Homelite weed eater gas trimmer will not run - how to rebuild weedeater carburetor - clean Zama carb 

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.

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

You put the metering diaphragm on and then the gasket on top. This is incorrect. The gasket goes on and the the metering diaphragm. On the side with the diaphragm pump, you need to put that on first and then the gasket. It is opposite.

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

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

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 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!

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

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

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.

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.

8:19 rip spring

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!

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

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

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.

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

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.

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.

Check compression first before you get into the mess and why wouldn't you just buy another carburetor off eBay for 12 bucks that's a lot of work even for double the money

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

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 .

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.

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

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

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.

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

Excellent video. Clear instructions. Well done sir.

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 believe you have the diaphragm and gasket reversed. The gasket goes on the carb side not the cover side

Everyone, having owned this exact model Homelite trimmer, don't bother rebuilding this piece of junk. Easily the worst running lawn equipment item I have used in 40 years. I bought an Echo weed trimmer 7 years ago and have not regretted that decision once. I am just now at the point of rebuilding the Echo carb, the Echo is worth repairing.

Homelite is shit. If you don't already know, don't purchase their weed wacker!

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.

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.

To avoid gas spraying you in the face, or all over, either drain, or open the gas cap to relieve the pressure, you will thank me.

yeh!fitted new carb,pug and bulb andfuel lines and still will not start so be carefull as maybe cheaper to get new machine\\\homelite sux

Thank you for this vid, helps me a lot

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.

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

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

HOMELITE TRIMMERDOUBE LINE REPAIR and replacement

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

To much work to rebuild it it's cheaper just to put a new carburetor on it know

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.

THANK YOU! Exactly what I needed to see.

I cant believe nobody mentioning the spark plug.I go there first before tearing anything apart

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

Hay thanks you help me i just saved 85 buks

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

Carb number is more important.

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.

Awesome video! very infomative

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?

The only thing wrong was he put the diaphragm in wrong. the gasket goes first against the carb and the diaphragm goes on top of the gasket then the plate is screwed down.

....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 !

I hate the Zama carburetor. They are cheap and prone to go bad. It's best just to order a replacement carb. Zama is made in China. Walburo is better quality and so are the rebuild kits. Stay away from after market rebuild kits on these. They will not last.

U forget to mention or show the kit or Zama part number for kit

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?

Отличная работа . Всё понятно и доступно.

I can use w40 for clean 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

HOMELITE DOUBLE LINE TRIMMER REPAIR BROKEN LINE

shit you lucky mate my STIHL running very good you should get one,one pull start, broom.......broom***********************************

Great video. Thanks.

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

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

Good video Please help me I need piston ring

gas cap? are you joshing me? I maybe from georgia, but I guarantee you I didn't just fall off the turnip truck! army officer 1969-72

Great video. Thanks for posting! Big help!

I have a homelite, but with walbro carb

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

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

Thanks,this works👈👍

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...

Compressed air a big no-no. Can do damage

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?

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.

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

you have repairable carbs your part of the world but in new zealand we get asian rubbish that can not be refurbished or rebuild ,i have never seen a all aluminum carburetor.ours are made partly from plastic.we just bye a new machine.[next not a homelite]

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?

Sir, I know you are only testing the carburetor to see if it will start. However, should it start and it was to strike your foot some how. You might loose a toe. You should wear the proper attire when dealing with weed eaters, and lawn mowers, Safety is your first thing to fix.! Just trying to be helpful.

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.

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.

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.

the inpulse port was not checked , the metering lever was not checked, the needle was not pressure tested, the primer wasn't tested to see if the check valve was leaking down, and the welsh plug on the diaphragm side wasn't removed and inspected for dirt.

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.

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!

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.

Thank you very much for sharing this Sir

That diaphragm and gasket kit was wrong. It should have been a GND-18 for that carb

Homelite timmer's are crap . Dont Waste a lot tme or $$$ on them .go buy a better trimmer like say Echo or Stihl

You put the meter diaphragm wrong,

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

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

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!"

5:00 Water bubble.

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

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

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