This was explained in a way where I was able to adjust my carb well. Before this video I watched other videos. I know what the adjusters were. I just did not understand their relation. I installed a tachometer thinking it would help. I searched online for the RPM range for my scooter. 1500 to 2000. I followed your instructions. The top end was 3000 RPM it would not go any higher than 3150. It would start to shut down around 1230. So B would be around 2100 RPM. After setting the mixture, I adjusted the idle where it would not bounce back and forth. The scooter started to act funny when I changed the air filter. I'm looking to change the exhast next. Again, thank you for making this video... it seems you were the right teacher for my learning perference.
Thank you 😊, glad that this video helped. I saw most of the other videos which lacked proper explanation. Hence, I made this video. Good to see this helping others 👍
Great explantion on youtube.listen video at least 4 to 5 times so that u can understand the setting.do step by step on ur scooter while playing this video
Thanks a lot..recently got my Ntorq race edition. The engine auto off 2 times today coming back from work. Thank you for your video in English. Very helpful. I understand now what happen to my Ntorq.👍🏽
i found that when the bike is fine tuned it feels very smooth and less heat in the engine.you will feel hot moisture air closer to the silencer and cool air from six inches away from silencer.
I really appreciate your way of teaching🎉🎉And i have a issue in my discover 125 cc bike bs3 model 5 speed engine. That is, i have cleaned my carburetor throughly , adjusted the tappet well,replaced with new air screw, slow speed screw ,air filter ,spark plug with geniune one & recently serviced cylinder head valves also. But when i tune the carburettor air screw when i close the air screw till the end engine gets stammering and when i rotate the air screw towards anti clock wise direction engine rpm starts to get increasing after 3 full turns ,after that engine rpm is increasing well but stays stable ,no change. After that rpm has to be reduced in one point if we rotate the rpm screw completely ,but it won't. Even if we completely loosen the air screw also the rpm wont decrease either increase in further rpm. Then when we remove the airscrew the engine gets off. So i left the air screw after 4 1/2 full turn & reduced the slow speed screw to 1000 rpm. Becoz i can't able to find the proper optimal position. So kindly guide me why it is happening & how to fix the problem, hope you will reply me, thank you.Note 👉 i have cleaned the carburettor already due to the same issue but it still exists 😢😢
Hi, first tighten the air screw completely. Do not overtighten. Start the engine and adjust the idle screw so that engine has low idling. Then start unscrewing the air screw and count the number of turns it takes to get the highest RPM. For example if you get the highest RPM after unscrewing 4 turns then the optimal position would be 2 turns from complete close position. Hope this helps.
@@autobotgeekse No, it is not a reverse threaded screw, I have confirmed. It is the same as in Jupiter. And, like in Jupiter, unscrewing it makes the mixture lean, as Nitanshu Chaudhary has correctly pointed out. That's because this screw controls the air from an air-bleed flowing into the main air + fuel stream that is entering the intake manifold, not the flow of fuel as you had said.
If your air fuel mixture screw is on the engine side, wouldn’t it be a fuel screw? Therefore turning it CW would restrict the fuel flow and lean the mixture?
Most of the carburettors will have both air mixture screw and idling screw on the same side. However, we can identify the screw type basis the direction in which screw is moving inwards or outwards. Tuning can be done accordingly
Great explained than the others... I have got 80 kmpl on my Honda shine..... But having some issues with my hero honda splendor its getting 60 kmpl I don't know the reason why. if you have any idea please suggest sir thank you...
There are other factors which affect the mileage as well. Pls watch my other video on mileage tips. Also, will be making another video on carburetor jet mod for betterment of fuel economy by 25%. Hopefully that will help you. Also, pls check your spark pulg electrode distance and carbon formation, that also affects the mileage
@@NIKKAMSUJIT if the tapered edge of the air screw is worn out then yes that will cause the issue but it is very rare unless it is damaged due to overtightening
You say that at higher altitudes air has lesser oxygen (at around 3:32), which means that the fuel-air mixture gets rich (more fuel than is optimal) at higher altitudes. And then, (at 3:36) you advise keeping air-fuel mixture rich when one goes to higher altitudes. Shouldn't it be the opposite-- if it is already rich (due to altitude) why make it more rich? Shouldn't one adjust the carburettor for a relatively leaner mixture at higher altitudes, to compensate for the rich mixture?
To increase mileage, do we have to tighen or loosen the mixture screw? I'm asking this because some videos claim that loosening will increase the mileage while you say tightening will increase the mileage.
Yes, that's why I made this video. You have to tighten the air screw. You can see my other video where I have shown the practical difference in mileage for all 3 settings (Lean, Rich and Optimal)
Thanks a lot for very well explain , my scooter honda dio when not started for one week I have to put some gasoline in the carburetor to start , can help me pls what you think the problem is ? Carbrator or something else
Thank you, probably fuel is not reaching the carburettor properly. Scooters fuel line is not linked directly to carburettor. Fuel gets pulled to manifold basis the vaccum pressure created from cylinder. Please have the vaccum line cleaned and see if there is an improvement
Would this apply to Honda navi stock carburetor? I am bit a confused since some say it is an air screw and not a fuel the one Honda navi has on the left side closer to the engine, could you help me clarify that, thank you!
Sir, The way you explained is great but i have seen pop up tital msg between video in which you apologize for rich and lean mode.. as far as i know tightening screw will consume more fuel and less air and vice versa for unscrew it. Plz explain to me !
Yes, those are the correction subtitles. I interchanged the terminologies in the audio, hence added correction subtitles. It is the air screw that we are tightening which will regulate the air to fuel ratio. If we tighten the fuel sucked will still be less when compared to lean setting.
My scooter completely uses up a full fuel tank in just a few kilometers. Since I don't have a license plate (yet), I'm not allowed to go on any main roads, and thus my rides are very short (200m at most, 3-5 times a day), but I still managed to drain the full tank within 2 WEEKS.
sir,its a air screw not mixture screw , it is mikuni variant on Jupiter, on my tvs wego max rpm comes at 1 complete screw open from bottom out. Factory setting is 2 complete screw open, I am confused which one should I keep? at factory setting when you flip the accelerator rpm doesn't become normal quickly
Yes it is Air screw. However, it's also termed as air mixture screw as it mixes air to the fuel. For Wego it takes 5-10 seconds to achieve the proper idling once de-accelarated. If you max out on RPM for just one turn, then adjust the idle screw so that the RPM is low and then try opening the air screw and see if you see a difference. Your vehicle seems to be set at high rpm idling.
@@autobotgeekse Thanks sir for reply. Observation are as follows - Max idling rpm at 1 screw open from fully closed. - Now you set idling rpm normal & start opening air screw open, Max idling rpm achieved at 1.5 screw open from fully closed & if left at same setting ,vehicle has serious starting issue. after getting tired I keep air screw at 0.75 & run the vehicle, also it is able to clear the Pollution check certificate.
@@adik9441 do you still have starting issue at .75 turn? How is the mileage? Since .75 will be a rich setting it should give good mileage. Check my other video where I have shown mileage test results for all three settings
Finally I found someone who explains in English.Very well explained.Tks mann great job.
Nice to hear it was helpful. 👍
Same here
Same
Dont u guys understand hindi??
Same here...hard for hindi
He started his explanation by saying "this is a basic carburator". This is one of the best explanation I've ever come across.👍👍👏👏👏👏.
Thankyou for your time
2:15 This is what I was looking for.... Best mileage .... Thank you so much
Welcome bro 😊
I already try this at my 100cc bike, from 15 KM/L (not kidding) to 50KM/L, it's a huge difference!
Thank you sir for the Best and Better explanation!
Wc 😊
Mine increased from 23 KM/L to 33 KM/L. great improvement indeed
@@bornfacekambatika Happy riding 👍
@@bornfacekambatika whc bike ?
You must be a politician 😂😂😂😅
This was explained in a way where I was able to adjust my carb well. Before this video I watched other videos. I know what the adjusters were. I just did not understand their relation. I installed a tachometer thinking it would help. I searched online for the RPM range for my scooter. 1500 to 2000. I followed your instructions. The top end was 3000 RPM it would not go any higher than 3150. It would start to shut down around 1230. So B would be around 2100 RPM. After setting the mixture, I adjusted the idle where it would not bounce back and forth. The scooter started to act funny when I changed the air filter. I'm looking to change the exhast next. Again, thank you for making this video... it seems you were the right teacher for my learning perference.
Thank you 😊, glad that this video helped. I saw most of the other videos which lacked proper explanation. Hence, I made this video. Good to see this helping others 👍
Direct, straight to the point. I got more knowledge on this video. Here's my like, dude.
Thanks a lot.
Wc 😊. Thank you for taking time to appreciate the work 👍
Best demonstration ever. Simple and to the point.
Thank you 😊
Thanks. This is the by far the best explanation I've seen yet.
Thank you 😊
you are the best, hands down. people with great content like this should not remind their audience to subscribe cause they definitely will.
Thank you brother 🙏
Sir your guidance from this video I'm very happy my Jupiter vehicle giving 45kms. 100rs petrol. I'm very much appreciating u sir, Thankyou
I'm glad that it helped. Happy riding 😊👍
One of the best videos on Carb Tuning and Video and Audio quality are Excellent!
Thank you 🙂
The best video ever. Straightforward. Better than other videos with a lot of talking.😊
Thanks brother, thank you for your time , 😊
very well and clear instructions, thank you for making us aware of how the carburetor tuned well. now I can do that confidently.
Thank you for your time 🙏
Well Done Sir, Thanks from Texas!
Thank you for watching 👍
This is the best explanation. Your talking is not too fast and the picture make it easier to understand. Thank you 🙏 👍
Thank you for your time🙏
Very good brother.
Many mechanics publish videos just opposite to your message.
Very useful.
Thank you brother 🙏
The best explanation i've seen in youtube so far
Thank you bro 👍
Great explantion on youtube.listen video at least 4 to 5 times so that u can understand the setting.do step by step on ur scooter while playing this video
Thank you for watching 🙏
Best explanation both through diagram and practical، thanks a lot
Welcome brother
Thanks a lot..recently got my Ntorq race edition. The engine auto off 2 times today coming back from work. Thank you for your video in English. Very helpful. I understand now what happen to my Ntorq.👍🏽
Thank you for your time
I learned more with this one video then from my dad who himself is a truck mechanic 🤣🤣👍🏼
Good to see people benefiting from this video
Good video on carburettor setting
Thanks to the maker of this video
Thank you ☺️
Very well explained bro and useful to all riders in their DIY ventures 😂
Thank you for your time, ☺️🙏
awesome thanks for the video manage to tune my GY6! Tuning starts at 5:40
Wc bro, glad this video helped 👍
Awesome video! made understanding carb tuning so simple and the graphic really helped.
Thank you🙏
Finally a good video that explane simple and effectively ❤
Thank you🙏
Thank you🙏
Very helpful video
Thanks for best explaination
Thankyou for your time 🙏
best video on youtube for explanation, thank you
Thank you for your time 🙂
@@autobotgeekse please help me
@@cskreddy1234 please check my response to your previous comment. Let me know if you need any other information
Thanks a lot man, this is really helpful and straightforward
Wc bro, thank you for your time
I got more knowledge about air fuel mixture its very helpful to me sir. Thanq soo much
Wc, glad it was helpful ,👍
Best explanation on TH-cam backing up logical facts and basic principle, without any crap and silly indian techniques 😂 of setting carburettor.
Thank you for your time 👍
I hit like button, to reduce Carbon emission on the planet. ❤ from Pakistan
Thank you bro 👍
Understands very very easily.. thank you so much..👍👌
Thank you 😊 👍
Explanation super anna really good teaching i seen more video in u tube buy is this best
I now only litilbit English
Thank a lot for your support and time.👍
i found that when the bike is fine tuned it feels very smooth and less heat in the engine.you will feel hot moisture air closer to the silencer and cool air from six inches away from silencer.
Good observation 👍
Very good English..... lovely accent....😊😊😊😊
Thank you for your time 😊
I really appreciate your way of teaching🎉🎉And i have a issue in my discover 125 cc bike bs3 model 5 speed engine. That is, i have cleaned my carburetor throughly , adjusted the tappet well,replaced with new air screw, slow speed screw ,air filter ,spark plug with geniune one & recently serviced cylinder head valves also. But when i tune the carburettor air screw when i close the air screw till the end engine gets stammering and when i rotate the air screw towards anti clock wise direction engine rpm starts to get increasing after 3 full turns ,after that engine rpm is increasing well but stays stable ,no change. After that rpm has to be reduced in one point if we rotate the rpm screw completely ,but it won't. Even if we completely loosen the air screw also the rpm wont decrease either increase in further rpm. Then when we remove the airscrew the engine gets off. So i left the air screw after 4 1/2 full turn & reduced the slow speed screw to 1000 rpm. Becoz i can't able to find the proper optimal position. So kindly guide me why it is happening & how to fix the problem, hope you will reply me, thank you.Note 👉 i have cleaned the carburettor already due to the same issue but it still exists 😢😢
Hi, first tighten the air screw completely. Do not overtighten. Start the engine and adjust the idle screw so that engine has low idling. Then start unscrewing the air screw and count the number of turns it takes to get the highest RPM. For example if you get the highest RPM after unscrewing 4 turns then the optimal position would be 2 turns from complete close position. Hope this helps.
@@autobotgeekse ok sir thankyou for your feedback let me to try 👍👍
@@rihanhameed317 wc, 👍
@@rihanhameed317solved hua I have same problem in discover 12
@@shubhampawar8608sorry for late reply Mera problem solve hua ek aleg tharikka say
High RPM pr set kiya to 1.2k chali fhir low RPM pr se kiya to 1.3 tk chali fir hmne high aur low ke beech me kiya to 1.9 tk chali thnk you sir ji
You are welcome ☺️👍
Which bike
@@Techmama01
Platina bs4 comfortec
Noone narrated details in this way.... u r a master in this session
Thank you for your time 😊
What a presentation... I am from Bangladesh ♥️♥️🇧🇩🇧🇩🇧🇩
Thank you 👍
Crystal clear explanation..❤️
Thank you 😊
Best explanation so far ❤. subscriber gained with Notification 🔔
Thanks a lot. Much appreciated🙏
very well explained. I am now getting better milage on my tvs super xl heavy duty with your help.
thanks🙂🙏
Wc bro 👍
That was so helpful, Thank you brother !
Welcome bro 😊
Thank you very much, the best explanation 😊
Thank you for your time 😊
Very informative and very well explained.. 👏👏
Thanks a lot 😊
whoever made this . bravo . thanks
Thank you for your time 😊
after watching huge number of video found the best one which position should i stay. thanks budd.
Welcome bro, glad it helped
Good job sir, im 1 of your subscriber from philippines
Thank you for subscribing 😊
Great video very helpful and explains perfectly
Thank you 😊
Thank you sir... I'll try this soon...
I have starting problems in winter
Wc 😊
@@autobotgeekse and sir please make a video for timing chain advantage / disadvantage
Sure, will try.
Perfect settings explained. Thanks bro❤
Wc bro 👍
That's how it's elaborated precisely. 🔥
Thank you for taking time 😊
Such a good explanation and clear with it sir. Thank you for sharing👍🏻
Cheers 👍
You deserve my like and im already did like your video😊
Thank you bro 👍
Best scientific and logical explanation
Thank you, glad it was helpful 😊
The perfect video, i was searching for
Cheers 👍
great explanation! thank you ❤
You are welcome 😊
Great explained
Thank you
oh yes....glad I found this video..
Thank you for your time🙏
wow, great explanation. Thank you, and subscribed.
Thank you for taking time to watch the video 👍
Cristal clear explanation 👍...
Thank you
Very very helpful brother
Thank you brother 🙏
Nice presentation ...
Thank you 😊
Excellent explanation
Thank you 😊
❤❤❤ Great work 👍
Thank you 😊
in my tvs ntorq, turning the screw clockwise makes the fuel mixture rich.. and anti clockwise makes it lean
Might be a reverse threaded air screw. We need to identify the direction of rotation which increases the RPM. That will be rich mixture setting.
@@autobotgeekse No, it is not a reverse threaded screw, I have confirmed. It is the same as in Jupiter. And, like in Jupiter, unscrewing it makes the mixture lean, as Nitanshu Chaudhary has correctly pointed out. That's because this screw controls the air from an air-bleed flowing into the main air + fuel stream that is entering the intake manifold, not the flow of fuel as you had said.
Yes, you are right. Added correction subtitles where necessary. Thank you.
@@subratabn thanks for backing me up brother
@@nitanshu_c Thank you for highlighting this initially. Appreciate your feedback. It will help me to make better videos. 👍
Yamaha SS 125 bike. How to set maximum mileage? Also guide setting spark plug gap without tools.
It will also have the same setting, however the idle screw will be different. Will try to make a video for spark plug
If your air fuel mixture screw is on the engine side, wouldn’t it be a fuel screw? Therefore turning it CW would restrict the fuel flow and lean the mixture?
Most of the carburettors will have both air mixture screw and idling screw on the same side. However, we can identify the screw type basis the direction in which screw is moving inwards or outwards. Tuning can be done accordingly
Great presentation 👏👏
Thank you 😊
Thank you for this brother!
Welcome bro 👍
Best carburetor tuning video...
Thank you 😊
Very useful and great explanation
Thank you 😊
Great explained than the others... I have got 80 kmpl on my Honda shine..... But having some issues with my hero honda splendor its getting 60 kmpl I don't know the reason why. if you have any idea please suggest sir thank you...
There are other factors which affect the mileage as well. Pls watch my other video on mileage tips. Also, will be making another video on carburetor jet mod for betterment of fuel economy by 25%. Hopefully that will help you. Also, pls check your spark pulg electrode distance and carbon formation, that also affects the mileage
@@autobotgeekse I cleaned spark plug, also checked tappet gap, and tyre free.. Every thing is prefect... But can't get the problem.. 😔
@@autobotgeekse is there is any problem in air screew, if it gets wear out?
@@NIKKAMSUJIT if the tapered edge of the air screw is worn out then yes that will cause the issue but it is very rare unless it is damaged due to overtightening
@@autobotgeekse actually sir my bike is 22 years old so may be it would be the reason...
You say that at higher altitudes air has lesser oxygen (at around 3:32), which means that the fuel-air mixture gets rich (more fuel than is optimal) at higher altitudes. And then, (at 3:36) you advise keeping air-fuel mixture rich when one goes to higher altitudes. Shouldn't it be the opposite-- if it is already rich (due to altitude) why make it more rich? Shouldn't one adjust the carburettor for a relatively leaner mixture at higher altitudes, to compensate for the rich mixture?
Yes.. What he said is wrong. For higher altitudes it should be lean mixture.
Yes, you are right. Added correction subtitles where necessary. Thank you.
Currect.. I also thing why this wrong
@@Phoenix-mh hope you can see the correction subtitles now? Just checking
Now i understand how they tune a carburetor.
,👍
To increase mileage, do we have to tighen or loosen the mixture screw?
I'm asking this because some videos claim that loosening will increase the mileage while you say tightening will increase the mileage.
Yes, that's why I made this video. You have to tighten the air screw. You can see my other video where I have shown the practical difference in mileage for all 3 settings (Lean, Rich and Optimal)
Thanks a lot for very well explain , my scooter honda dio when not started for one week
I have to put some gasoline in the carburetor to start , can help me pls what you think the problem is ? Carbrator or something else
Thank you, probably fuel is not reaching the carburettor properly. Scooters fuel line is not linked directly to carburettor. Fuel gets pulled to manifold basis the vaccum pressure created from cylinder. Please have the vaccum line cleaned and see if there is an improvement
very well explained.. I have lost these screws of my suzuki samurai where can we buy these screws online.
Thankyou, you cannot buy new ones. You may want to source them from used parts store
Would this apply to Honda navi stock carburetor? I am bit a confused since some say it is an air screw and not a fuel the one Honda navi has on the left side closer to the engine, could you help me clarify that, thank you!
Incredible, keep it up
Thank you🙏
Thanks. Great content.
Welcome, thank you for your time
thanks for your outstanding video
Wc brother. Glad it helped 👍
Decent explanation
Thank you
You means rich mixture= better mileage?
Yes
Simple effective results thanks!
Wc bro
Thank you.
So helpful video.
Wc, thank you for your time 👍
Very good interpretation 👍
Thank you 🙂
Very Nice. Great work!
Thank you 😊
Define nicely... Thanks
Thank you 😊
Sir pl explain lml star euro 150 complete overhaul
This scooter is very rare in my location. Will try to find one.
Superb understanding
Thank you
Very well explained
Thank you
Sir, The way you explained is great but i have seen pop up tital msg between video in which you apologize for rich and lean mode.. as far as i know tightening screw will consume more fuel and less air and vice versa for unscrew it. Plz explain to me !
Yes, those are the correction subtitles. I interchanged the terminologies in the audio, hence added correction subtitles. It is the air screw that we are tightening which will regulate the air to fuel ratio. If we tighten the fuel sucked will still be less when compared to lean setting.
can u also make a video on how to choose jet
Sure, will make one
Sir I need to visit you once regarding my Thunderbird X carburettor tuning
I am in Visakhapatnam
Bajaj pulsar ns200 bs4 how many rounds should the air fuel mixer screw rotate for best performance and mileage
Plzz tell me.....
Number of rounds are not the same for all vehicles. Hence, you will have to follow the steps in the video to find the optimal position
My scooter completely uses up a full fuel tank in just a few kilometers. Since I don't have a license plate (yet), I'm not allowed to go on any main roads, and thus my rides are very short (200m at most, 3-5 times a day), but I still managed to drain the full tank within 2 WEEKS.
Oh, that's not good. There may be multiple reasons. You will have to get it checked by a mechanic once.
Good presenration.
BUT
Kindly correct the term RICH and LEAN.
If i am not wrong
Turn clockwise to RICH, anticlockwise to LEAN
Thank you, yes I did add the correction subtitles for this long back. Are they not visible?
sir,its a air screw not mixture screw , it is mikuni variant on Jupiter, on my tvs wego max rpm comes at 1 complete screw open from bottom out.
Factory setting is 2 complete screw open, I am confused which one should I keep?
at factory setting when you flip the accelerator rpm doesn't become normal quickly
Yes it is Air screw. However, it's also termed as air mixture screw as it mixes air to the fuel. For Wego it takes 5-10 seconds to achieve the proper idling once de-accelarated.
If you max out on RPM for just one turn, then adjust the idle screw so that the RPM is low and then try opening the air screw and see if you see a difference. Your vehicle seems to be set at high rpm idling.
@@autobotgeekse
Thanks sir for reply.
Observation are as follows
- Max idling rpm at 1 screw open from fully closed.
- Now you set idling rpm normal & start opening air screw open, Max idling rpm achieved at 1.5 screw open from fully closed & if left at same setting ,vehicle has serious starting issue.
after getting tired I keep air screw at 0.75 & run the vehicle, also it is able to clear the Pollution check certificate.
@@adik9441 do you still have starting issue at .75 turn? How is the mileage? Since .75 will be a rich setting it should give good mileage. Check my other video where I have shown mileage test results for all three settings
@@autobotgeekse
at 0.75 no starting issue, actually I got tired of starting issue. at 0.75 avg is between 30 - 34 max .
@@adik9441 ok, then that must be the ideal position