How does CV carburetor work animation DIY adjustment screw - ep26 - Roma Custom Bike
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- Опубликовано: 7 июл 2024
- 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...
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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
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Авто/Мото
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.
I agree. This really helped me after several videos from others, where I didn't manage to grasp the concept.
Yup very good
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
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.
+TheLpjoe thank you so much man!!! I think that documenting mistakes is the best way of understanding how stuff works 😊
Yes, IF he had explained it accurately. He completely left the accelerator pump out and without it the carburetor doesn't work!!
Where has this channel been my whole life? This guys energy is much needed.
Other biker Channels take notes! 👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾👍🏾
Of all the people out there explaining about the carburetor ....your the best man!!!...thanks mate ......
Thank you so much man!!! Appreciate the comment!! Happy holidays to you and your family!
My bike isn't idling so well and i came here looking for some help, and i digged gold. Astonishing and clear explanation.
Thank you so much :)
Man I appreciate your delivery methods, you're a hell of a teacher
thank you so much Andrew
best carburetor video, the animation is perfect to explain mostly everyting about it.
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 🤙🤘
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
Thank you Rusty, I always try to take in good info when is actually good :)
Yessir !
Learn more, better every day !
:-)
rc
the animation diagram explained EVERYTHING I didn't know about how these carburetors work, thank you!!
You made it extremely easy to understand how they work, especially with the animations. Thanks!
Best video I have seen so far explaining this. I really like the precise animations showing exactly what is going on. Very helpful. Thankyou
It is by far the best cv carb function explanation on RUclips, if not on the internet! CONGRATS!
Thank you so much man!!! Truly appreciate it
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 RUclips 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.
Very well done Sir!!! Amazing analysis in an easy to comprehend way. Thank you.
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!
Thank You 👍🏻 just what I need to see. Cheers from Western Australia 🇦🇺 😎 ✌🏻
😶🌫️
Hands down, you have the best explanation of how a carburetor works. Very very well done. Thank you so much.
Thank you very much Andrew!!! I really appreciate it 😊
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
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!
+Micscience Italian :-) i'm Italian and you are welcome. Thank you for watching it!!!
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!
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!
Thank you very much!
Great video. Diagram and adjustment walk through were both extremely helpful!
You're a really good teacher you probably hear that all the time.
no first time and I appreciate it :) thx
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!
Hi Carlo! So happy I could be of help :) I had a Virago 750 myself in the States and they are fun to drive!
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.
That's great man!!! Very glad it helped in figuring it out!!! :D
- An excellent presentation and explanation as to
how carburetor works. Thanks for adding valuable information to our knowledge. Regards
This was the only video I could find on adjusting the mixture screw. GREAT JOB, THANK YOU !!
+Jim McMath you are very welcome Jim :)
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.
True gentleman.
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!!!
This video really helped me to adjust my CVK30 carburetors on Kawasaki ZRX 400.Now throttle response is amazing,thanks mate!👍
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.
+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!
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.
So glad Stuart! Thank you
An AMAZING, INFORMATIVE, and highly ENTERTAINING video. The graphic on the inner workings of the CV carburetor are really top-notch. Grazie Mille.
Joe Kacmarynski thank you Joe :D
awesome animation explaining the workings of a CV carb
Thank you Dave :)
Great video thanks for the full in-depth explanation on CV carburetors
Thank you Pete
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.
+Bruno “Richard” Bronosky hehe, I do have one handy :)
Отличное видео по данной тематике!
Good Job. Makes the CV action clear!
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.
Thank you very much man!!! Good luck with your carb rebuild :)
that animation is amazing and totally helps to illustrate the easily confusing functions of a carb.
+Mr Sexy Time thank you very much!!!
Excellent video explanation. The animation is perfect. Clear and concise. Subscribed!
Very detailed one! Loved the way the working of CV carbs explained with the animation!
Thank you man!!!
Great animation on how the fuel / air delivery works. Congratulations - 1st class video.
Thenk you very much Steve!!!
That animation, along with your narration was so helpful!!
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
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!
Great job explaining how the CV carb works!
Thank you John :D
I like how you are delivered your message 👍
great animation, really makes it easy to understand
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.
Animation top-notch!! Very usefull to understand how a carb works. Thanks.
Thank you Diego :)
Good visualisation of the carb! Interesting.
Great animation of how the carb works and how the air fuel works
Very well put together. Great host. Great content. Thank you for your hard work.
Thanks for the help,finally set my carb to its optimum setting
so glad it was useful to you :)
The way you represented the carb in diagram was amazing... rest of the content was awesome as usual.
Thank you very much PP 😊
Great video. Carbs have long been mysterious to me but you made it easy to understand. Thank you!
thank you man! so happy that it was useful to you :)
Thank you for the animation helped me out alot.
You’re a certified bad ass for making this video so detailed. Very cool. Thank you my friend.
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
Best comment ever man!!! Thank you so much!
How does a guy from Ohio end up 9n the Philippines? I've heard theres a big bike scene over there rn. G.I.?
Muito bom, parabéns!!
Awesome video man! amazing detail. I really like how you did that animation of how it works! keep it up!
Thank you Matt!
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.
+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.
yes I wanna know what program is used. I'd love to start doing these type animations for my little vids I do
tHIS WAS MORE THAN HELPFUL !! tHANK YOU FOR THE POST!
thank you Terrin :)
the overlay diagram is super nice. 10x
+chavdar levkov thank you man!
Thankyou
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.
Probably what he's actually good at! 😂
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.
Glad to be of help 😊 let me know how it goes!
That was a great video. As a visual learner, that was exactly what I needed. Thanks!
Great animation. Best explanation yet
The best video i have seen on tuning carbs! Nice work!
Thank you very much 😊
Excellent video.Thankyou so much.
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!
Thank you Joe!!! I’ve discovered the coolest stuff by making mistakes so i see the as a “badge of honor “ 😊
fantastic info, and greatly needed too, thanks
Simply awsome man.... tune the carb with all accessories attached to it....adding filter after tuning will result in loss of duel....
Great info. Loved the down to earth explanation of the material! Super great job.
Thank you 🙏
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.
Thank you so much J.E. :) I really appreciate your comment!
No problem, sir. I look forward to seeing more from you.
Thanks man hope it all works
this is by far the best explanation i have ever seen
+KingBennon thank you so much!!!! I'm really glad this is working out for so many people!!!
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.
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.
sei forte! parli benissimo inglese e hai spiegato tutto molto chiaramente, complimenti
Great job. Clear presentation. cheers.
Very good video ,very informative on the 2 different types cv carbs 👍
There r lots of videos on RUclips but your video is very helpful for me ... Thanks buddy
Awesome going to apply this to my DR 650
Man this is so helpful! Keep the channel alive
The cgi operations line diagram is great! The rest of the video I found clear and helpful as well.
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 😊😊😊
Great video!!! Hugely helpful
Great Video! Thanks for posting!
Thank you!!!
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!
very glad it was helpful :) thx for the compiments!
Great vid. Excellent tutorial!
the best how to video for carburator ever that i whatched. thank you very much
Thank you very much man!!!
The best thing for everyone would be for people to stop trying to teach things that they don't know how to do themselves. That would clear everything up!
you did a great job, best cv carb video out there.
Hey. I come from an automotive background and the CV carbs were black magic to me. I appreciate showing me how it works!
Thank you Boyd :)
Early Honda Cars used 2 of these. My buddy's 1984 Prelude had the that setup.
Constant velocity or CV carburetor.. excellent explanation!!! Thank you!
Awesome video man, great visual aids!!!
Finally some one who understands us lol awesome very great information much needed bro
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 ;)
Ciao Alexis,
thank you very much!!! I'm very proud of this video and I really appreciate the feedback :)