Hidden Carburetor Adjusting Screws On 2 Stroke Weedeaters and Leaf blowers

[@donyboy73]

Watch my video on why your weedeater is always flooded here; kzbin.info/www/bejne/h2XRn5eZhclsbtE

[@Gods-Elect]

I bought a new carb for my trimmer ran two tanks of gas ran fine then next day or so i wouldn't start can't get it started, got spark even put new plug in still no start even put new gas line on any thoughts please thanks

[@RicardoPena-wf5ov]

Thank you my friend

[@Norn_z96]

💜💜💜

[@barrylee.freedman2203]

Your calm unhurried deliberate approach truly facilitates learning this material to a greater degree than with your peers (that is for me). So thank you!

[@russellwatson2384]

best explanation of adjustments on this little carb. when removing the barrel throttle there is a small bushing (1.0-1.5mm) that will fall out. It goes on the small pin in the side of the bore and makes the barrel cam up as the throttle opens. If the barrel doesn't rise in the bore as the throttle opens, check for missing bushing. Thanks for the information.

[@russellwatson2384]

Plastic caps on carb adjustment. Thank EPA, in the early 80's when most cars had carbs, EPA mandated restricting access to the adjustments which was in some cases a hardened steel cap over the idle mixture screw. It was a lot more fun to get it out. Be glad these plugs are plastic.

[@chicoleek]

By far the best instructional vid I have viewed regarding these little carbs... very well detailed and shot, dony. I have been watching your work for years and can't thank-you enough for your work! Just a quick note for American viewers regarding those little black plastic plugs. They are apparently required to be in place if you are a 'pro' adjuster or you can be fined...this does not apply to homeowners, just business people. Thank-you, dony! You are first-rate!

[@Daddyrabbit_2]

And ,that was the most informative video on hidden carburetor adjustments I've seen. Nice job

[@sburnham3]

Best description of High and Low adjustment

[@mikewerner3797]

Omg I am working on an echo weed eater identical to the one in the video right now. I cleaned the carb and it did not solve the problem ( bogging when throttling up)so instead of gambling on the kit solving the problem, I just ordered a replacement carb. Wish I would have seen this video before I ordered it. I had no idea that the carb had any adjustments nor did I know about the tiny jet inside the little brass thing on the side. Thanks for a great tutorial!

[@peejaygeee]

One of the best and most detailed videos on small machine on the internet bravo!

[@trainmanmills]

This video saved me a trip to the Echo dealer---I installed an after market new carburetor ($14.00) and still would not run up to full speed. Made the adjustment noted in this video on the high speed jet and it works just like new---the aftermarket carb did not have the plastic plugs to prevent adjustment thank goodness.

[@kermit30au]

Thankyou for this information. I never knew about this tool or plastic cap over the screws. After learning this I got very angry due to two workshops lying to my face.... Back in 2003 I purchased a rather expensive brush cutter that would never run right and needed to be returned often back to the shop I purchased it from. After the third month of ownership and constant breakdowns they started to charge me a service fee. I lost my temper with everything and just put the machine away for years. Years later I went to another workshop to get answers on why this machine was behaving so badly and they said like the original place purchased the device from the carburettor is "self adjusting" and nothing to tune. Ok sure I purchased a brand new carburettor from them and again the same bullshit all over again. So I just gave up with this unit and went 36v electric. I now find out there were adjustments and never needed to buy a carburettor at all. I felt I'm surrounded by thieving bustards and can't trust my local repair shops. Iv been tuning my own carburettors since I was a teenager and this damn thing had me beat. Once again thankyou for the information and help me solving this twenty year mystery

[@PAYNEKILLER..]

I bought a echo weed wacker new this spring, it runs well but is pretty laggy, takes a bit to come to life and just seems like it should have better throttle response. I believe this video gave me all I need to remedy that.

[@donyboy73]

check the muffler spark arrester screen, it may be plugged

[@PAYNEKILLER..]

It doesn't have a ton of hours on it but I will do that. Thank you

[@LetUsRepair]

Awesome video Don! I had heard of hidden screws on the Zamas but I have never seen them in such detail. Very important information to have when working on small engine carburetors.

[@adnacraigo6590]

Wow! They are really going to great lengths to make things difficult. Thanks for the info.

[@Mike-su8si]

Yup they don't want the shop guys fixing peoples stuff. they can't be that greedy to keep making things like that

[@mattxr6096]

Just want to thank you.. Watching your videos has allowed me to fix things myself. And be more self sufficient!

[@philliphall5198]

Thank You. I’ve been watching for 9 years and you have done a great job 👏

[@sundial6919]

Your the greatest Dony boy ! I really like your penchant for exact detail ! 🌞

[@holdemNE1]

Thanks for posting. I knew about the one hidden screw, I didn't realize there were 2 of them!!

[@sixstringedwithabowl]

Manufacturers producing this crap that needs proprietary adjustment tools need to be put out of business. Let’s all just stop supporting these jackoffs that think they should have the right to keep us from repairing and maintaining our own equipment.

[@AlmostHeavenCamping]

I can’t thank you enough for doing this excellent presentation video!!!!

[@aussiehardwood6196]

Great video Don I've done all sorts of work to saw carbs, drilling air bleeds, adding H needle to 3120xp, using micro drills to drill jets etc. But I've really learned something here today, the only zamma barrel carbs I have are on 2 Makita 231T (23cc top handles). And I just thought they were fixed jet carbs. I can't wait to now be able to do some tuning. Great video.

[@rogerringold616]

Too Touchy compared to ones w Hi and Lo screws.

[@louiegarcia7527]

you're the best knowledgeable info on you tube.

[@mrcelloava1076]

You explained the procedure very clear and to the point. I'm very impressed. 2thumbs up!!! Thank you.

[@jonathanhalverson2380]

Been watching your videos now for a while and wanted to say thank you for all the info along with tips and tricks that you've learned over the years. I have learned a thing at you watching your videos over the years and it has really helped out with some of my saw and small engine repairs. Just wanted to say thank you very much and keep up the good work along with the videos, God bless and be safe out there. John Halverson

[@donyboy73]

thanks John!

[@Sensei948]

Friend, is it wrong to leave the L-nozzle at full speed? Can the saw be damaged through the L nozzle?

[@KurtStevens-yi1jo]

Yesterday I wanted to adjust my carb on my Toro weedeater and I could not figure out where the screws were. Now I know. Thank you for the information. Great video.

[@YukonHawk1]

I have a Homelite VersaTool weed Wacker that I bought for 2.50 bucks at a yard sale about 5 years ago. It was manufactured in 2001 with a walbro carb. Never had an issue in 5 years. ..but now I think the diaphragm bought the farm due to age. Thanks for the tips . I know the walbro differs from Zamas carb, but the theory still applies.

[@delotv2150]

Thank you !! I watched so many videos but you was the only one that gave me specific details !

[@tonym6920]

Thanks for the vid Dony, good to know. I replaced the carb on my Echo GT-225, ran fine right out of the box so I assume these carbs are pre-adjusted. Nice to know where those screws are located. 👍👍

[@barackobama5304]

They are probably close but every operating environment is different so the carbs should be tweaked.

[@paulputnam2305]

Thank You for the Awesome information. I really appreciate you for sharing this video with us.

[@charlesoverton]

Great training . Thanks

[@robertgoora]

if there was an academy award you would be the winner of THE GOLDEN CARBURETOR AWARD !!!

[@888HUSKERS]

Very ironic because my neighbor was using his Echo and it was bogging hard every time he pulled the trigger. Great timing and awesome content!

[@rogerringold616]

Mine does it at about 20 minutes, boggs under load more and more.

[@rogerringold616]

Its a new carb...it still sucks.

[@timgrant8729]

I came here for a different problem but your video was so well done and interesting I watched the whole video. Thanks!

[@donyboy73]

Glad to hear it!

[@leeharris3061]

Such a great channel for info!! Thanks so much for showing us this trick👍

[@joshherron7]

Best video I found that explains the high AND low adjustment 🤙🏻

[@gerardoflores1218]

Thank you for your help. You and another video are the ones with the best explanation.

[@marknye51.thefixitguy]

Hello Doni.. I am working on that same carburetor which is on a Echo SRM 225 String Trimmer. This is the first time I've seen this style of carburetor with the hidden adjustment screws. Thank you so much for your video. . I'll be referring to this video tomorrow to see if I can get it to run. I also did a compression test and it's right about 88 psi.. Normally I see this with 110 to 118 psi.

[@robertlay5108]

thank you my echo weed eater is realy acting up in the past couple of days its been runing ruff and back firers one,s in a blue moon i will clean carb and ajusted these sqrews

[@rpavlik1]

Great knowledge. You know that my two cycle equipment is old when I think all of them except my chainsaw have not-hidden adjustment screws...

[@simonmorris8651]

Another great video - nice and concise, great presentation and videoing, thanks 👍👌👏

[@pavolkucek1390]

Super video I'm watching from Slovakia.

[@donyboy73]

Awesome! Thank you!

[@pureblood324]

Love your videos very technical. Just what I needed.

[@clintstevenson1214]

Dude! I idolize you! Best Carb video I have seen. Thanks!

[@V8SKULLS]

Donnie, "U" are a life saver my brother, I thank you so very much for this Video, this has been driving me crazy, replaced 3 carbs on 3 different pieces of equipment and no of them ever ran right, damn I Thank you for your time and knowledge. Daren'

[@Bungi81]

Great video, Don! Thanks. I´ve had a hidden L-screw on a cheep chinese trimmer... After (finding and) removing the black plug it was easy to adjust the carburetor 😉 Greetings from germany, Stefan

[@donyboy73]

greetings from Canada!

[@pietrosenerchia1786]

Simply the best Dony, always informative. Great tutorial...

[@pietrosenerchia1786]

😊

[@darkside9129]

Excellent demonstration buddy.

[@Mopar-Pioneer]

Hi Donny. Thanks to this vid I was able to find the hidden low speed jet on my German made line trimmer from Aldi and tune it properly !! Many thanks bud. Alex, ex pat Canuck in Australia

[@everettharwood7673]

Always the best straight facts… ALWAYS HELPFUL

[@stoolie10]

A small drill bit removes the plugs fairly easily also. The Honda 4 stroke adjustment screw is hidden like the Zama carburetor but makes all the difference in a fully functional trimmer.

[@THEMOWERMEDIC1]

Somebody must’ve watched My Video 👍

[@philliphall5198]

That’s what I first done and both ways work

[@philliphall5198]

I also watch every video mower mec 1 makes

[@nightmare69metalmatt52]

Bless you for this vid load of education here thank you thank you thank you

[@warrioryfm350x]

Your video saved me lots of time and money and frustration thanks

[@tjordan8146]

Thanks Donyboy! Been needing this and you made it happen. Great content. 👍

[@donyboy73]

have a good weekend Tim!

[@Daddyrabbit_2]

And check the muffler if that echo is bogging down,they carbon up real bad

[@nashguy207]

Great video Donyboy! Hope your wife is doing well.

[@donyboy73]

thanks buddy

[@rk22cc]

Yes great info Thanks

[@michaeljames2183]

Thank you sir! Very informative and detailed video.

[@davidgoettel957]

Not all zama rotarys use a slotted screwdriver for the idle adjustment. I have found some require a small single D, as well as a small star or a small pac man.

[@robertasleson5856]

It would be nice to stick with one style of screw!!! Have to go a buy these little screwdrivers. Ugh!!

[@Mike-su8si]

One of my straight shaft weed eaters carburetor uses a D splined tool then all my other stuff uses the regular splined tool Those little micro drill bits are handy to have around

[@semco72057]

Those are nice tips and I have jewelers screwdrivers which should be able to adjust most of those screws and I have not had any problems with any of the trimmers I currently use, but now know what to do to adjust the carburetors. Thanks for sharing those tips and I wish you and your family a great week.

[@donyboy73]

thanks Sidney, have a great weekend!

[@johnrhodes7487]

Very informative. Thanks Don. John 🇬🇧

[@andrewdickson9964]

Great video will give this a go in the morning 🌄 Thank you

[@paullemay3218]

Great information. Thank you for sharing. ❤️🇨🇦

[@SheikShak]

Love to watch your videos…..you’re the best…thank u!!!!!

[@MrGarcon98]

they are running things on the lean side these days ,,,,,thank you for this great teaching ,,,god bless ,,,,,,,mon ami

[@bradanderson1024]

DONYBOY great video , always very informational and entertaining content.

[@donyboy73]

have a good weekend Brad!

[@timothyberry1173]

Wow this was a awesome video to come across. I like your tips a lot! I had a question for ya , you said to let the 2stroke motor warm up some before making your adjustments. And that makes sense to me. Should you let 2 stroke equipment warm up at all before regular use? I do with 4 cycle equipment but not to much with 2 cycle. I’m sure you know better than anyone that the newer 2 stroke equipment these day’s seems to have a lot more issue’s than the older stuff. At least in my experience. I’m assuming that little jet you expanded with the micro drill bit has a lot to do with it? I never thought of that or realized that was possible to hone out some. This is the best thing I will see all day on KZbin! Thank you so much for sharing this info! I will definitely be subscribing to this channel. Real quick one more thing if you read these comments or see this. We run Red Max equipment atleast our weed eaters and blower’s. We have newer equipment and it’s usually the stuff that gives us more issues. I have 3 weed eaters that I kept back for my personal use. I like the older one’s. They are from year 2000 and 2001. Hardly ever have any problems with them at all , year after year. On the newer stuff is it because of that carb jet ? The one you drilled out. I’m assuming they try to lean everything out as much as possible for emissions crap so they make them to small and tight from the factory? Am I on the right track there? There are times I might assume someone didn’t mix the oil in the fuel correctly because we might have a few trimmers start running rough around the same time but that same mixture of 2 cycle oil and premium fuel in my older red max trimmers is just fine. Hey thanks again , you are the man!🍻

[@cornbinder]

Sure is nice to have somebody else find the bump's in the road for me. Thak's

[@yodasbff3395]

Good information to know 👍.

[@fraydcat]

My Zama had a brass plug on both low and high speed adjustments on my echo SRM230. I used a T-10 star drive to get it out. It bites into the brass plug and I just wiggled it out of the throttle shaft. The other high speed was the same.

[@remowb]

Excellent and educational video!

[@RollingEasy]

Excellent info as always..... Thank you.

[@TheKrayusKorianis]

I recognize the C1Q-S76 carburetor whenever I see it 🤣. I've been into a 250 so many times.

[@jensenwilliam5434]

Thank you for all you do!!!

[@joehead1294]

Before adjusting carb, make sure fuel/oil mix is fresh and correct ratio, filters are clean (air and fuel), and fuel lines are in good shape. Bad crank seals and gaskets will make you chase your tail like a dog with the air leaks that cannot be adjusted out.

[@bonzaibarty]

Excellent video! Thank you!

[@stevejensen3471]

Nice that it's easy to adjust those zama carbs with it on the blower. Unfortunately, I have the Echo PB-250 with the Walbro carb where one can't do that. Pain in the arse that one is!

[@DwayneDelacruz202]

The speed you speak at is perfect for how I learn! Great video sir! 🫡

[@johnnynewburgh9745]

Outstanding Don you do great work thank you!😁

[@tomthomas9910]

When i do a tune on a carb " first i make sure no clogged fuel filter , right mix, plug gap, clean spark arrestor , possible carbon on exhaust port , older equipment" some are gummy bears" run slow allow for heat expansion rev warm " dial in the carb" lastly, weed eaters line at proper length so" under load, braaap braaat" max tune with 91" octane & 3 oz per gal especially being smokeless & ashless , remember when Castrol pre mix smelled almost as good as BBQ

[@Patrick4959]

top stuff Donny mate as always cheers from Australia to Canada and stay safe too.

[@donyboy73]

greetings from Canada!

[@Patrick4959]

@@donyboy73 has Autumn/Fall Started yet ?

[@donyboy73]

@@Patrick4959 yes it has!

[@Patrick4959]

@@donyboy73 sweet it,s Spring here atm but we have had a bit of rain and wet weather and a bit of moisture around certain areas and Tornadoes in NSW (New South Wales) in Australia funnily too.

[@TheRustyRooster]

Now that my good sir is some valuable information thanks for sharing 👍

[@frankdodaro2522]

Hey great tips 👍

[@jimlondon1]

Handy to know this. Thanks for sharing.

[@john0119]

Great Video! Thanks for Sharing 👍

[@briancullen5183]

Thanks again Donyboy

[@lizandromiramontes661]

excellent video thank you

[@1pearldrums]

Awesome video thank you

[@Lovinflyindrones2022]

Brilliant video mate. Thanks

[@gatorgotme]

Awesome Donny! Thanks

[@johnreese3762]

Very well done, thanks!!

[@MrModmustang]

Awesome. video thank you .

[@simonescoto5844]

nice inf. I do have a ? what do you think could be the problem on a brand new carburetor that I did installed in my weedwaker and seems like no gas going. do you think I do have to do this adjustment? Thanks

[@donyboy73]

if it's the same carb you might have to

[@simonescoto5844]

Thanks a lot and have a nice day Mr.Donyboy

[@anthonynagle]

Life saver, thank you

[@netimage10s]

Excellent information!!

[@chejohnny3706]

great vid/info. esp the hi speed hiding spot

[@DavidAshcroft-eu7de]

Hi great video ,,what is the recommended pop off psi for the Walbro wyk 33 carby? Thankyou

[@isidroizazaga950]

Thanks you very much

[@DeWitteWilson]

Wow. Thank you.

[@robertbrookes7126]

Top Man!

[@ВовкаЯ-т4х]

Полезное видео! Спасибо!