Air Bypass Valve Diaphragm in a CV Carburetor (TK) YBR 125 | Carburetor Series Part 3
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- Опубликовано: 18 янв 2025
- In this 3rd video of the carburetor series I tried to explain how Yamaha YBR 125 is able to give fuel average of 50+km/L on highways.
Detailed explanation of how the air bypass valve diaphragm works and how it leans the air fuel mixture at cruising RPMs.
This CV carburetor is designed to give maximum fuel economy with least amount of emissions. This carburetor is not designed to provide sudden initial pickup but it can sustain a cruising speed of 80km with superb economy. So less fuel stops, less cost :)
Links to previous episodes of the Series:
part 1: Understand CV Carb : • Understanding a CV Car...
part 2: Idle (Pilot) circuit & Fuel Mixture : • Pilot circuit & Fuel M...
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#MotoVlogics, #CVcarburetor, #YBR125
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I am sure it will help many who want to play with their bikes mechanically :P
Salam. Apki videos kafi informative hai. AP different engine sound ki respective problems identify krne ki video banae.
W. Salaam. Shukriya G. Ok may koshish kerta hun aik brief video bananay key.
Behtareen tha
Many thanks for sharing and explaining....
Thank you for watching ...
Hello sir I am facing a problem
After cleaning my carb bike is unable to matain a healthy idal and after 6to 7k rpm it will slowly come to idle please help
I believe the air fuel mixture is too lean,
It may be because of adjustment of idle mixture screw or float level
@@motovlogics1425 thanks for replying issues has been resolved now problem was the choke membrane (dont know exact name ) it was not lubed properly. Problem was as i let go of throttle it will slowly come to idle i was really scared that i might be messed it up
Mere pas ybr 2016 model hy us ki mailage 55 to 60 hai agr 60 speed par chala jaye to.per leter.
Zabardast Bhai
App kayha sa appna ybr ki services ya tune up ker wata han
Main apni bike key tunning or service etc khud he kerta hun . But I would recommend Khaled Yamaha 1s at gajumata.
@@motovlogics1425 services or maintenance per bhi koi video banay app
Jee, zaroor
@@muhammadirfanalam9240 Sure. The name of the (2S) service center is Al-Kareem autos, 22km Main Ferozpur Road, near gajumata stop, Lahore. Khalid Bhai: 0321-4047934. Plz Call to get location.
Very nice
Part 3 part 2 se 33 second long hai 😊
Good work
Sir your theory is wrong it only works on hard declaration not on idle spring is two strong behind this diaphragm it is used to prevent from back fires during high declaration. On ideal air pass from two points one from front hole and one which is at top of carb both air holes lifting fuel from pilot jet and feed it to four holes underneath butterfly valve and mixing screw.When this small diaphragm come back on hard declaration little piston cuts upper air feed hole which is lifting fuel from pilot jet now only one pot is lifting fuel which in in front of carb hence reducing the fuel flow through pilot hole, I have done a lot of experiments on this carburettor as I converted my engine to more cc give me your number I like to talk with u are only one more person from Pk who curious about carb same as me!
Thanks for your detailed input And sharing interesting points. Yes sure , you can DM me on Instagram @motovlogics and we can talk.
@@motovlogics1425 thanks ❤️
English please