Two-Stroke Scooter / ATV Carburetor Settings And Adjustments 2of4 : Idle Speed & Mixture

Part 2 of a 4 part video detailing all of the basic settings and adjustments of the carburetors found on Minarelli / Jog / 1E40QMB powered 50-90cc scooters and youth ATVs. Part 2 shows how to adjust the idle speed and mixture settings. Please like the video if you found it to be helpful.
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#CarbTuning #MixScrew #IdleSettings

[@PhuriousStyles]

Dude you need a medal for how consise and accurate your information is here! Perfectly broken down so that even laymen could grasp the workings well done sir

[@robfraser33]

I agree. I was having so many problems and getting excess information on other channels. This broke it down barney style!

[@braap-a-holic69ridetillidi99]

Finally someone with time to show how its done right 👏

[@Takeit2kyle]

Finaly a simple video that gets strait to the point and is broad enough to give a general but great understanding I thank u for this

[@jamppa80]

Hello My name is Jani Soini and I'm from Finland and I removed the restriction from my exhaust pipe. Now I have to change the main jet to a bigger one but don't know what sice... My friend's say that if I don't change it to a bigger one the motor might be ruined. Can you please please help me!?? 😯 I have a sym Jet euro x 50cc scooter. Can you tell me what size pilot jet is good for my bike ? I would be forever grateful if??

[@danielduflot5388]

Bonjour mon j ai un petit prommble avec mon carburateur quand mes le pleins je fait une journée avec le scooter c est un imf

[@nicumartac670]

@@jamppa80 11111¹

[@baglifetrapstar5376]

🤣😂😭🤔😂facts

[@tinyturbo7664]

By far the best and easiest well said of this type of carburetor adjustment on KZbin.

[@pcmcobra]

great video and breakdown. my kids little atv was idling rough, thumping...and backfiring every so often. Adjusted the idle and richened it up a little bit, idling like new, smooth, and no backfires. Thank you!

[@RysReviews]

Great video. Simplifying the dark art of understanding a carb. Much thanks.

[@p.c.h.6721]

Man, this is the best video I’ve seen on how to set the idle speed, you have saved my life. I’ve been trying for weeks to find someone to teach me and no one really knows how to properly do what you have just explained, not even the so-called experts. Thanks to your video now I know how to do it, I can’t wait to go tomorrow and set my DD2 rotax carburetor and FINALLY be able to drive like it’s supposed to. One again, THANK YOU SO MUCH 🙏👍👍👍

[@Mr65Mee]

Good job you came right to the point . Some guys talk to much about things that has nothing to do with the subject. Good job, very helpful.

[@49ccscoot]

Thank you.

[@charliegale8375]

Able Reyes jthe

[@mandingo4698]

I agree.

[@lakinduanuhas7878]

After 8 years,and right on time when i needed this,great work and thank you

[@dkm016]

Haha! Me too. I'm guessing it's 2-1/2 turns as mine was never adjusted properly..

[@skisuit]

I’ve been looking a video like this for months!!!! Perfect

[@pavelmichalek108]

Thank you for this simple video without any bullshit, nicely straight to the point

[@ramsayfraser2003]

Can’t even explain I’ve been trying to find this video for forever exactly what I needed you helped a lot ❤️

[@nickklein9715]

Finally a video for novices, thank you!!!!

[@rhadiem]

Thanks so much man, this is what I needed to know. Not many carb videos cover both both screws.

[@bilderothchild3107]

Minus both

[@christopherzuckerman6784]

Thank YOU!!!!...not TOO technical; straight forward. I've owned 70's thru 90's motorcycles(n cars) but these tiny carbs are SO sensitive--the lazy part of me wanted to just buy a NEW carb online without manual choke...but THIS video gave confidence that all these giant BOOK manuals have given me (tiny print; way too general, etc..)

[@ndominguez1982]

im working on an '85 Honda Aero 80cc thats been in an attic since 1987 with a full tank of gas. These past few days have been a nightmare! Turns out, they havent made gas tanks for this scoot since '87, and this is too far beyond repair. Ive worked on tons of Chinese scoots using your help. Now, I can thank you for helping with this one. The air restrictor was stuck wide open due to some gunk build up even after ive cleaned and rejetted. i finally just looked throught the dang thing after this video and saw it stuck wide open. Its too late to try and get it running tonight with the kids being asleep, and I have to work all day tomorrow. Now its going to be on my mind all day! Thanks AGAIN!

[@49ccscoot]

Good luck with it. Hope that does it for you.

[@brunocelano5059]

Muito obrigado pela super dica,eu tenho uma yamaha Jog 50cc e demorei muito pra encontrar o ponto certo da regulagem do Ar e da marcha lenta,agora deu certo 😘👍🏼👌🏼 Tank You Man 😎👍🏼

[@musician48195]

Because of you my Yamaha CA50 runs again . Thank you for a very easy vid that most of us can understand.

[@49ccscoot]

Glad to hear it!

[@simonManleeeee]

Thanks for the video, useful stuff

[@kevinstearns4198]

this is the best guy for these videos.

[@michaelwalker2345]

This helped me a lot with my honda City express from 1989. Thanks :)

[@jimbob12382]

Very good video straight to the point no messing about thank you!

[@AntonyCartwright]

Yes!! Finally... A simple explanation. Thanks!

[@robfraser33]

Thanks for breaking this down barney style! Helps 100%

[@mikkelkjrulff359]

this is exaclty what i've been waiting for, this is EXACTLY I don't mean to sound like Katt Williams but this is exactly what I've been waiting for

[@TheJonc900]

thank you a video where i actually learned something

[@simonc5313]

Thank you. My little lads quad bike idles beautifully now.

[@stfuandLiftBtCh]

Yes. Like below said. Simple and easy. Thanks.

[@wassonii]

Thank you! I've been having a carb issue(keihin pb16/kymco like 50 2t) & took it apart for the first time today. At a point when changing the main jet (w/out fully removing the carb from the engine) I 'adjusted' the float w/out realizing. I put the carb back together properly, but the engine isn't firing (w/good spark and compression). A suggestion has been made to alter the idle mix since my plug is wet. My carb is different than this one, but it is very helpful to get a visual & explanation.

[@girishkarajgi2732]

thanks man. Found it Really help ful.

[@EdwardStorlien]

Great video, keep 'em coming!

[@zeushernandez2449]

Yup thank you officially I just adjusted both my screws and it’s running perfectly thanks bro really appreciate it wish I could give u more 👍🏻because I would

[@CapeComorinStudios]

Thanks for the very best explanation of all screws. Thanks again

[@jalaj121]

Thanks for the video... It was very helpful...keep it coming...

[@jeffrogensues6617]

KISS, you are the champ Thank you

[@Platinumtag]

Just the right info i needed..

[@jr260551]

This is great, similar principles to italian scooters i.e. derbi model with piaggio motors. My Scooter was running way too rich as indicated by the soiled spark plug. The scooter recently developed a significant vibration at about 1/4-1/2 throttle and at idle. After turning the idle mixture screw out about 8 full turns, the scooter idles much more smoothly, doesn't lag on take off and doesn't vibrate anymore. It actually has never ran this smooth. Great explanation of the process and how the carb works! Thank you. 2007 Derbi Atlantis Bullet 49 cc with piaggio engine.

[@49ccscoot]

Be careful. If turned out too far the screw gets loose and can loosen further with vibrations and end up falling out. Replace the idle/pilot jet if necessary to make sure the screw can be adjusted without it being too loose.

[@uvkvk]

Best explanation ever👍👍👏

[@barnesandrewj]

You a legend dude, thank you!

[@67kneil]

Very well explained and detailed

[@shawgisiddig5548]

Best video on KZbin

[@zameerramdianee5718]

Totally helpful while you were showing how it works inside the carburetor.

[@cesarchd6499]

Excelente video amigo desde Colombia gracias

[@zeushernandez2449]

THANK YYYYYOOOOOUUUUU!!!!!!!!!!!!!!!!!! I been looking alllll day to c what this 2 screws do to my mini bike jeez. Finally to the point. Great no no no awesome vid bro thanks for the info I DEEPLY APPRECIATE IT P.S. I gave u a 👍🏻 u more than deserve it

[@dunfordhousedunford7282]

Great vid. Thanks!

[@herminigildodelacruzjr1752]

all your video are so clear and easy to understand again pls continue to make more video thanks

[@49ccscoot]

Thank you. I will keep going.

[@yohanmendes8038]

Wonderful buddy very informative thank you so much

[@peterandmelissaholmes9862]

Top video mate

[@charliemcintosh93]

THANKS.. BIG HELP AND EASY TO UNDERSTAND... 5 STARS....

[@BrodyCox]

I've got an '86 Jog as well, and I know exactly what you're talking about. Usually this was done by the factory as a way of discouraging people from tampering with air/fuel mixture adjustments and adding aftermarket components. A real pain, I know. I got a Chinese clone carburetor for mine, which had the air/fuel mixture screw. Took some modification to get it in, though...

[@zsomborszatmari1518]

You dont know how mutch you helped me. Thanks!

[@oliver5976]

Fantastic video thanks man

[@wouterparmentier7297]

Good explanation man, Top!!!

[@jhunel1369]

nice.. now i could simply tune up my motorcycle. tnx

[@user-Chaseanoris]

just love this video great sir

[@mowerrepairshopfortscottkansas]

Thanks For The Tips

[@blakeypoo4u132]

Awesome video

[@usermax56]

Will do, thank you.

[@2wheelfamily493]

Very Good Video helped out alot thanks

[@smicka123]

great video dude :)

[@DimebagCFH4Life]

Hey man thanks for the video I used the guide on my kymco agility 50 its a different version of the carb but its the same thing. the sweet spot for my scooter is 3 full turns out from all the way in. My scoot doesn't have a tach but i basically set the idle to a hair under the tyre starts moving which is nice. I will suscribe to you its hard to find people there days that can even service a carb, Well at least locally lol cheers

[@Super1handed_rc]

I just got a 450$ Chinese scooter and man the carb is giving me a real hard time I ordered a new one after trying to clean the old one several times but your videos have helped so so much thank you

[@49ccscoot]

Glad they helped!

[@kennystrosse121]

Thank u for the help

[@godfreygiddings2275]

Yo bro u really helped me bro best explanation lov it now ik how to set me screws

[@cooperman38]

Brilliant informative video THANKS

[@alimsuzuki8125]

good job

[@markgilham2453]

Thank you

[@arslanhaider1455]

thank u very much sir for free knowledge

[@49ccscoot]

Glad to help!

[@RobbiRocks]

It's difficult to adjust these to that "Sweet spot" when you can't get the engine starting to begin with

[@naceurfarassino6493]

thank you

[@paulhammond3590]

This has made a lot of sense because soon as the vacuum pipe is on it doesn’t start use a vacuum pump tester it works I’m guessing ether the carb or vacuum tap isn’t working properly

[@joelkenndal8552]

Good video

[@bobbondarul7448]

Nice

[@josepeixoto3384]

9OGTVert By far the most informative video i found on the mixture screw adjustment; And, as i suspected, my pilot jet is TOO SMALL,or partially plugged(air screw ALL the way in). Thanks a lot.

[@cubey]

I lost the pilot screw when riding a Honda Spree years ago. Somehow it kept going and got me home. Same for when one of the carb bolts fell out and I had to zip tie the carb on to get me home.

[@jroberts2226]

A well made video and a good insight to carburettors. It would be even better if an explanation was given as to what the outcome would be on the different adjustments made . Still a Ten out of Ten on carbs. Thank you 90GTVert.

[@49ccscoot]

Not a video, but here's more info on carb tuning : www.49ccscoot.com/faq/carbtune.html

[@shanelord5012]

Thanks

[@RCLaROCK1]

well done...

[@49ccscoot]

Thanks.

[@sunairjet]

The exhaust has been adjusted properly many times. But just kick starting it (Before the engine starts) it sounds exactly like a motocross. And it has that pure 2 stroke smell all the time.

[@williamedwards7315]

I've looked up how to adjust mixture screw 300 times in the last week no one said anything about trying to get it to idle as high as you can with the mixture screws no wonder why I can't get my sled mixture screws right now tomorrow I can go out there and turn them one and a half out and then start turning them until I can get my highest idle and then back off my idle screws until I'm at my preferred RPM idle thank you !!!!!!!!!!!!!!!!!!

[@49ccscoot]

Hope it works out better for you this time!

[@alanblenkinsop2775]

Excellent tutorial will try this on my 350 LC it’s bogging at low revs up to 3000 rpm then it’s off like a scolded cat nice work mate

[@49ccscoot]

Give it a try since it can be quick and simple if the carb is easy to access. If it's RPM dependent and not throttle position dependent though, you may have something else going on... like a clutch issue for example.

[@ferdinandcea956]

The Stroke 😊

[@ballstank3904]

Loved the ending...." Clockwise to errr...toward rich " lmao

[@wassonii]

Right on. Thank you! Kymco has this one so restricted, there is no control over air/fuel mix (other than the idle mix) and the needle can't be adjusted.

[@jonah5908]

This is the best fucking video I've ever seen

[@MH.Stunting]

thanks

[@Reagan.22]

Helpfull

[@crisrose9707]

i went to subscribe but the i realised i was already subscribed XD i must have done it a while ago XD

[@jeremyturner6173]

Another great video. I been haiku problems with my carb sticking

[@49ccscoot]

That could prose quite a problem. A lot of times sticking is from the cable/throttle setup so check those.

[@jeremyturner6173]

I had time to take off and clean. Since we had all this rain. Seems ok now

[@49ccscoot]

+Guajiro Konn You've pressurized the cases (about 6psi) and made sure pressure does not escape? Checking with propane, water, carb cleaner etc... for intake leaks is not always effective on a 2T. Reeds in good shape? Float height set properly?

[@kellenwilson6178]

hey I just picked up a eton beamer 2t and it idles too high even with the idle speed screw at its lowest setting, would i have to adjust the mixture setting? or is it a different problem?

[@49ccscoot]

Make sure the cable isn't pulling the throttle open. There should be adjusters. One at the handlebar and one at the carb. If there isn't a small amount of slack it'll hold the throttle open. Could be that you need to adjust in more fuel or have an air leak as well.

[@kellenwilson6178]

thanks for the info will take a look at her tomorrow.

[@donovanmedeiros5708]

Pornhubyoungteen video

[@smilernok]

tanx :) nice and simple

[@SHOR78R34D96]

Hello sir! first of all thankyou for this video it was very useful to me, secondly, which would make my moped run better/quicker/more fuel efficient.. a standard air box (installed) or a cone shaped air filter. many thanks. Jono

[@basimfara]

Hi thank for this a value video I really learned a lot. I wish you make a video adjusting the air screw&idle screw on a live motorcycle so we can hear the best idle and recognize the sweet spot.

[@49ccscoot]

kzbin.info/www/bejne/a4TYen9vetmIkJIm15s

[@basimfara]

I repeated this clip so many times, almost I succeed . Regards

[@alexjhill408]

Nice video

[@49ccscoot]

Alex Hill Thanks!

[@alexjhill408]

***** Ya man, took my bike out of the garage and was looking to improve the idle. Didn't really know how the mixture screw played in to it. But now the low end throttle response is much crisper smoother and quicker.. Also let the bike idle for over 10 minutes with no clearing and it was nice and consistent the whole time.

[@Reagan.22]

Good

[@peterbrockob6663]

, Peter Roller Legende

[@wkreps]

Thanks for the vids. Very helpful and used it to help me disassemble mine, clean and put back together. Mine is on a 1986 Yamaha Jog but it doesn't have an idle mixture screw. The port is there but it is filled with hard plastic (like from a hot glue gun) at both the screw positions and the air intake port. Why would this be?

[@04mudder]

I cleaned the carb and its clean as hell now should i make the idle mixture richer

[@49ccscoot]

I know some older Yamahas didn't have mix screws, but I don't know the reason.

[@VLDSOUND2]

You would have a video showing how to disassemble the carburetor from the bike? She is a 2001 yamaha jog teen forced Congratulations for your videos