How to Rebuild a Tecumseh Carburetor

[@babarayhey]

It looks like 9 years later your video is still paying off too us DIY engine repair people. It will be very useful to me. Thanks for posting this.

[@helicopterjohns]

Thanks for the video. I may have missed it but you left out two of the most IMPORTANT items. Cleaning the passages in the bowl nut, there is a cross hole that should be clear and the most important item that causes the most trouble in these carbs is the very small vertical hole in the center of the bowl nut. If this passage is clogged up no fuel will flow from the fuel bowl into the red metering tube that feeds the fuel into the intake of the engine.. If you squirt brake clean or other suitable solvent into the recessed center on the threaded end of the bowl nut it should spray out both sides of the horizontal cross hole just under the head of the bowl nut. You have to be very careful to use the right size cleaning wire, because if you make the hole too large the engine will get too much fuel and flood and you will have to purchase a new bowl nut. There is also one other small hole about midway down the vertical housing where the bowl nut threads into. This one is also a very small hole. Failure to made sure both of these holes are properly cleaned can result in improper carb. operation. i.e. the engine won't run. Briggs and Stratton engines also have a similar bowl nut that has a tendency to clog up and is the cause of about 95% of fuel related issues on those engines. Hope this helps. John

[@blackout260112]

Does the direction of the bowl effect the movement of the float... I took it off for cleaning now my leaf vac runs then cuts off

[@evans1946]

Best video I found for this rebuild. I tore down and cleaned my carb, ordered the parts, and then two weeks later when I went to reassemble it I'd forgotten the orientation of the needle valve seat. Your video set me straight. Subscribed.

[@IamTheeEgg]

I changed all of the specified parts Venturi2012 did with the exact carb and i couldn't believe it. the darn thing started. i am happy to report that your video is very helpful and a great teaching tool. i looked at several other videos on Tecumseh carb rebuilding and none compared to yours. They either were not talking straight or the video was not in focus where you could see the parts he was trying to describe. U Rock man and i thank you for helping me out with my resolved issue. God bless U

[@700381042]

SO thankful you made this video. Wishing I had found this LAST weekend, but my rototiller is ready to rock again thanks to you. Well done too. No useless chatter, just gettin’ it done.

[@dalesnale]

Thanks for the extensive detail. With all parts needed for mine, o-ring seals, needle and primer bulb, I decided on a $16 new carb. This was a big help. Can't wait to mow the tall grass.

[@petem6354]

Especially liked the excellent close-up shots . . . they're blurry in so many videos. Nice clear commentary too.

[@marshallnogueira1462]

I followed this video step by step and the job came out perfect! Now my generator purrs like a kitten! Thanks!

[@knucklebuster61]

I agree that it is the best video for this rebuild I've seen to date. I would have stressed the cleaning of the holes on the bowl nut; especially the tiny one at the bottom of the threads. Also, if doing this on a lawnmower, take off the entire manifold and carb together first then separate them. If you're not familiar with the linkage /spring setup on the mowers, take a digital photo first. Excellent Job, Venturi2012!

[@TheasPlate]

Great tutorial. I've rebuilt many carbs in my lifetime, but I'm tired of figuring out the nuances of each system. I just want my lawn mowed ;) Perfect video for people who know the basics. Well spoken enunciated words (thank goodness) I'm impressed.

[@heaveninc.5656]

I think you did a great job on this video, I am very impressed, and remember one thing about your style "if it ain't broke, don't fix it". I find no fault in your presentation.

[@outtatime4512]

This may be the best presentation I've seen on boobtube in the many years I have watched. Articulate, concise, and you didn't have to show me your pets and tell me your life story. GREAT JOB!

[@tedh35]

What a fantastic detailed video. I just rebuilt my Tecumseh carburetor on a 10 hp. generator. I felt really confident after watching this video. It worked out perfectly and runs like a top now. Thanks very much.

[@charleskuss8538]

Great video! I recently repaired the carb on a 6 HP Tecumseh [vertical crankshaft] engine. On this engine, the carb is mounted tightly to the engine. Fuel inlet has a 90-degree bend, rather than straight, as your engine. To access the bolt heads which mount the carb, I had to remove the muffler for access to those bolts. My carb is one with a plug over the fuel mixture screw area. If available, a small ultrasonic cleaner works better for cleaning the carburetor. It gets into all those tiny passageways and cleans them out perfectly. It will also make the carb's exterior look like new.

[@charleskuss8538]

Error in my comment. It's not a fuel mixture screw, but a jet, shown at 2:44

[@garyjhammen]

Good overall explanation. There is also a small hole in the bowl nut that commonly gets plugged. Sometimes it’s in the threading. A small bread tags wire can be used for cleaning this out. Just strip the plastic off the wire. It’s a perfect size for the hole.

[@ClassicTVMan1981X]

There is a great deal of variety in the design of carburetors like these. One case in point was those used on the Sears Craftsman "Eager-1" engines in the 1970s. They started out being primerless (automatic), but a push-button primer was finally added in 1977 (1978 models).

[@douglashank9539]

Thank you for making this video. 10 years old and it still helped me. 👍

[@hckicker94]

Hey...great overview!! I just rebuilt my carb on my Tecumseh tiller, and I've never done that before. It was leaking fuel pretty badly...and now works great. Thanks!

[@TheNytestalker5]

Great video. Thanks for showing the part numbers on the bags. Just a side note. The rubber O-rings for the emulsion tube are size 1/4 inch outside diameter and 1/8 inch inside diameter. and an "AS" number of AS568-006. In case you want to source it somewhere else.

[@thuswaldner1]

so would you do a "AS568-006 Nitrile 70" or a "AS568-006 Nitrile 70"? Thanks!

[@pablocruisefromsocal]

Thank you so much for this video. It helped me rebuild a carb and now the once non-working lawn mower works fine. Thanx again from California (central coast).

[@walleyewilly8085]

Nice video, Here's another tip, Oil the o-rings and drive the emulsion tube back in by screwing the bowl nut in.

[@Wclifford7]

Great Video! In reinstalling the gas bowl, the center line in the bottom of the gas bowl should be aligned with the air filter inlet to outlet of carb, so the the higher part of bottom in gas bowl is under the float needle valve.

[@thuswaldner1]

Very meticulously done. Very good! I could not get the O rings out with the paperclip hook but used a wood screw with a gentle pitch hand turning it slowly into the centre of the O rings until the thread bit. But the oil idea helped. Thanks!

[@nighthawkj30A4]

I rebuilt my Tecumseh 5hp Powersport Engine carburetor Last year. Runs and start excellent. It has very low hrs on it pretty much brand new on my 1998 Manco Terminator gokart. Love that little machine

[@jacquelerock6938]

I just found your video and watched it through. Very concise and well thought out. I own 4 pieces of outdoor equipment all with Tecumseh engines. Usually I have them tuned up "professionally" however that professionalism seems to be wanting. This video gives me the confidence to fix these carbs myself and save myself a ton of money. Thanks again.

[@panadero911]

Excellent video. There's not too many videos that are this thorough and well shot. As soon as a question popped in my head, you answered it, well done!

[@treowayne]

I used the information in this video to rebuild the carb on my Tecumseh-powered lawn mower. The mower was hard to start before rebuilding the carb; after the carb rebuild, the mower started on the second pull and ran great. All of the bolts on my mower were standard (fractions of an inch) sizes. I found it easier to remove the muffler and the intake pipe in order to remove the carb. There was little room to access the carb nuts and bolts with the muffler in place. I removed the muffler and air cleaner, then removed the intake pipe and carb as a unit. The carb was easy to remove from the intake pipe.

[@justinmarshall4057]

Great video! Well thought out and great instructions. I usually never comment, actually this is my first, but thought yours deserved a job well done.

[@natesmith122]

Great video for someone like me that is looking for a tutorial. I have never rebuilt a carb but I feel confident now that I can do it without too much of a problem.

[@anthonytrodriguez7166]

The best video on rebuilding Tecumseh carburetor rebuild steps by steps

[@jayc4283]

Thanks for the video, good reminder about what to expect inside if I choose to rebuild. I just pulled by bowl for the winter and put off deciding what to do until later. Cheers

[@viewome]

Thanks for the video. I followed your instructions and my lawnmower now runs great with one pull.

[@romanykemp9042]

Thank god for youtube. I have this exact pressure washer - and I need to rebuild the carb. Thank you for putting the part number of the kit!

[@CmdrEmbryo]

Thank you! You helped me so much. Just refurbed my ancient Suffolk Punch scarifier/lawn mower. You are a lifesaver! Cheers

[@Roller76]

Nice video bud. One thing to remember though. The emulsion tube you had was the plastic one. Never spray cleaners on plastic because it melts plastic. Again great video

[@XwpisONOMA]

Good tutorial video, I have a very similar engine only in my MTD 22" snow thrower. You helped me a lot, thanks! PS: 13mm is 0.511811" and 0.5" is 12.7mm, so in practice these two sockets are interchangeable ONLY if you do not need to use a lot of torque, which is the case with the carburetor bowl screw. Otherwise the looser fit may cause slippage, a stripped head and injured fingers.

[@ktshoema1]

Thanks for the help! Just rebuilt mine (had surging problems) and it purs perfectly now!

[@Venturi2012]

Thanks! This was my first ever instructional video so I wasn't sure how it would come out.

[@JensenJamie]

This was very helpful to me. I am rebuilding one for a Toro snowblower that had a leak. I had to replace the same rings that you replaced. However, mine has some kind of a spring on the float. I will have to check further for that.

[@1stuart1]

Hey, wanted to let you know that your video helped me get the carb back together. Thanks.

[@cr10001]

Thanks! Excellent video, and your explanations were just right - not too slow, not too fast.

[@MrRickperkins]

Thanks for the help, mine was a different size motor off a lawn mower, but all I needed to do was to rebuild the bowl and float.

[@grahamellis29]

That k's for the video! Mine was leaking fuel out of the tiny vent hole on the side of the carb, so I figured the float was stuck, turned my snowblower on its side and took oof the fuel bowl, wel wouldn't ya know it the needle fell out of the carb and went into the govener housing, so much fun😅

[@davegee1063]

Thank you, nice video, I was having trouble with the carb on my lawn mower and your video helped me get it running. Many thanks, -DaveG

[@num1booger]

hello venturi, a very nice quality up close video, i have a 1974 rotospader from sears, going to do carb rebuild for it. thanks for the up close video. blessings to you and yours, snj in beaumont cally

[@trosslv]

Nice job on the video. Good close up views. Can't believe it's your first how-to video. Keep up the great work. thanks.

[@IamTheeEgg]

excellent Teaching video. I bought a used Scotts Push mower last week and wish i hadn't when i got it home because no matter what i did it would not start, finally after changing the Plug & filter i realized it was not getting gas so i tried the squirt some starter fluid trick in the carb and it immediately started for only 3 seconds, OK after opening the carb bowl it was filled with a jello like substance. the gas had congealed.. it was full of gooey gas. i did what he did and now i am mowing.

[@dnjost]

Brought Lazarus back from the dead. Thank you so much! We might survive the Snownado in the Northeast USA.

[@pinomarino8917]

Nice job on the rebuild. The only suggestion I would make is to replace that brass float with a plastic one even if it still works. They tend to leak and cause problems.

[@lynnjones268]

The very best presentation I could ask for, Thank you

[@jayhawkr86]

thanks for the detail on the throttle linkage saved me some time reconnecting ..

[@MNDashcam]

Great video. Very informative. Keep it up!!

[@boblafountaine9560]

Two years old but just in case you see this, I really appreciate you showing this video bcz I’ve never done this b4. Just wondering why you didn’t show the most difficult part where you place the needle onto the float? It’s obviously a tricky thing to do but you should be able to include the most difficult part of a video since that may be the entire reason we clicked on it in the first place. Also, it didn’t look like the needle was placed on the float just before you attached the bowl. At least you could could have shown that with a closer look. Thanks for doing this video, just had a couple concerns.

[@gordbaker896]

Use a 11/64" drill bit to set float. Drill across carb casting, float on top. Be VERY careful installing than idle jet. There is a captive ball inside the tube and you MUST have the carb in operating orientation before tightening the jet in. Also look for a tiny vent hole in the top of the casting on the engine side.

[@petem6354]

Thanks . . . . . . . this video really got me out of a fix. Well photographed and very clearly explained

[@Elmo_Fuddleputt]

Thanks, kid. I needed to see this. I 'preciate it.

[@robertrussell2595]

You are good. Easy to follow your procedures. Great to know and to share.

[@rustcoal]

You can brush it GENTLY, not too much....Goes at it full power.

[@fireman9191]

Lol was thinking the exact same thing

[@raffimckringleberry2740]

Hilarious but very educational

[@Frankiebonez337]

Freaking hysterical I lost it when I saw that LOL

[@kellywarner4514]

Excellent info, man. Really well done, concise, detailed. Way to go. Finishing up now and I bet you just saved me a bunch of money.

[@2slofouru]

I lol'ed at brushing gently with the wire wheel! Good vid going into detail about the emulsion tube. Thanks for the tutorial!

[@tradersnotion]

Thank you for this video! Some good information here.

[@HomesteadFishing]

Thanks ! Doing a 3.5 hp tecumseh myself soon 🔥

[@Nodularguy1]

Very well done. Helped me a lot. Thank you.

[@moquadri08]

hi this is one of the best learning vedio on you tube thank you chief

[@houseofdiy1030]

Fantastic! Great video. Looks like a Tecumseh Series 8? You see these all over the place. Looks like a lot of work but once you've gone through this once it's a 15 minute job and great seasonal maintenance to keep your engine in peak performance.

[@Venturi2012]

That is for the idle mixture adjustment/air screw. It's a preset needle that just needs cleaning. I would find a drill bit to clean it out, by hand of course. I have a set that I believe goes that small. Or try a toothpick or metal pick tool.

[@jefffromjersey52]

VERY informative.. I learned a couple things.. I think Im ready to rebuild my Carb now.

[@steverollins7904]

Nice job. Good camera work. I subscribed

[@Venturi2012]

Thanks for the comment! I did a real good job cleaning it a few months earlier than this, even the tiny hole on the bowl nut.

[@ศิลป์คําเอม]

ต่้ิิองการมีจำกน่ายทหรืิอเปลาา

[@marki.6585]

Great video. If I purchase a new carb can I use the old Fuel Mixture Screw to avoid having to reset the mixture? Thanks.

[@anthonyinglis3459]

thanks for the vid, it helped me fix my mower

[@MStrongPhoto]

So glad this is a high quality video!

[@a3sully]

When did tecumseh start using the garbage metric sizes on their engines? I have never used a 9 mm wrench or socket on any fastener. The bowl nut is half inch and other 2 are 3/8 inch and 11/16 inch.

[@Venturi2012]

The two needles are preset, so there are no adjustments possible. You should only need two of the small o-rings, unless you want more in case you're rebuilding another carb. And yes like it says in the description, The engine starts on the first pull every time.

[@Venturi2012]

If the correct amount of gas is in the carb's bowl, you can push the primer and see gas being pushed into the intake. Just remove the air filter or whatever you need to see inside. Either not enough gas is in the bowl, the primer bulb is cracked, the passages are plugged, or your bowl gaskets has a bad leak.

[@brucebratschi4300]

Great job youngster. 👍

[@greghudson1489]

I have a very similar carb (#632669), but it appears to have a brass emulsion tube that isn't removable. Goes to a Tecumseh TVS115-61622C (B) on my old log splitter.

[@rrich26]

excellent vid .....exactly what I needed TYANK YOU

[@buddywrightjr1415]

Replace fuel line on 10hp tecumsah rear engine craftsman ir murray rider mower

[@epicwarriors]

Mine is a diffrent one but thank you for showing me how to take it off I was trying to use a 2 size wrench so it was to long

[@TheEdan9023]

Thank you for the video. Very helpful!

[@Trauzzinator]

You saved my ass!!! Thank you so very much!!!

[@rrich26]

NOW GOT IT RUNNING . Runs good a full throttle but dies at half throttle and will pick up again if I pump the primer bulb. Any ideas? And again, this is the best DIY video I've seen on any subject!

[@jamesdoyle9220]

You forgot to remove the Welch plug on the side of the carb body. Not often, but sometimes the intermediate jets under that plug are blocked. The engine will surge. The old tecumseh manual says to reseal that plug with fingernail polish.

[@Bowwthntr]

Thank you for a great video.

[@stedydoch9911]

nice video!, just remember all the bolts/nuts are SAE not metric.

[@locdom65]

thanks good tutorial, now it s time to do it by myself

[@CesarChavez-zo7jy]

great video, nice job

[@stankdog1357]

3:17 you can brush it gently lol he takes it to the bench grinder

[@akbaxb165]

Thanks for the video Cleaned my Tecumseh carb per your video However, I do have one unrelated question: what kind of damage you can do to the lawnmower if you try to start your lawnmower without holding the control bar down? Thanks for any help you can provide.

[@tualex67]

Thanks a lot. I able to fix my go kart engine and runs perfectly.

[@jamesstansell7890]

tualex67 exactly why I'm here as well

[@marksmith6091]

So, when you push in the white "seat" for the float needle into the body, how far do you push it into the carb body? As far as it will go? I'm rebuilding on today on my generator in anticipatin of the hurricane....Thanks!

[@GGSF28]

Great video and instructions if you have the time. Or you can buy a newly rebuilt one on ebay/amazon for $15.

[@Venturi2012]

Is it a fast leak, or a leak you usually find out after its been sitting overnight? Make sure the float doesn't have gas in it(If it's a brass float), and make sure it sits level. Also make sure the seat seated properly. I had to put a little wd-40 on a seat once, and push it hard to get it to stop leaking. If none of that works, donyboy73 made a video of these carbs having a tiny hole on the side that when clogged, causes a very slow leak.

[@johngburtonbudzinski7608]

Dealing with same problem now on high wheel trimmer . . . any link to buy the carb rebuild kit at best price in Canada? Will likely replace primer bulb, its due to give the usual problems.

[@Venturi2012]

You can buy them online (ebay, amazon, etc.) by typing the part #. Or you can find your local small engine repair shop and buy the kit from them.

[@outtatime4512]

I just bought a complete carbuetor for $28.00 as I could not find a used replacement.

[@IamTheeEgg]

I am curious about one thing. you took out a small screw that is about an inch long and has 2 holes near the top (tiny) and also a hole on the tip. the screw is brass and sits a little low to the left of the primer bulb. what exactly is that screw for. Also the hole is still clogged up so bad i cant get it cleared. the 2 small holes are cleared on the sides but the tip of the screw that has the hole well i just cannot get that darn thing cleared . any suggestions or how much for a new one.

[@556suppressor]

Going to clean and use part no. 631021B on my Ariens snowblower carb. Hopefully this will allow the engine to get fuel and start. I didn't buy the 2-pak of washers 632547.

[@Venturi2012]

That's fine, it seems most carbs don't have the plastic tube, but a permanent brass tube.

[@snickerstorino]

i found that if i am replacing the o rings or seat i use a small wood screw or even a machine screw to turn into the seat or stuck upper o ring and pull it out. that is easier for me than trying to pull them out with wire, just a trick i learned.

[@billwest1945]

Since you're replacing the part that's an alternate technique. I also recommend a fine thread needle to clear small holes in tub screw and other metal parts to obtain better control.

[@thuswaldner1]

Same here. Worked great. But the oil idea helped for sure!

[@ducks_love_bread]

The bolt that holds on the silver float bowl is that a special kind or can i replace it with whatever fits!

[@standolfo]

Hello, my tecumseh tvm140 with 632253 carb engine won't start anymore and I find the spark flooded by gas after few starting tries. But: there is a spark, I have cleaned 'n checked the carburetor, cleaned all small holes, floater ok, needle ok, jets factory resetted (1,5 turn out from zero for main jet, 1 turn for air mix), no fuel leak and everything seems ok plus new fresh oil in the engine cup. I have no clue what else can I check? Can u help? A hint is that it stopped while working, it was running in idle but not supported the effort and turned off and never started again.