I knew this is almost 9 years old video but still a great reference video repair tutorial. Things that I would like to point out on this tutorial are, first you must not blow a compress air directly into the primer base check valves as it will damage the check valve. Inside that check valve has a round tiny rubber disc which could dislodge when blew with compressed air. Second, pay attention on the metering side as this is very critical on the engine performance and tuning. The metering diaphragm and gasket was installed in the wrong orientation. You must place the gasket first before the diaphragm as the clearance of the diaphragm to the metering lever is very critical. When the diaphragm is way too close to the metering lever, it could open the needle valve too much and become too rich in fuel and it's hard to tune and also it's hard to revs as what you observed at the end of the video. Third, use the correct rebuild kit. For this carburetor, the correct rebuild kit is ZAMA RB-28 or ZAMA GND-49. The GND-12 metering gasket is 0.2mm thicker which makes the diaphragm 0.2mm higher when installed properly. You don't need a special gauge to adjust the height of the metering lever for this type of carburetor. Just use a straight ruler and place on the surface of the metering face and adjust the metering lever just to touch with the ruler. I just came across with this video and just would like to share my thought. Good effort and well done! It's a good reference. VARIETECH

@foziehdehesht8319

Жыл бұрын

B. Ïui

While I didn't have the rebuild parts, I followed along with the video and gave it a good cleaning. Runs like a champ now! Thanks

Thanks a a heap mate, knew very little about what to do but took my old one apart and cleaned all the parts and she's running amazingly now, thanks for the great tutorial.

After watching your video, I worked on my own carburator....IT WORKED!!!!!....THANKS!!!

Thanks Man for this video. I found one of these by a dumpster which was not working but always wanted one. Reviewed the Video bought a carb kit of ebay and BAM! this bad boy is running. Thanks Man!

Good video, Good camera work. Yeah the metering diaphram and gasket were installed in the wrong order but I applaud the effort. I dont make "how to videos" just because everyone's an expert or just rude. I mostly share hard to find problems or whatever I FEEL LIKE! Stihl,Husqvarva,Echo trolls should just move along. This guy is offering up a solution to a problem that exhists. Thank You DIY!

Thank you for your help and time. I just cleaned it with carburetor cleaner and assembled back.

Thanks for the video. Other videos on KZread where saying to put the gasket on first and then the metering diaphragm and I couldn't understand why it would not start. Saw your video and switched them diaphragm first then gasket and it started right up. Thanks 🍺

@rickeykeeton71

4 жыл бұрын

I think you are talking about the other diaphragm. The metering diaphragm is the one that works the needle. That diaphragm goes on the carb after the gasket. The other, the fuel pump diaphragm goes the opposite. Can be hard to keep straight because we tend to put the metering diaphragm on the carb then the cover. The fuel pump on the cover then put both on the carb. He did anyway if I am not mistaken.

Nice job. One thing I've found that doesn't get discussed which I believe can affect performance is how poorly machined many of the Zama carbs are on critical surfaces from the factory. Some have fairly deep grooves and dents in the machined surfaces where I think it really counts. As a result of this I have a small thick sheet of glass that's perfectly flat and some 320 wet and dry paper. I wet everything up well and hand lap at least two surfaces if they're rough. Also due to the discoloration of the aluminum, you can see 'low spots". The critical surfaces would be the surface that goes up against the engine. If there are deep grooves or dents there, it's a place for air to leak causing the engine to run lean and have a laggy response to opening the throttle. . the other surface is the surface the flapper valves go up against. I take a few minutes and hand lap 3 surfaces. The diaphragm side (not so critical), the flapper valve side (critical), and the engine side of the carb (critical).. I use water or window cleaner spray and carefully slide the body back and forth. Doesn't take a lot of time.

Great video! Mine is a homelite also and it needs a carb rebuild. This video will be a big help.

Good video, very informative and a clear explanation on how to do the job.Cheers

Thanks for making a good video. I have seen to many instructional videos made on someone's pos camera phone. This one was stable and contained good info. Also thank you other commenters fit the god additional information. The plug in the carb he mentioned should be drilled out cleaned out and replaced. Should that piece coffee with the proper carb kit? And what of some of the other things mentioned? That should be checked in the carb? I want all the info i can before I tackle this little project.

Your a life saver! Took mine apart about 20 times trying to figure out after rebuilding..lol

@daved3549

5 жыл бұрын

You might want to tell us what you were doing wrong to help others.

glad Johnny noticed that the gasket goes before the diaphragm: Johnny is sharp,

@rickeykeeton71

4 жыл бұрын

That is one thing I was double checking. The fuel pump diaphragm goes on the opposite, diaphragm first on the carb. Actually, I was hoping the video would show the needle setting. I’m thinking different ones sit flush with different part of the carb.

I took mine Homelite trimmer carb apart and blew it out and the needle valves that are recessed that require a special tool to adjust inside a walled in casing I just took a dremel tool and cut a slit for a straight tip screwdriver to access the adjustment. Works fine now except for the low compression from it running hot before the adjustment.

Love it when a plan comes together

When you removed the primer bulb section of the carb there is a small screen you over looked it is plugged with crud. I've had to clean mine out many times when I couldn't get it to run right. I was surprised to see you overlook that many times.

@scottfirman

6 жыл бұрын

George W I replace the fine screen with a slightly larger screen on the really hard to start trouble child ones and they never have issues again. Remember, the tank has a filter already in it. That extra fine screen can actually be too fine, even the oil has a hard time getting through it. I found one that was plugged with oil because someone didnt mix oil with gas first before dumping in the tank. As soon as thst oil hit the screen, it plugged it up. Even a regular cleaning didnt remove the oil plug. A small brush was needed to wash the oil plug from the screen.I got that weed wacker free on the side of the road. They even put the manual with it. I was on a bicycle ride when I found it. We were on vacation. My wife wasnt happy that I dragged it back to the campground but hey, it was free. I sold it for $45.

33 overpriced small engine repair shops gave you thumbs down. Nice work. You did more than I would have done by buying new parts. I always take the carbs apart and try a 2 day soak in Sea Foam or MMO with running a fine wire through the passages followed by compressed air and a re-use of the gaskets and diaphragms first. I almost always get lucky that way unless the diaphragms are really old and brittle. Soaking the diaphragms in 2 stroke oil softens them, too. I'm such a cheap Mo-Fo. LOL.

@scottfirman

6 жыл бұрын

scdevon Invest in as n ultrasonic cleaner, they really get into those passages and does a great job cleaning the oils out of the metal.

@neilfroggycrompton2466

5 жыл бұрын

195 now ☺ now ppl know how easy it is to fix a carb,shops are now losing business 😅😅

Excellent Video ....I've had this weed eater for years...it ran fine but I think I got some bad gas and subsequently it started to stall ...had no idea how it came apart but it looks like and easy fix ...noticed you did no adjusting of mixtures ...any reason why ? Anyhow...well done !

I have the same model and on mine I had to pry a good bit to get that plastic part for the air filter off. With mine I can get it to start but I have to hold the throttle and can't take it off choke. When I got it from my Aunt the filter was all dry and crumbly. I can only guess that a piece of the filter is stuck in the carburetor somewhere.

Great vid, very clear and easy to understand. Thanks

This inspires me that I might have the same success. Thanks!

Sometimes replacing the carb is the best thing to do. Empty the tank and check if the fuel filter came off. See if the fuel line is rotted and broke off. Replace the diaphragm. It includes the pump. Look at the name, Zama etc. and the carburetor number to find which kit to use. Wildthing 18" chainsaws have identical carbs. but the top cover is different. It's a Walbro. Measure the I.D. and O.D. of the fuel fitting to find the right hose.

thank you for the video I have one i never could crank after watching this I feel like I know how to do it, I can refer back to this for help appreciated mine is a homelite

Great video. Thanks for posting! Big help!

Super job in the repair video!

Great tutorial saved me mucho dinero Very concise

Pretty good video. Do you know how to adjust the lo and hi mixture screws? If you want to make another video on how to do that with this carb it would be useful. Also, suggest you invest in a pair of tweezers - not only will that help you manipulate the small parts but it will help your viewers see what you're doing because your fingers won't be in the way. Aside from that, good job!

my 4 stoke cub cadet ss418 same problem hard to start , when i spray brake kleens to start it runs ok just the priming will not start

Genial., u r a master.! thank u so much from buenos aires, Argentina

Thank you for this vid, helps me a lot

I just got the same trimline used and it only runs on half choke was wondering how you adjust the idle and run since it has no screws

I almost sent my trimmer to the dump. Where homelite used a zama carb in my 23 year old trimmer, I was able to locate a new walbro carb for around 25 dollars. The walbro crossover seems to run better. I think the ethanol problem redesigned these.

Excellent video. Clear instructions. Well done sir.

@terryglass5113

4 жыл бұрын

uporoff must agree.

I have the same carb on my trimmer and it'll crank and reve but won't idle down, any ideas? Thanks!

good vid. if homelite is associated or owned by ryobi, it can't be too bad. can't remember any ryobi tool saying "bye bye!"

I have one of those for a quicker start I put a bigger gap on the spark plug like how they are hard to fired up... And I keep my hands on the trigger....mind need to adjust on the lower idle tune...will practice to fix that soon... Once u learn to tune them up u have them until the Piston broke or something apart from that once u cant get them start you'll think they trash and no good...

I rebuild my walbro carb with a kit. When I pump the bulb it makes a hissing sound and does not fill with fuel. But the fuel comes out of the front of the carb and soaks the sponge air filter. Do you think I have connected something wrong?

I need the exact carb - the one that doesn't have the adjustment screws just plastic things. I can't find one. Do you think one of the other ones would work?

Thanks man! I appreciate your video.

Go to E-bay and buy a new carb for around 10 bucks. Free shipping.

@charleshines6155

4 жыл бұрын

I might do that too, I got one that had crumbly filter and will not stay running. I can only imagine a crumb of the filter is in one of those passages. You know those thin nylon things they use at the store to attach tags to clothing? I am thinking that one of those with an end cut off would be a good poking and cleaning tool for a carburetor like these. If all else fails they are cheap online as you mentioned. The way I see it you don't have much to lose trying to repair one of them because they are cheap enough to buy new if all else fails. I never liked 2 stroke engines anyhow. I would always get that stubborn one that was not drained before storage. That is probably the single reason I have horrible luck with them.

I have the featherlite sst25c and I ordered a brand new carburetor and it will start on half chock and even run but it runs for about 10 sec and dies and no matter if you give it gas while,started it will die within 10 secs. I put brand new fuel lines and brand,new fuel filter in the tank as well and a new air filter still no luck. Tried removing,air filter still,same,issue. Any help would be greatly appreciated

Hi! I have a yard machine weed trimmer and the thing won't start. I've replaced the spark plug and primer bulb and put new gas in. I was going to change the fuel filter but I don't see one in the tank. Not sure if this trimmer even comes with one. Also, after replacing primer bulb, it still sticks and is not filling up with gas. Any suggestions what else to try?

So useful. Thanks for sharing.

Here's a question. Mine sat for six mos. with gas in the tank. It ran for 5 minutes then dead. Should we drain the tank and run the carb dry after use to prevent this?

Thanks for information. I took carb apart and cleaned it...the gaskets were good so didn't replace. Issue is when I prime the carb it's not sucking any fuel from the tank and I have to tip it sideways to get any fuel to start...once its on it will start but when I switch it to B...it will cut out after about 30 secs....any help. Thanks

@xc75ranger

2 жыл бұрын

I had a similar problem, the engine would run until the fuel pumped into the carb, (when I first started the engine) ran out. 1st: I would recommend that you check to make sure that your gaskets are on correctly. For the Metering side, gasket first, then diaphragm, then cover. On the Pump side; diaphragm first, then gasket, then cover. Next I would check your fuel lines, mine was pinched where there was a bend in the line. I added a slightly longer fuel line, that took care of the problem. Good luck.

For a machine that will not start or cuts out after a few minutes, first check that the fuel pipes have not perished and split allowing air to be sucked in. E10 Petrol/Gas that has bioethanol content will destroy some plastic fuel pipes. I have just diagnosed & repaired this problem with a Titan multi-strimmer.

Thank you very much for sharing this Sir

THANK YOU! Exactly what I needed to see.

We have the exact same model. Also we have bought the kit and are still having the same issue. We have taken it apart re do everything put it back together at 10 times still having the issue

@DIYTinker

10 жыл бұрын

then the issue is somewhere else. Have you replaced the start plug? Also, is the gas new?

Hi I have a question. Which position do you work? I have the same trimmer but i dont remember how to start it, it has been stopped for a long time, so if you can refresh my mind i thanked you.

I got a new carb, gaskets and fuel line,one extra bulb and a tool to adjust the carb for 12.98. Free shipping. Thanks.

@terryglass5113

4 жыл бұрын

James Potter who did you get that parts pack thru ?

Did you put the gaskets on in the wrong order at 9:26? The old one had the gasket attached to the thin piece and the thick part was facing the carb but when you installed the new one, you put the thin piece first then the thick gasket.

@williamclements273

5 жыл бұрын

I saw that too and we are both right: gasket goes on body first, then diaphragm. Will not work properly his way.

@danielabrullo10

3 жыл бұрын

@@williamclements273 Gasket under diaphram upper .........If my english is ryght. Cheers from Monza Italy

@williamclements273

3 жыл бұрын

@@danielabrullo10 Correct; on the other (fuel pump) side it is the opposite - diaphragm on carb body, then gasket.

I replaced my carb for only a couple bucks more than the rebuild kit would have cost me and yes its the same brand carb not one of the savior, Ruix, or cheap aftermarket non OEM ones.

I can use w40 for clean it?

I dropped my MCCulloch in for a service quote - they said over $100 in parts, plus labour - buy a new one, we have some in stock.. Rather than a rebuild kit, I am ordering a complete replacement carb from ebay. Under $20, and half an hour of my time - the only thing that worries me is if I have to adjust the "tune" on the new carb.

Great video. Thanks.

Followed the video and fixed my Weedeater FL21LE almost as good as new with an $8 carb kit. If I can do it, anyone can.

DIY Tinker or any one that have an immediate solution. How do you take out a stripped screw holding the needle, holder and spring from the side of the diaphragm? I have two carburetors with that particular difficulty. Please tell how will I be able to remove the screw. Thank you

good video friend .. great job

U d best muchas gracias. Replaced the fuel hoses. Now I'll rebuild the carburetor

Pull the adjustment screws before cleaning cab and blowing it out. Take an elect conetor with the plastic around the end and try slipping it over the adjuster instead of buying one of the special adjusting tools.

How many turns out should the hi and low screws be set at?

Awesome video! very infomative

Which of the two hoses is the intake and the return? I have the same model/same carb and it's not sucking in the gas. The bulbs is intact...new kit.

@neilfroggycrompton2466

5 жыл бұрын

Are the hose connections to the primer bulb back to front?

Отличная работа . Всё понятно и доступно.

Starting at 924 you can compare the old gasket and diaphragm and can see that he installed the diaphragm under the gasket at 943 and that is the opposite of what you should actually do. The gasket goes against the carburetor body and the diaphragm goes on top of gasket. It is very important to get this right or it will not run properly. Other than that, good video.

@yvonnesutcliffe9876

6 жыл бұрын

max98138 l

@scottvan1898

5 жыл бұрын

When the eater it started,don’t matter what you did,it will run,,but ! When it’ quick running,whatever you did,they’re just not going start up.you will keep pulling again, and again,again..

What about the mounting gasket? Haven't been able to find one myself, that matches the old one

I like your explanation mate, very clear, professional and understandable and most important no fucking music.

EXELENTE VIDEO . SALUDOS

hi, thanks for your helpful video. I have the exact same homelite, but have a different but related issue. my unit starts fine, but won't stay lit. in the full choke position, it dies when the primed fuel is spent. if the choke lever is moved to the half position, the motor dies when you pull the trigger. it won't idle in this position either. same is true in the run position. however, and here's the kicker: if you move the choke lever about half way between the full and half position, the motor runs. problem is that due to motor vibration it won't stay there. any ideas as to what this very vexing problem is? I have cleaned and taken the carb apart more times than I care to remember. I want to try adjusting the mixture screws, called homelite but they say the epa won't allow them to give any info that impacts emissions. there is a red and a white housing that prevents you from messing with the settings. which is for the idle and which is for the run mixture? I assume that turning them clockwise will lean them out. is that right? any help you or any of your viewers can provide would be greatly appreciated

@DIYTinker

9 жыл бұрын

Jerry Lee i had a similar situation on a different trimmer. It end up being not enough back pressure to push the gas into the carb. I end up replacing the gas cap (which regulates the back pressure) and it fixed the issue. i know that sounds silly, but thats what fixed it.

"helping some Ryobi carb issues " with my supportive comment. if you have done ALL and even repeated yourself... small possibility IF... you had running/ starting issues... and needing to full choke to run... that the small module used to actuate the throttle is leaking air profusely... fouling all starting and running. I had issues arise after 7-8 years of lite happy use... but i noticed that the machine started harder and harder and needed the choke set more fully on to run. I use premium.. no ethanol. the bulb breaks down and i replace it and can never start it after that. I assumed I had a small rubber piece go in the carb.. so i cleaned the carb. NO LUCK. I moved on and ordered a carb. I put the new hoses/ filter and carb on and made an error... I kept my throttle actuator (turns out it was leaking so much air, it would NOT run. I switched back and forth between the new and old carb assuming i dont understand... When i thought... why keep the old Throttle module.... I switched it out to the new ILL-Fitting cable connector... and poof... like magic.. It ran. a tiny carb adjustment and I am back in business.. I hope this helps somebody.. GREAT VID

No body mentioned check for the spark plug for spark : remove from housing connect with high tension wire pull hand crank to check for actual spark, adjust the gap accordingly. It should start with just one or two pull start : provide you clean the carb right, gaskets not torn or broken, gas mixture is right, filter not puck, fuel line not broken, return line in right length, last not no lease form filter is clean..... then you should have no problems with ONE pull start, no matter three of mine were over ten, three or one year old.

How do you adjust the high and low mixture screws on this

@aidananderson1721

9 жыл бұрын

Dean Hudson you can pull of the plastic limiter caps and there should be a slotted screw driver fitting underneath all though it is not legal, who is going to check something like that

Just putting a new carb kit in isnt going to be enough.IF you cant dial in the adjustment screws its a total waste of time (1/2 a turn in ether direction isn't going to work) . Go Buy a new carb. they only cost 20.00 or more if you order on line its way less hassle and the new one will all ready be dialed in for the unit .

The Zama carbs I’ve rebuilt on the diaphragm side the gasket goes on first then the diaphragm…I see here it’s done the other way around.

onde consigo a tanpa do arranque da homelite 3.800

You have to be really careful. Some of the tiny holes in a 2 cycle carburetor are check valves. They have a very tiny rubber disk in them. Carburetor cleaner and high pressure air will ruin them.

@coylehome

7 жыл бұрын

2 words: safety glasses. You can't predict where all those holes will spray, and an eyeful of carb cleaner WILL ruin your day.

@scottfirman

6 жыл бұрын

wcjcnc Yes, and you can destroy the carb blowing into them. The one way check valve in the priming bulb base is a good example. You can no longer get then eather. Then its whole carb replacement time. Wire will also destroy that valve. Its best to use an ultrasonic cleaner on them.

Replace old gas with Trufuel, problem solved for me the last 2x times. Quick-easy

I found this one on ebay. It is: Zama C1U-H46A not the H60E

How is this trimer? A lot of people hate them, I understand it is no stihl or Honda but I would like to make a trimmer mud motor and was looking at the homelike for $60.

@DIYTinker

8 жыл бұрын

+Everything Outdoors well, its still working after all these years. i got it used for $5. to me its been a good trimmer.

@steelydanfan100

7 жыл бұрын

Everything Outdoors, Homelite gas weed trimmers are a total waste of time, money, gas, oil, everything. Avoid this, but Echo or Stihl, the commercial guys use them for a reason.

I just bought the same weedeater and dont know what kind of fuel it takes it looks blue but i went to home depot. I was given a pink fuel 50:1? Help anyone

@buster2725

3 жыл бұрын

as long as the mixture is rite,color doesn't mater

Great Thanks to you... Cool...

Thanks,this works👈👍

8:19 rip spring

Good video

you didn't adjust the leaver why?

So Zama says don't use compressed air but you do. Why?

Where did you by the carb rebuilding kit

@DIYTinker

10 жыл бұрын

i bought it on eBay. check the "About" tab for more info.

hey you installed the Diaph. and the gasket wrong the gasket goes on th carb first then the diaph hope this helps thanks

@gggggeeeooorrrgee

9 жыл бұрын

exactly what i was thinking when i seen this video

@dntwnbro

9 жыл бұрын

Robert Davis Yep, I noticed that too. The gasket goes on first then the diaphragm.

@rjb91366

7 жыл бұрын

on the primer bulb side yes but if you put the gasket between the diaphragm and the cover on the needle valve side, it won't work, too much space between the needle valve an diaphragm, made that mistake myself, learned the hard way, been Workin on them for about 35+ years now!!

@bravoda1

6 жыл бұрын

Thank you .

Hey bro...so I'm here wondering wats the cc of the engine?

@johnlieske8908

5 жыл бұрын

26cc or close

My trimmer spits gas out the back...when i pull string and it wont start...any ideas?

@johnlieske8908

5 жыл бұрын

Diaphragm is hard and not holding the needle closed

You did a pretty good job BUT....You neglected the Hi & Lo needles and ports....Take off the limiters...take out the needles....thoroughly clean and reinstall and reset the needles

good one...

Excellent video quality!

Save yourself time and money. Pour COLEMAN FUEL into the carb and let it sit for 30 minutes. Put fresh gas mix in the tank. 90% of the time this will fix the problem.

@scottfirman

6 жыл бұрын

rallycsx If the diaphragm is shot, it doesnt matter. Cleaning the carb with an ultrasonic cleaner works best hands down on these little buggers.

Good video Please help me I need piston ring

What is going on if after a rebuild the primer bulb will not pull gas.

@michaelcanning2815

7 жыл бұрын

Rusty Nuckles I'm having the same issue! You ever find a fix?

@rustynuckles3662

7 жыл бұрын

Apparently the primer base that the bulb sits on is defective. Mine is a white plastic type that has a check valve that will not release to allow fuel back into the primer bulb. I tried to use a welders tip cleaner to release the stuck check ball but ended up knocking the ball off the spring ( I guess) because now the bulb will fill up and spit back out through the same fitting which is supposed to be the return fitting. Unfortunately I cannot find just the primer base as they have been discontinued ! So in short we're fucked into buying a new carburetor since there is not a superseded number to replace the disposable white primer bases !

@michaelcanning2815

7 жыл бұрын

Rusty Nuckles Thanks for the reply. I'll try cleaning the base while I wait for a new carb! haha

@ZombieDaveAZ

6 жыл бұрын

Rusty Nuckles 99% of the time the lever on the metering diaphragm is out of adjustment. It's set too low and won't allow fuel in.. 1% of the time its the primer. I'm sure that you have remedied the problem by now but if someone else reads this I hope it helps. My channel also addresses this issue.

@scottfirman

6 жыл бұрын

Rusty Nuckles Yup. I noticed too you cannot get just the white base. If the one way check valve goes bad, that carb is now garbage. I have three weed eaters with bad one way check valves. I am going to try my ultra sonic cleaner on them. If that doesnt work, looks like a new carb. Try a chinese knock off if possible, cheaper but they work.

....took the carb off the machine & totally disassembled it to clean it out & didn't even touch the High or Low adjustment screws. I Don't agree with That. But, your the 1 with the video, not me. I'm glad it runs !

did you ever see what was wrong with it , the gaskets looked ok ???????????