Walbro Carburetor welch plug removal for deep clean.You can do this 

+t top Thanks for commenting. I'm waiting to see if anyone copies my welch plug removal trick. Time will tell. Lol. Have a great day.

Dave Ackerman 1967 iii

Thank you Max!

Thanks for commenting Panzerkiller, and Thanks for the sub on my channel. 👍

Thanks for the sub. I got you back!

Thanks Paul. I have a couple hundred vids. Looking forward to your comments. Stay safe.

You can also adjust the pressure the punch exerts by unscrewing the cap. Hard steel- leave the cap screwed all the way down. Soft non-ferrous metals- back the cap off a bit to avoid making a crater. And the really good ones like Starrett have replaceable tips. Cheers.

Echopartsonline.Com has that rebuild kit for less than $7.00 and the Welch plugs are included. I just looked it up.

@@ZombieDaveAZ hello i looking but i can find the carburetor new or the rebuilt , is aking me for the part number, do you have tje number

@@kratos9174 email me zombiedaveaz@gmail.com I will send you the link

Let me know how it works for you and thanks for commenting.

Amazon has tons but you would have to specify which sizes you would like. Unfortunately tbere is not just a kit of assorted sizes. That would be nice.

Lol Toad, let me let you in on a little secret. Trimmers are famous for getting clogged at the exhaust port or spark arrestor. It's hard to run a weedwacker full speed all the time and that's where the majority of the carbon build up comes from. Check that first. You still may need a complete carb clean but a carb clean by itself won't stop the bogging on acceleration by itself. You will still need to clean the exhaust. Good luck buddy.

@@ZombieDaveAZ your right I usually run my trimmers @ 75%throttle. Thanks

I hope you got it fixed! I rather doubt that the circuits behind the welch plug were what was causing the bog down, but hey it never hurts to learn new stuff!

JOE Z yeah that nail polish really dates us! Younger "techs" prolly scratching their heads over the nail polish. Ill be over to your channel in a bit and support you too! Thanks very much.

You're welcome. Had to make sure I said it was for the Welch plug LOL. Stay well, Joe Z.

Creative Merits Thank You Mark. I hope it helps some guys and gals out there to get the job done and save some money. Sometimes that's the difference between throwing away a piece of equipment or getting another couple seasons out of it.

Thank you JM. I hope you follow me cuz most every video has a tip or trick to help you save $. Thanks for taking the time to comment.

Kevin Doble yes i have reused them. I have a video on a briggs carb where it just fell out and was in the bowl. I cleaned it up and used it again.

Comes in the kit with gaskets and diaphragm. I use Amazon for mine. Be sure to spec "YOUR" carburetor.

Opposite of what you're thinking brother. Most welch plugs are a result of the manufacturing process. IE: after the carb body is made they have to put in the holes for the fuel to flow. Hi speed jet and the adjustment screw is tapped. Then the low speed jet is drilled and tapped. Under the Welch plug in a 2 stroke or pulse carburetor is a idle air passage that is preset . That works in concert with the low speed adjustable jet. When the machine runs on its own with just the low speed jet adjusted it is now time to apply throttle. Now all 3 passages work together to deliver the proper fuel air mix. Again now the hi speed jet is adjustable and they all must work together to deliver power under load. If you have done all the adjustment you can with the low speed jet and it still won't run, try cleaning under the Welch plug. Some guys get away with using a ultrasonic cleaner to clean what under the plug. I hope this helps you .

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-k_HhnNjFdxQ.html. This video will show how the fuel lines go and work

Diaphragms always go against a flat surface in the carburetor. The metering diaphragm ( the one with the metal tab in the center) goes on after the gasket.👍

Different kits for different carb models. Once you know which one, Amazon will have the kits for 6-8 dollars. OR a new Carb for $12-$18. The model # is stamped on your carb. Example K-1 etc.

Okay, mine is a Walbro 228, WT433. Is it the same as the 88-171-8 ? (And R8123 ?)

Thought I ordered the wrong carb, but just realized I just have to swap out the throttle shaft so the linkage will work, thank God almighty; free at last. It wuz a real dern it Laura Dern there for a minute...

@@leeisenberg 😂😂

@@leeisenberg QAZAKY 2pc Carburetor Diaphragm Gasket Rebuild Repair Kit for Walbro K10-WAT WA WT Series Carb 2-cycle String Trimmers Blowers Chainsaw Poulan Weedeater Ryobi Homelite Lawnboy Toro Stihl Its $6.99 on amazon

Are you 100% positive your lines are not backwards. Is the primer on the carb or a remote primer?

Primer bulb is on the top of the carburator..it is a walbro 668. Fuel lines and filter are ok for sure. Thanks

Hey Paolo, did you get this carb problem sorted out yet. Sorry I didn't get back to you. I didn't get a notification from RU-vid.

@@ZombieDaveAZ the check valve is the problem I suppose...today I noticed that if I close the hole of the check valve fuel comes inside. It seems impossibile to remove without drilling it..how can i do?thanks

@@paolocamilloni8819 I don't know. I have not taken one out since I have nothing to replace it with. I agree with you that it looks like you would have to drill it out. If I determined that the check valve was the issue that's when I would prolly buy a new carb. Sorry I'm no help to you. 🥴

When the welsh plug is out, remove the low speed and hi speed jets. They are not always the same so do it one at a time or mark them. Also there may be a Small o ring that stayed inside the carb. I use a small piece of fuel line on the end of the carb spray straw and clean the passage that way. I hope that helps you.😎

The jet (brass insert) near the welch plug is the one and only main jet and it has a delicate check valve in it. It is made of mylar and if sprayed with a harsh chemical it will distort the mylar and it will no longer function. At one time they were replaceable, but I haven't seen them available for many years now. Also, Zama and Walbro do not recommend ultrasonic cleaning. They recommend soaking in fresh gas. Zama has a great website loaded with info. Maybe Walbro has the same.

thanks Stephen. I appreciate you. 👍😷🍺

Big Texas - It’s also not $400. Some people can’t afford, or justify, professional tools. I bought a Stihl string trimmer and it’s a beast! I have no regrets, except that it’s heavy as hell. I tore my back up, a few years ago, and went back to my Homelite trimmer. (Yes, it’s crap, but it works well enough for trimming around my fences and barn.) I have a large piece of land and it’s a lot easier to carry, even when I use my ATV. I do still have the Stihl trimmer, but only use it for clearing brush.

I've found that the newer cheap junk weed eaters are a lot better than those mtd ryobi things and I'll just remind everyone that the stihl fs 38 and 40 had the same engine just turned 180 degrees and hidden in stihl plastic

@@dominoespizza1756 I was always about "buy American" to keep US dollars in the US, and not boost the Chinese economy. But... most everything is now made in China, even Stihl. In 2017 (?) Stihl bought up Zama and opened a manufacturing plant in China where all their carbs are now made. I could go on...

nigelcarren Im here if you have questions or further assistance. 🔧👍

Hey Dave, thank you... what a gent you are. You know, I have nursed rally cars across the Sahara in my past and fixed some really complex machines, but this little carb has had me scratching my head. I was about to lose the plot when I noticed this little plug in my new gasket set... so I googled it and here you are! There is literally NOTHING else for me to try after this? So I will let you know how it goes buddy. Thank you. The word of the weekend is; 'Welch Plug'. Cheers Nigel

Good evening Dave, well I promised I would update so here we are and just maybe it will help somebody. In short; ITS ALIVE, and she revs higher than I can ever remember. As it turns out there are 3 faults. The Aluminium Welch plug I removed just as you did, but it was clear, so I carb-cleaned with wire and all the jazz whilst I was there. But in my little carb I have a little brass Welch plug, apparently this conceals a gauze filter which in turn feeds the high-rev jet (this is what didn't work with mine... I tuned throttle and she choked and stopped). I drilled a 1mm hole in this brass welch plug, then drove a screw in and pulled with pliers and there she was... FILTHY partially blocked gauze. This was in my carb-kit along with the little circlip. So I cleaned again and heard in a new brass Welch plug (so thats both Welch plugs removed and cleaned). Now she ran but it was all over the place.

Continued; So I fixed some new fuel-line direct to the carb and straight into the tank through the filler-cap (to eliminate the fuel line) and BOOM she ran superb. So I put it all back together by routing the new fuel-line properly through the tank-grommet and she ran... but kept stopping. I cracked open the fuel-filler and she went again... AHA BLOCKED BREATHER? So removed blocked foam from breather and jeez... Like a new tool. So thank you for your help, and the Welch Plug lesson. Keep up the great work. I can now start hacking through my jungle.

nigelcarren Its kinda funny how once you start ripping into these things its not so intimidating. Its just doing the first couple when you have a little self doubt looking over your shoulder.

You got this no problem brother!

You would "probably" have better success using an ultrasonic cleaner if you want to avoid the welch plugs. But in my mind thats a $60 solution to a $6 problem. Know what I mean?

@@ZombieDaveAZ yeah I hear ya...i hear putting the 2 stroke carbs in boiling tide works wonders for getting them cleaned out...ever hear of that?

Lol, I just read my first response and realized I didnt answer your question. Lol. My answer is I'm not sure. I've havent had much luck doing it that way. I tried putting a pice of fuel line on the end of the straw on a can of carb spray. No luck.

Not heard of that but Ill try almost anything once. 👍

Hey Graham. I use HIPA and they have the Welsh plugs included in the kits. You can access what they have thru Amazon and look thru the picture of what is included. Usually runs about $7 for all the gaskets, diaphragms Welsh plugs, springs, metering needles etc etc.

@@ZombieDaveAZ Thank you! I'm about to hit the "Buy" button!

Cannot reuse it if its deformed I dont know of any sealant to help you that the ethanol wont dissolve. If you ONLY use ethanol free fuel you can seal the plug with nail polish. That would work.

@@ZombieDaveAZ sealall from dollar General about 3 bucks.

Nunya Bidniz its in the carburator rebuild kit.

Hi Neil. Use a big screwdriver with the blade going in the same direction as the plug. Tap the back of the screwdriver with a hammer. Good luck buddy.

Screen is on the pump side Tony. This is for welch plug removal only. Thats on the metering side. Thanks for commenting. Poof!

A blast of compressed air from the opposite side will usually blast that screen filter right out. If your rebuilding it doesn't really matter but if your just cleaning and reusing just be careful and keep your hand over the backside to catch the screen or aim it down in a bucket because it will go flying.

When you order a carb rebuild kit, order the one that the welch plugs are inclusive. Amazon,ebay, and lots of shops online.👍

No. They close off manufacturing passages.

@@ZombieDaveAZ Thanks!

Isually comes pre-gapped. I like .30

Thanks man, take care.

@@leeisenberg Happy 4th. Stay Safe brother.

Thanks ZD, you too man. I got a couple new clips coming w/ credit given to You. Are you familiar w/ the old Craftsman 2.1 PS saws?

@@leeisenberg yes if its like the rebranded poulans.

Lester's Shop Talk Yes from Harbor Freight. How are you doing brother?

Doing good, trying to get over the hurricane

You are not wrong in your thinking Carl. There are guys that can walk by a 66 Chevelle and say "that's awesome" and keep walking. Another guys sees the same car and wants to see what's under the hood. I'm not alone in that. So for the guys that want to know how to unlatch the hood and see inside, I make videos. If you take something apart that's already broken or not working and you can't put it back together you really haven't lost anything. It didn't work when you started and it MAY or may not work when you put it back together. So I've always been a replace parts only after I gave it my best shot kind of guy. That's just me. Thanks for commenting 👍

thanks for responding@@ZombieDaveAZ

Jb weld I mean.

I don't know. Let me know how it works. Seriously.

@@danoakley6538 did the JB Weld work & is it still running?

Hey Paul. The plug is necessary to cover the Access ports that are drilled in the manufacturing process.. so when you see the low speed jet "hole in the carb body it is metered via the jet screw ". Without the Welch plug the fuel is unmetered. Would it run? Probably, BUT it would be a fuel and oil rich environment and the EPA would never ballow it. Good question and thanks

@@ZombieDaveAZ many thanks.

Good deal. You got lucky. Maybe time for a powerball ticket? Thanks for commenting. Stay safe 🍺😷👍

How can I get the right size . I have the right kit one plug fit but the other don't

Akeem Griffiths yeah,when I order carb kits, I order the 1 that fits multiple carbs. I have a stockpile of carb parts and pieces from those kits. They still only run $5-$7. Some carbs use 2 welch plugs too. FYI I use Amazon exclusively for my parts and carbs. Go to the 12 minute mark of this video to see double welch plug. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-CX34AxY2aYU.html

Akeem Griffiths not sure. Im an old man so I bitch and complain until I get what I want. Lol. I also dont remove welch plugs as religion. If its varnished and is sticky with old oil thats when I remove the plugs. Otherwise not neccesary. IMHO

ulitepilot aka Zombie Dave today after removing one of the plug I notice 3 small holes and one was blocked so pulling it this time counts lol

Akeem Griffiths awesome buddy!

Hello Brian. Thanks for stopping by. I'm afraid I dont know what you mean by "not running right". Does it bog under acceleration? Does it not idle? Does it run then stop? Please try to be as specific as you can and I can steer you in the right direction hopefully.

Your welcome. Once in a while it will surge up and down when holding the throttle trigger. Sometimes it will not idle even if I turn the idle speed screw to the right. If I turn the low speed mixture screw in any further the engine will bog down a little bit when I pull the throttle trigger. That is the best I can explain what is happening. Do you know what I should do now?

@@brianmott728 pressure test the machine. Sounds like unmetered air coming in from somewhere. The revving up and down makes me think it has an air leak somewhere. Possible seals. Pressure test will confirm or exclude the diagnosis

How do I pressure test the unit and what do I use?

@@brianmott728 follow this link and see how Donnyboy does it. He is good. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-23HvdPI_vgE.html

You're not the only one Rob. I think I mentioned that older mechanics would seal the plug with fingernail polish. Now that ethanol has been introduced to our fuels, that little bit of alcohol will dissolve the nail polish and thus another cool trick is now gone. Thanks for commenting and stay safe. 🍺😷👍

Nunya Bidniz Amazon has full kits for less than $6 for most walbro carbs. Shows up in like 2 days.

Hey JB thanks for the CLR tip. First I have heard of it. I will share with you that some of us guys on RU-vid like to know how things work, how they fail etc. I can't help but think that a lot of guys have looked at that Welch plug and thought to themselves "I wonder what's under there. They sent me a replacement in my carburetor kit so I guess I should remove it. So the work is not unnecessary first of all. As far as it being a piece of junk, that is subjective and possibly open to debate. The owner obviously didn't think so. MY video is CLEARLY demonstrating another way of removing the welch plug. As far as I know, I am the only guy at the time of publishing this video (2 years ago) that utilizes the self centering punch method. I didn't say it's the only way or the best way. I said all the videos that I watched required locking down the carb and using a drill. So if you didn't gain a different perspective on this unnecessary chore, that's my fail or maybe it's on you. Thanks for commenting and I hope you subscribe. I have over 300 videos of just stuff.👍🍺

Anything is better than nothing on the filter. Maybe some foam that does not disolve in gas. And here is what's wrong/why gas is coming out. Hope it helps. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wNTKOuKwXaI.html stay safe and have a good weekend. 👍🍺😷