Carburetor Rebuild On Stihl FS38 Grass Trimmer

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Carburetor Rebuild On Stihl FS38 Grass Trimmer

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Күн бұрын

Carburetor Rebuild On Stihl FS38 Grass Trimmer
In this easy to follow video tutorial I show you how to rebuild the Zama carburetor on a Stihl FS38 grass trimmer. Some symptoms that may indicate that your carburetor needs to be rebuilt are that it may bog down when you throttle up, adjusting the carb makes no difference, only runs on full choke, lacks power, very hard to start and possibly many other symptoms.
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Easy to follow and thorough step by step tutorials do it yourself (DIY) to help you with your broken lawn and garden equipment including snowblowers.
I do my best to teach you how to easily diagnose problems the fastest, quickest and most efficient way with real repairs beyond just replacing a spark plug. These tips are for both the homeowner and shop owner.
Whether it be a handheld, two stroke, two cycle engine like a chainsaw, weed eater, weed wacker, string trimmer, grass trimmer, line trimmer, hedge trimmer, strimmer, brush cutter, leaf blower, or four stroke, four cycle units like a lawnmower, wood splitter, lawn tractor, snowblower, pressure washer, generator or a ride on mower that needs parts installed or replaced, I’m your go-to guy.
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Пікірлер: 385

@donyboy73 4 жыл бұрын

ALWAYS USE HIGH OCTANE FUEL WITH NO ETHANOL TO PREVENT DAMAGE AND COSTLY CARBURETOR REPAIRS ON YOUR OUTDOOR POWER EQUIPMENT!

@donyboy73 4 жыл бұрын

@David bannister stihl dealer

@donyboy73 4 жыл бұрын

@@tiesmanders3681 if it looks the same it should work, I often interchange carbs on those stihl trimmers. i.e. fs38 carb fits on fs55

@donyboy73 4 жыл бұрын

@@tiesmanders3681 check with dealer

@troylaboon2098 4 жыл бұрын

Zama d m v 56

@leoll7380 2 жыл бұрын

where did you buy these rebuilt kits? Do you have locations or links? thanks

@cherylmills150 4 жыл бұрын

Nothing short of a professional how-to video! I am appreciative of the magnified video, speed of delivery, cautionary considerations, and alternative approaches!!!! Donyboy, you are excellent teacher!!! Sincerely grateful for your video!!!!

@DoingItCheap 8 жыл бұрын

I am almost 60 years old and never truly understood these little carbs until now. Thank you for taking the mystery out of these little patience testers !!!!!

@shawnred5546 4 жыл бұрын

I spent 16 bucks on a China carburetor and replaced my car using this video, still going strong 3 months later after heavy use! Thanks for the clear video and great angles!!!!!

@jackhughes8089 10 жыл бұрын

One of the best instructional videos I have ever watched. Very helpful! Good job!

@r.k.werner2688 4 жыл бұрын

Thank you so much! Found my screen was clogged and cleaned it. Now my trimmer’s running like a million bucks!

@chrisbacon7308 10 жыл бұрын

Once again, your video allowed me with my very limited knowledge and skills of small engines to get my trimmer running 100%

@donyboy73 10 жыл бұрын

hey nice to hear!

@loknlode 12 жыл бұрын

Wanted to say thanks for all of your vid's. I got an old Toro mower a few years ago for free. It ran good, but only on full throttle. It worked, so I didn't worry about it. Last week it started running rough, like it had some dirt in the carb. Thx to your videos, I pulled the Walbro Carb off, checked it out, cleaned it, fixed the low idle return, adj. the mixture, set the idle and she runs like new! Because of you, I'm almost done with my old 3 HP, side exhaust Tecumseh project. Thx Donyboy!!!

@kilts4u2 6 жыл бұрын

Awesome video Donyboy. I"ve rebuilt carbs on 4 cycle engines so I had a pretty good idea on how my Stihl grass trimmer would work. I actually took it off and cleaned it just as you described. However, I forgot to check that fuel filter--which is very important. And. .I didn't clean that valve orifice inside. Normally I use a thin sewing needle to physically clean these out. I've found that physical cleaning is surefire versus carb cleaner which doesn't always break up ethanol gasoline. . another bad idea to use. Live and learn. You've done a fabulous job with your presentation as well as the tone of voice. This couldn't have been any better with a hired actor. Well done ! You're a very good teacher. Love my Stihl.

@thomaseaves8115 7 жыл бұрын

I replaced the fuel line and fuel filter in my FS55 trimmer today using this video as a guide. Also cleaned the carburetor and fuel tank as you show here as well. Thank you for posting, I've passed on your channel to several friends.

@donyboy73 7 жыл бұрын

you're welcome

@thomaseaves6119 7 жыл бұрын

I used this video twice this year to get my trimmer running. The first time I ordered the wrong carb rebuild kit. Seems there are several similar carbs on these machines with slightly different shaped gadgets. Thanks again, big help. Saved me $100

@johnvandyk8904 4 жыл бұрын

Donyboy73, when it comes to my rebuilding my equipment, I am almost fearless. My trimmer ran like a sack of hammers so with this video I installed the #100 kit and it started right up. Last week I replaced a split fuel line on my chainsaw. The High / Low screws were a mystery, but I think I have them figured out. Many thanks for showing me how to do it.

@rubbadee1 12 жыл бұрын

First of all, thank you, thank you for all of the videos you make. I truly appreciate all the hard work you put into making the videos so clear and understandable. Using your tips I fixed my neighbor's dead lawn mower and power washer. Rob in Florida

@rubengonzalez5921 4 жыл бұрын

i DONBOY...I BOUGHT A STIHL FS-38 AND AFTER A YEAR, I CHANGED ALL THE DIAPHRAGMS AND GASKETS... VERY GOOD EXPLANATORY VIDEO ... THANKS.

@mojavegreen2923 2 жыл бұрын

Best carburetor rebuild video out there, and I've probably seen them all! Seen them all because they are all lacking minor/major details that end up being crucial for a successful rebuild.

@bryanthompson7623 4 жыл бұрын

The best instructional vid I've ever seen. Great job donyboy!

@dgabor123 12 жыл бұрын

this is absolutely the best carb rebuild video on youtube! you are so good - everything was crystal clear to follow. next weekend i'm rebuilding!

@martinclowes2132 9 жыл бұрын

A great video. Thanks. I have a HS45 hedgetrimmer with same carb that wouldn't rev high although idled OK. Found a few tiny bits of dirt under metering diaphragm. Cleaned this and the jets as you described - great tip about wire from a brush for this. Works perfect now.

@6548ww 9 жыл бұрын

this is the most ((DETAILED)) STIHL carburetor rebuild on KZfaq,,you covered every aspect of rebuilding this carb step by step,,I learned a lot thx man

@donyboy73 9 жыл бұрын

thanks

@ringsidejudge4302 Жыл бұрын

Remarkable video . Just a pure and perfect demo of how to do a carb rebuild . Without a doubt it is the best on YT .

@rwdplz1 12 жыл бұрын

Awesome video! The Stihl FS 45 is nearly identical. Local dealer wanted $40 for rebuild kit, so I just got diaphram and gasket for $10. Put it in and ran like crap under load. Checked the owners manual, reset H, L, and LA screws to factory settings, and now it runs like new!

@brucehogarth-jones3168 7 жыл бұрын

I only recently started maintaining my own garden machinery and these videos are SO clear and useful - thanks!

@davidyoung5850 7 жыл бұрын

Still primer bulb

@captaindeadpool1640 2 ай бұрын

Still the best carb video. I just found it I had already replaced everything and couldn't get the throttle cable on the carb good and it was running fast at idle to the point that the head was turning only way I could slow it down was to turn the choke on a little. I am going to see if i can roll the throttle around tomorrow and see if i can get it to seat down in it then it would lower the throttle.

@MrFreeze79 6 жыл бұрын

I found the whole carb brand new with gaskets for about $17 on ebay and amazon. thank you for the video, very informative! it's good to learn how the little parts all work.

@eddieguerrero6845 4 жыл бұрын

You should teach people how to make KZfaq videos.... you were perfectly informative and perfect step by step information... thank you.

@ervinleonard 7 жыл бұрын

Thank so much for this video. I would never known how to do this. My trimmer is running again!

@tonywelch7786 8 ай бұрын

Good quality video footage, easy to see. Precise instructions. Thanks. The problem I had was the air filter bracket was moulded in such a way it prevents a standard 8mm socket from getting to the nuts...a cunning plan.

@Jim-ie6uf 4 жыл бұрын

This my Saturday project. I think I’m gonna need the little reddish duckbill valve under the primer, too. This trimmer is 3 years, and it’s never been right. Haven’t used it in at least 18 months. It’s just a backup for my Echo. Thanks.

@lynnenux5763 11 жыл бұрын

Best DIY video I've seen - by far. Thank you for taking such care to make it so professional. I watched it last week, then checked my FS45 which bogged down when opening the throttle. Didn't rebuild carb. just blew through fuel lines and filter. Put zip ties on fuel lines as the tubing seemed a bit loose. Result: Like new again, no hesitation on running straight up to full power. This week, horror! It was back to square one. Terrible bog down, no power. Life is so cruel!

@BlackFlagPrepper 4 жыл бұрын

I just fixed my FS38 in a few minutes thanks to this video. I was so close to throwing it in the trash!

@alial-mudafer7711 8 жыл бұрын

by far the best carb re-build video on the internet. perfect for those re-building for the first time. Many Thanks :)

@donyboy73 8 жыл бұрын

+Ali Al-Mudafer you're welcome, make sure you are subscribed

@jeffreylu1196 8 жыл бұрын

Thank you for a superb description of how to overhaul this carburetor. I was able to do it very easily after viewing your KZfaq just once. Saved me some money and time.

@martinfinster9899 11 жыл бұрын

Nicely done. Short and to the point with all the important details, and, some real-world reasons why you did it that way and what happens if you don't.

@sx2000 4 жыл бұрын

Thank you. The primer bulb was not filling up so I opened up the carbie and I cleaned the small screen on 3:42. Works great.

@brucehampton1545 8 жыл бұрын

I can't say enough about this video. Easy to follow with no distractions music or kids etc. I bought a Stihl weedeater 1 1/2 years ago and already it won't start. 2 blisters later I am pissed off that a weedeater I thought I would never have any problems with for at lest 5 years or so has already failed me ugh. I'm not sure where to start and I doubt it needs a kit already but who knows for sure. It acts like it is not getting any gas and the primer bulb does feel different when pushing so I will start with the basics inspections to see if anything obvious is wrong then maybe change the plug out,filter and things like that. Anyway thanks for your video and I will be following you from now on.

@donyboy73 8 жыл бұрын

you're welcome, watch my video on how to clean the spark arrester on this trimmer

@brucehampton1545 8 жыл бұрын

Thanks for your response Donyboy73. After all my rambling about the piece of crap stihl trimmer I had watched a video on timmer line replacement and didn't realize that you could feed it in from the outside. I tried it out and it worked. I don't know how many choice words I used trying to figure out how to get the line rewound without it all coming apart. My point is on doing so I had pulled the plug wire to check for spark and barely pulled the cord and it started. What the heck I thought so shut it off put the plug wire on good and the protector cover and it ran like a new one. I just figure I had rocked it back and forth enough to unlodge something in the fuel lines so were good now. I will watch your video anyway for more info so thank you very much once again.

@sku32956 8 жыл бұрын

I also have a Stihl gas trimmer was hard to start out of the box.After watching the videos I am wondering if it the carb. needs adjusting

@jodystockley 11 жыл бұрын

Very well done. I appreciate the time you spent on each step; makes it much easier to understand the process as a whole. Thanks for posting.

@colescountyprospector4416 5 жыл бұрын

I don't even have a carb to rebuild right now and I enjoyed this. Very well done. Born to teach

@WetCigar 10 жыл бұрын

Very clear and concise instruction on how to overhaul the small carburetor found on many other brands as well. Congratulation on a excellent video.

@ncrdisabled 12 жыл бұрын

Thanks for a great video . I am still recovering still in a stupid neck brace I get to go the the Nuro surgeon 1 hour away to find out if I need a operation on my neck . He did my low back and kept me out of a wheelchair for 5 years . Then I got arthritis real bad in my low back put me back in the chair . I can walk very short time . He told me it would happen when he operated on me

@myema5694 6 жыл бұрын

You do an excellent job explaining the steps and the positioning of the parts. The camera angle and tight shots are steady & focused letting us see what you're doing without any problem.. Thanks so much for these helpful videos

@donyboy73 6 жыл бұрын

thanks

@robcole332 Жыл бұрын

Love going back to see the old ones. Thanks

@TrippWilsonJax 6 жыл бұрын

Production/Editing quality of your video is excellent and you saved me a ton of $$ on my KM55R carb! Thanks so much!

@billdavis606 Жыл бұрын

Great video. I ordered a new carburetor that included fuel lines, filters and spark plug for $12 or $15 bucks.

@floydrturbo1 2 жыл бұрын

One of the best instructional videos on KZfaq, to the point, great camera work, no stupid competing background music. Was wondering if using a spray carb cleaner is of any value. They are pretty weak compared to the carb cleaners 20 years ago so it is necessary to "rod" the passages. I did this on my motorcycle and will now try it on my Stihl trimmer and MS261 chainsaw. Keep up the excellent work.

@TheMauferre 7 жыл бұрын

donyboy73 you made my day!!! i was looking this tutorial from a long Time!!! Superb video, excellent quality and step by step instructions...Thanks a lot!!!

@docriordan7787 10 жыл бұрын

This is helpful, just purchased a FS46 gonna do a clean/rebuild before I even try to get it running. I noticed the fuel lines are much different than most I have worked on they appear in great condition. Thanks for the how to video!

@donyboy73 10 жыл бұрын

sometimes easier just to replace the whole carb

@regjohanson78 7 жыл бұрын

It worked like a charm- thank you so much. You're a hero to dummies like me.

@alvinovalenzuela729 4 жыл бұрын

thank you thank you for your time for sharing your knowledge with us like other two KZfaqrs God bless you all

@kerrya184 6 жыл бұрын

Good video! Rebuilt my carburetor this afternoon and it worked perfect. Thanks for your help.

@firefox00-7 6 жыл бұрын

Hey buddy my grief started when I tried to get the filter out with a coat hanger thinking it was like the older one. I then went to research and found you. You information was very precise and concise. I have now purchased a kit from ebay and it the changing of the fuel line and filter dont work I will change the carby seals to give it a proper run. Thanks heaps

@donyboy73 6 жыл бұрын

you can also get complete Chinese carbs on ebay quite cheap

@mrbluenun 12 жыл бұрын

Hi there donyboy73, Another good and easy and clear video to use as a standard to do everything needed on this Carburettor. ….. And this carburettor with that tiny round filter, which to a layman looks like part of the solid bit of the carburettor but you show it isn't. This is a pretty rare case of almost invisible piece that have to be replaced and or at least checked. Thanks you. Take care mrbluenun

@stevenheinemann780 2 жыл бұрын

Wow. Detailed and thorough. Gratitude, dude.

@brandongeiger2 12 жыл бұрын

Thank You so much! I noticed after I rebuilt my carburetor i could still blow through the fuel line...So I checked the float height like you said because it was incorrect out of the package and it seals nicely now!

@ryanvercoe1140 Жыл бұрын

A true professional, thanks Dony, respect. NZ.

@flipshide 11 жыл бұрын

Thank you! Your instructions were clear and your video saved me a headache.

@brenzmona-taofinuu2043 5 жыл бұрын

My husband and I have a bet that I can't replace the carburetor on my own without his help but after this awesome video he will owe me $200 haha thank you so much!!

@donyboy73 5 жыл бұрын

lol!

@brenzmona-taofinuu2043 5 жыл бұрын

@@donyboy73 You and your video just scored me 200 !!! LOOL 😎😂

@kodibassInsideoutboards 12 жыл бұрын

Dony' would it be possible in future vids like this one to give the symptoms that led to the repair, or even better a demonstration of the machines problems that led to the diagnosis & successful repair. your the best on YT

@fantasmagarciajaimes7560 5 жыл бұрын

muy buenas noches, no se hablar ingles, pero eres muy especifico, con mostrar imágenes mas que suficiente para entender, muchas gracias y un suscriptor mas!!!!!!

@elgardelito666 8 жыл бұрын

desde Argentina muchas gracias donyboy73, tengo la misma Stihl FS38 y gracias a ti aprendia hacer la carburacion!!!

@donyboy73 8 жыл бұрын

+Daniel Ledezma you're welcome

@westieBrucedavidson 5 жыл бұрын

Bloody legend Thank you so much mate..just had mine returned from a mate with carbie in bits at ,east i know the new kits and order of assembly now Truly life saver Many thanks

@PuRpL3DrAnKinMYsippy 8 жыл бұрын

You can get a Zama maintenance kit (new carb, fuel filter, spark plug, and air filter) for $14 shipped on Amazon...video was still informative though.

@superatech 12 жыл бұрын

The best video ever! I could actually see everything you wanted us to see. The focus was up close. Just awesome, Donyboy.

@vicf9869 7 жыл бұрын

Great Video. I think I should be able to take the steps here and apply them to my FS 85. Thanks...

@ChiDraconis 6 жыл бұрын

recommend not to use wire on jet orifice • his method is field-expedient and commonly use but only broach for the purpose is correct; we find bristle from brush or something that will not resize even slightly and do what we can

@bjornefellhanded9708 4 жыл бұрын

Mate - that's a quality vid. That step by step makes it so easy to follow. Keep up the great work.

@adambrady4923 7 жыл бұрын

thanks! video was really well done, got mine going again. It would start but wouldn't rev up without dying/bogging down and works as good as new after the rebuild

@greggarcia3733 11 жыл бұрын

Thanks for the video. It give me the information I needed to go in and clean the carburetor on my trimmer. Has never run so well!

@patrickmcmurray9446 8 жыл бұрын

Hey Donyboy; another well done vid, thanks. You speak clearly and steadily; your camera is steady and on task. A Pro you are!

@donyboy73 8 жыл бұрын

+Patrick McMurray thanks

@hahawk77 3 жыл бұрын

Amazing video with great close ups of the parts and very helpful tips about the cleaning and rebuild. I'm very impressed. Thanks so much for this!

@paulblackburn931 2 жыл бұрын

Donnie Boy is one of the best!

@subarutruck1 Жыл бұрын

Absolutely the best video ever! Thank You!!

@josedejesus6185 2 жыл бұрын

As always Donny, great video! I like the closeups and your warnings! Excellent!

@CraigArndt 12 жыл бұрын

Dony your last two videos are exactly what I needed to know on my chainsaw and FS55, thanks man!

@pwleppa 12 жыл бұрын

You are *very* good on making these videos. Thank you.

@brianmcconnell7988 2 жыл бұрын

awesome video thank you for showing us the right way to fix things

@gj4679 6 жыл бұрын

Thanks for the instruction! Much help on my rebuild, very much appreciated!!!

@fabricezamolo7740 9 жыл бұрын

A big THANK YOU for all your videos Donboy !!!

@4ng3lp3rv3rs0 12 жыл бұрын

i throw a stihl carb in the trash can because someone told me was bad so i had to buy a new one for a 135 dlls i think all it need was rebiuld i feel such a dumb lol good video ,hope u make videos on how to rebiuld small engines

@darkdelta 8 жыл бұрын

Great instructions, and camera work, very professional, many thanks.

@DS-ss7vl 4 жыл бұрын

I learn a lot from you donyboy73. Thank you!

@holdengr 10 жыл бұрын

Excellent my man. My fs38 is currently running fine but eventually I will be doing this for sure.

@ozshorts4690 6 жыл бұрын

You couldn't have explained it any better. I followed your advice and it took me just a few minutes to replace the carb. I wouldn't have attempted it had I not found this video.

@leswott 8 жыл бұрын

Your video saved my bacon. Trimmer would only run on choke, and not very long. With your help I was able to disassemble and find the problem . . . gas had congealed inside and needle valve was totally clogged. Cleaned that up and it runs just fine! Any suggestions re optimum type of gas? I'm using a lower octane now.

@joestruthers1301 10 жыл бұрын

Great presentation - clear, concise and comprehensive. Just what I needed in preparation for a rebuilt. Congratulations Donyboy73 Joe Nova Scotia

@donyboy73 10 жыл бұрын

thanks joe

@edalvara5426 4 жыл бұрын

Exccellent step by step instructions! Thank you.

@AJRestoration 2 жыл бұрын

Now I can service all 4 my Stihl FS38 carbs!

@gt754 5 жыл бұрын

Very detailed video and thank you sir from Waco TX. 🇺🇸🇺🇸🇺🇸

@bigdana 3 жыл бұрын

excellent video I love your videos as they are very clear, easy to understand, and you dont rush through steps... nice and easy for a non-mechanical guy like me. Thanks :)

@donyboy73 3 жыл бұрын

Glad you like them!

@thurgogopro5338 6 жыл бұрын

Generally its best not to push the small gauze filter fully to the bottom of the hole as you are reducing the useable filter area to the size of the feed hole underneath it which Is can cause the filter to block much more quickly. Just push it down flush with the surface and a then a tiny bit lower.

@robertwaid2965 8 жыл бұрын

a bread tie wire works good too!

@johnkinnane547 10 жыл бұрын

Hi Dony thank you for the vid, most helpful. Have seen some on You Tube do this and do a half hearted job and wonder why the thing won't start. Regards John

@donyboy73 10 жыл бұрын

thanks for watching John

@forgottenheritagehomestead8448 8 жыл бұрын

Well done! Very clear and easy to follow.

@AusMiner Жыл бұрын

Great video - thanks mate. Have just ordered a couple of kits and will have a go at doing my own when they arrive. Unfortunately our local Still repair shop where I live in Kalgoorlie WA is not worth the effort, otherwise I'd get it done there.

@donyboy73 Жыл бұрын

sometimes these machines need the entire arb replaced