich mixture
9:30 - idel mixture adjustment procedure
13:02 - are your jets the right size for your engine?
13:28 - are your gaskets air tight?
13:58 - diy exhaust fumes pumping system
15:20 - ending
!!! New Carburetor video "CV vs Mikuni:
• CV Carburetor VS Mikun...
______________________
Made in Rome, Italy we take a look at an European approach to modifying and customizing an Harley Davidson with Custom Cez, an amateur customizer in his home shop.
An RMPnet.com production, music by FAS.
Visit the show homepage www.romacustombike.com/
or the episode page:
www.romacustombike.com/web-ser...
Check out our social platforms:
/ romacustombike
/ customcezusa
/ romacustombike
/ customcez
Download the official soundrtack:
iTunes: goo.gl/WTDraf
Spotify: goo.gl/NgwgjV
Deezer: goo.gl/HGihfX
Tidal: goo.gl/4x1iyo
Google play Music: goo.gl/HuHRLB
______________________

Пікірлер: 643

@CarlosGarcia-ls4hn 2 жыл бұрын

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 2 жыл бұрын

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

@longdong3889 Жыл бұрын

Yup very good

@iSpike 2 жыл бұрын

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

@abramturley2572 2 күн бұрын

😶‍🌫️

@TheLpjoe 7 жыл бұрын

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 7 жыл бұрын

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

@ArcAngel572nc 3 жыл бұрын

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

@harleyguzz4301 4 жыл бұрын

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

@LuKeWaRmLuKe97 3 жыл бұрын

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

@h7oslo 7 жыл бұрын

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 7 жыл бұрын

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

@h7oslo 7 жыл бұрын

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

@PeteDriver530 3 жыл бұрын

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

@andrewstratton9409 7 жыл бұрын

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

@CustomCez 7 жыл бұрын

thank you so much Andrew

@JohnSmith-jq9xx 4 жыл бұрын

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 KZfaq 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.

@juanarrisem 6 жыл бұрын

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

@CustomCez 6 жыл бұрын

Thank you so much man!!! Truly appreciate it

@rustyclutch4496 Жыл бұрын

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

@CustomCez Жыл бұрын

Thank you so much :)

@quadencary8074 2 жыл бұрын

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 🤙🤘

@Micscience 8 жыл бұрын

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 8 жыл бұрын

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

@Micscience 7 жыл бұрын

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!

@MELERIX 6 жыл бұрын

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

@praveenkumargangadhari1542 7 жыл бұрын

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

@CustomCez 7 жыл бұрын

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

@Ryan-hp6xt 6 жыл бұрын

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 6 жыл бұрын

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

@TheSharp89 7 жыл бұрын

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

@CustomCez 7 жыл бұрын

Thank you Matt!

@burtreynolds3143 6 жыл бұрын

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 6 жыл бұрын

+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 6 жыл бұрын

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

@RichardBronosky 7 жыл бұрын

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 6 жыл бұрын

+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!

@b00stinz 7 жыл бұрын

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 7 жыл бұрын

Thank you very much!

@RichardBronosky 8 жыл бұрын

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 8 жыл бұрын

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

@JEGsGarage 6 жыл бұрын

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!

@taylerjudy8254 5 жыл бұрын

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

@Beandiptheredneck 5 жыл бұрын

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

@stuartchopper4602 7 жыл бұрын

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 7 жыл бұрын

So glad Stuart! Thank you

@sableshepherd2485 5 жыл бұрын

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

@carlonunez3886 8 жыл бұрын

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 8 жыл бұрын

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

@rickshawphilippines 5 жыл бұрын

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 5 жыл бұрын

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

@battlechris8463 4 жыл бұрын

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 4 жыл бұрын

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

@engleharddinglefester4285 7 жыл бұрын

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

@CustomCez 7 жыл бұрын

no first time and I appreciate it :) thx

@ruthlesschoy 2 жыл бұрын

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

@drewmili 5 жыл бұрын

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

@CustomCez 5 жыл бұрын

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

@kennydebord2405 11 ай бұрын

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.

@jimmcmath1718 8 жыл бұрын

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

@CustomCez 8 жыл бұрын

+Jim McMath you are very welcome Jim :)

@hunterpalmer5614 6 жыл бұрын

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

@joemikos900 6 жыл бұрын

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 6 жыл бұрын

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

@j.e.barrett1152 7 жыл бұрын

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 7 жыл бұрын

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

@j.e.barrett1152 7 жыл бұрын

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

@np7145 6 жыл бұрын

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

@CustomCez 6 жыл бұрын

Thank you very much PP 😊

@RexDorchester 8 жыл бұрын

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 8 жыл бұрын

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

@terrinhowell6254 6 жыл бұрын

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

@CustomCez 6 жыл бұрын

thank you Terrin :)

@chasingtrail 6 жыл бұрын

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

@CustomCez 6 жыл бұрын

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

@Kawboy13 3 жыл бұрын

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!

@buddhiperera1327 3 жыл бұрын

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

@mrsexytime_ 8 жыл бұрын

that animation is amazing and totally helps to illustrate the easily confusing functions of a carb.

@CustomCez 8 жыл бұрын

+Mr Sexy Time thank you very much!!!

@muhammadshaukat4154 5 жыл бұрын

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

@steveokeefe1002 7 жыл бұрын

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

@CustomCez 7 жыл бұрын

Thenk you very much Steve!!!

@ajayketkar1074 8 жыл бұрын

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

@CustomCez 8 жыл бұрын

Thank you man!!!

@petemorin2876 5 жыл бұрын

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

@CustomCez 5 жыл бұрын

Thank you Pete

@ComesTheRooster 6 жыл бұрын

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!!!

@chavylevy7355 8 жыл бұрын

the overlay diagram is super nice. 10x

@CustomCez 8 жыл бұрын

+chavdar levkov thank you man!

@charlesdsouza2719 7 жыл бұрын

Thankyou

@JohnSmith-jq9xx 4 жыл бұрын

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 3 жыл бұрын

Probably what he's actually good at! 😂

@d-lowz-no9931 2 жыл бұрын

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

@jkack53 7 жыл бұрын

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

@CustomCez 7 жыл бұрын

Joe Kacmarynski thank you Joe :D

@wr400guy 5 жыл бұрын

Thank you for the animation helped me out alot.

@marcelvansanten8247 5 жыл бұрын

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.

@cjsgarage3662 4 жыл бұрын

Good visualisation of the carb! Interesting.

@dave99887 5 жыл бұрын

Excellent video explanation. The animation is perfect. Clear and concise. Subscribed!

@ZCHRL4 4 жыл бұрын

Good Job. Makes the CV action clear!

@johnwdavisjr 6 жыл бұрын

Great job explaining how the CV carb works!

@CustomCez 6 жыл бұрын

Thank you John :D

@LeonardoCinque 7 жыл бұрын

This is great, Kudos!

@TheShahrum1985 4 жыл бұрын

Love this, thanks bro!

@davegeraghty2187 8 жыл бұрын

awesome animation explaining the workings of a CV carb

@CustomCez 8 жыл бұрын

Thank you Dave :)

@AlexisSLO 7 жыл бұрын

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 7 жыл бұрын

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

@govigov 5 жыл бұрын

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

@CustomCez 5 жыл бұрын

Thank you very much 😊

@MrMartycbt16 6 жыл бұрын

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 5 жыл бұрын

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

@forbes80751 7 жыл бұрын

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

@CustomCez 7 жыл бұрын

Thank you Boyd :)

@vector6977 6 жыл бұрын

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

@basoncivicsi 2 жыл бұрын

Very well put together. Great host. Great content. Thank you for your hard work.

@mlmqst 6 жыл бұрын

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 6 жыл бұрын

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

@sergiypavlenko4938 7 жыл бұрын

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 7 жыл бұрын

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 7 жыл бұрын

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 7 жыл бұрын

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

@sergiypavlenko4938 7 жыл бұрын

Custom Cez thanks!

@edgewatersbestguitarist1524 6 жыл бұрын

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

@diegocalvo1898 8 жыл бұрын

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

@CustomCez 8 жыл бұрын

Thank you Diego :)

@bobc5383 8 жыл бұрын

Great Video! Thanks for posting!

@CustomCez 8 жыл бұрын

Thank you!!!

@ErrybodyGetTypsy 2 жыл бұрын

That animation, along with your narration was so helpful!!

@floydromao9160 7 жыл бұрын

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

@CustomCez 7 жыл бұрын

so glad it was useful to you :)

@tintachonajr7373 3 жыл бұрын

Man this is so helpful! Keep the channel alive

@v8cowboy69 8 жыл бұрын

Hey man! It's great. Very understandable. Thank you!

@CustomCez 8 жыл бұрын

+v8cowboy69 you are very welcome :)

@maxdarkdog5051 6 жыл бұрын

Thank you so much ! Now i know what this screw is acting on ^^ I'm on a Shadow 125 with 2 carburetors and i'm planning to change the main jets.... do you think i'll have to change the screws settings?

@dickgalahad4508 4 жыл бұрын

fantastic info, and greatly needed too, thanks

@Pilot1000rr 6 жыл бұрын

this is the video I was looking for thank you

@CustomCez 6 жыл бұрын

Thank you very much ☺️

@federicocerbonim7654 Жыл бұрын

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.

@sahilsharmadec25 4 жыл бұрын

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

@anthonystrazza4586 6 жыл бұрын

Thanks man hope it all works

@Lamirocherdesbois 7 жыл бұрын

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 7 жыл бұрын

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

@KingBennon 7 жыл бұрын

this is by far the best explanation i have ever seen

@CustomCez 7 жыл бұрын

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

@coolbrogoodstory7955 3 жыл бұрын

Awesome video man, great visual aids!!!

@powerofone1645 3 жыл бұрын

Great job. Clear presentation. cheers.

@homersimpson5656 Жыл бұрын

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

@CustomCez Жыл бұрын

Thank you 🙏

@rawbertschoppershop3926 2 жыл бұрын

you did a great job, best cv carb video out there.

@Mircone1996 Жыл бұрын

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

@scrambledgreg3834 2 жыл бұрын

Great video!!! Hugely helpful

@WhattheVloggity 4 жыл бұрын

Precise! Loved it!

@akbarhussain1767 4 жыл бұрын

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 😊😊😊

@mikeb9836 7 жыл бұрын

Thanks bro, very helpful! You just got another follower.

@CustomCez 7 жыл бұрын

Thank you Mike :)

@user-bi6ug7fg7w 6 ай бұрын

I like how you are delivered your message 👍

@rahgahnah 5 жыл бұрын

great animation, really makes it easy to understand

@drag650-motovlog2 7 жыл бұрын

Muito bom, parabéns!!

@figuermex9910 3 жыл бұрын

Excelente vídeo amigo!!

@mattlaing3265 Жыл бұрын

Excellent video.Thankyou so much.

@dougmc9876 2 жыл бұрын

Great vid. Excellent tutorial!

@mefairo 7 жыл бұрын

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

@CustomCez 7 жыл бұрын

Thank you very much man!!!

@Hollywood4Fun 2 жыл бұрын

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.