EXPERT! REBUILD a Briggs and Stratton Lawnmower AUTOMATIC CHOKE CARBURETOR

Jeff's Little Engine Service gives a brief yet comprehensive tutorial on how to rebuild and repair a Briggs and Stratton float style carburetor. Craftsman lawn mower with fuel delivery problem. Quantum style engine with automatic choke. SPRING placement. Covers 3.0-7.5 horsepower Briggs and Stratton engines. How to fix common small engine problems. where does it go which diagram
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PLEASE KEEP IN MIND when you are watching my videos: I am showing you the least expensive, quickest "backyard" methods for repairing or servicing your lawnmower. Replacing all components such as gaskets and fuel lines is always recommended when rebuilding or repairing equipment. With these videos I hope you are able to fix and repair your lawnmower yourself with minimal parts, knowledge and tools. Thank you for watching!

[@sisyphusuphill5213]

Not only an excellent tutorial, but also a powerful confidence builder to attempt the repair for the neophyte! Thank you very much Jeff!

[@JeffsLittleEngineService]

Glad it helped!

[@geralddyke4378]

The assembly of the lawn mower could be done without any problems kzbin.infoUgkxTPN04aT-Qdjr_KS3ql7ng8wnU3wwsCqk also recommend I just puzzled something about the red strange “key”. However, it quickly turned out that this creates a kind of contact bridge between battery packs and lawn mowers. An additional backup as a father of a 1 year old nephew is great!! :-)

[@edvezzola7276]

Rebuilt my craftsman push mower today after watching your videos. Thank you for making it so easy to follow , and again great camera work for us novices. Have some smoke coming from exhaust area but nothing looks amiss. Mower runs at correct idle now and most importantly cuts the grass!! Just in time for my kids to help out during quarantine. Thanks again Jeff!!

[@JeffsLittleEngineService]

Glad to help

[@samanth7777]

I did it, I did it I brought my mower back to life.. Thank you thank you Jeff.

[@fzee532]

Thanks for the detailed instructions, I rebuilt the carb and cleaned all linkages, the beast now starts on first pull!

[@crotchcricketts]

Great video, very informative. I especially love that you're listening to Tool in the background

[@emailsupport2873]

Thank you for the WD-40 tip for the seat! Made all the difference in getting the float to sit properly.

[@badger7015]

unquestionably, the best home repair video i've ever seen. thank you!!!!!

[@JeffsLittleEngineService]

Wow, thanks! Glad it helped!

[@andrewprzybyla8871]

Today I cleaned all around the Governor Spring and replaced the dirty air filter. Idled way too fast then died. Will try to rebuild the carburetor. Thank you for your most comprehensive video!

[@awongutume]

Well illustrated and narrated. Thank you for taking the time for this very edifying carb rebuild.

[@jamessommer6077]

Dear Jeff, As I am a small engine Mechanic you illustrate this step by step Carb rebuild like a pro!, I'm very impressed.

[@JeffsLittleEngineService]

thanks friend

[@supertroupin]

Thank you so much. I rebuilt two of these carbs yesterday; both mowers started right up. The guys at El Mel in St. Charles also told me to only use premium gas to keep the engine cooler.

[@gimmesomesugar]

Great video. I just did this very job today 2/23/23. I wish I'd watched this video first!

[@JeffsLittleEngineService]

Thanks friend!

[@tlalmt]

OMG I DID IT MYSELF!!!! Thank you sooo much for the slow concise step by step instructions, with great tips. although I DID NOT use coke to clean, used gum out carb/choke and parts cleaner...Briggs & Stratton Quantum 725.. just mowed the lawn no problems. YIPPPPPEEEE!!!! Namaste'

[@scottlowe514]

Really helped had cleaned everything like you said but after reassembly engine started but would not run. Took off the bowl and cleaned the main jet and found some debris in the bowl cleaned and reassembled, ran like a champ after that. Thanks for the great video

[@saltynutsman1]

Thanks. Followed everything you did, now mower running like new.

[@sambaritone]

Great video! I used it as a guide to fix mine today, runs great now.

[@joeboxer3365]

Jeff thank you for the video, I repair mowers, more on the quick, cleaning out gas tanks and then carb cleaner and compressed air for the passages. The one thing I do different is rather than using wire I find torch tip cleaners with various sizes clear out the most stubborn deposits much easier. Also at same time I use the tips to clear the 3 passages and check flow to the bowl with carb cleaner to make sure the priming system should operate properly.

[@boharley5133]

Jeff, thanks for the video. Just what I needed to get my pressure washer running. After watching a bunch of videos yours was the one that put it all together.

[@JeffsLittleEngineService]

Good job! and thanks friend! I am glad to hear that!

[@deancrampton3884]

Love the tool in the background

[@sygerrryc]

Loved the "tech tip of the day" didn't know about that trick.

[@lou196t]

Love the tech tip Jeff....and the entire video. I am going to try this myself.

[@maryloudonovan1613]

Excellent video! I'm going to go do mine now! Thanks for the good teaching and extra tech tips!

[@BushcraftingBogan]

Bloody hell. Thanks for the Coke idea! I usually just go straight for the carb or break cleaner. But that’s a brilliant and cheap alternative to soften things up a bit.

[@w0lff1e]

Great video! I didn't do a rebuild but a replace. Everything was super clear from the video and well explained. Once I had everything put back together the engine started right up!

[@JeffsLittleEngineService]

Nice work!

[@HuntingCreatures]

Great Video Jeff! I feel that I can do this and get my lawnmower in shape. I got an idea: if I find a free beat up lawnmower in craigslist, I would teach my son how to repair it using your videos. And who knows! It could become a trade for him.

[@cassiellightman]

Very good video, great explanation step by step. Five Stars!

[@georgefazzio9133]

Thanks. You added the part about making sure the choke had to fit inside the u shaped piece for the choke to make. I hadn’t. Redid it correctly, and , BAM, started on the first pull.

[@Brian-tt3op]

Well done, thank you for the excellent guide!

[@rythmblood27]

I really liked this video. I'm strapped for time but may give this a shot. But you make it look easy. Thanks for attention to details like ....be careful about tightening things with too much force & cool tech tip 😊

[@terrynies4717]

thanks for the great video, followed your instructions and tackled my mower. it started on the first pull and runs great. found a bunch of sediment in the fuel bowl .

[@adaisin]

Great informative and detailed video. Thanks a lot Jeff.

[@wck304]

Fantastic video. Really appreciate the tips on typical problem areas! Thanks for posting!

[@JeffsLittleEngineService]

Thanks!

[@christophertavenner3547]

Thanks for your video. I'm doing one right now and every perspective helps

[@JeffsLittleEngineService]

You can do it take your time and be precise.

[@whitelavender7]

Its that time of the year again boys

[@JeffsLittleEngineService]

You said it my man! ... Spring sunshine has arrived in Washington state, finally...

[@billszymborski584]

Great video Jeff! A lot of important tips for beginners and more experienced DIYs too! Thanks!!!

[@JeffsLittleEngineService]

Thanks friend! Glad you enjoyed it!

[@samanth7777]

You should be a teacher! I understood everything you said! May be I can bring my mower back to life! Thanks for posting.

[@JeffsLittleEngineService]

thank you!

[@grant.m.ball0603]

I've subscribed to your channel quite a while ago I love your videos I enjoy tinkering with small engines like lawn tractors walk behind mowers string trimmers pressure washers blowers etc your videos are helpful and I enjoy watching them

[@JeffsLittleEngineService]

thanks friend

[@pelston105]

Jeff...Absolutely brilliant! Very clear description, great video and great solution. Tried to start my Toro after about 6 to 7 years and new that is worked ok all that time ago but try as I did, could not get it going. Tried looking at manuals, parts catalogues but all to no avail until I happened upon your video. Watched up to the end of the carb service and thought this might be the problem. Did as you described and it fired up first time! Thank you so much! Phil from Luxembourg

[@JeffsLittleEngineService]

thanks friend! good job!

[@1broncobranndy]

Jeff, thanks for the info.... outstanding!

[@LuisReyes-eh1ex]

thanks so much...very detailed information...exactly the kind i was missing from other similar videos i already watched...also thanks for the "top secret" tip of the day!

[@liamfslal]

Great video! Playing Tool in the background just made this the coolest repair video ever!

[@JeffsLittleEngineService]

Right on!

[@josephwaters94]

Great video, one of the best I have seen on this subject... Thanks

[@JeffsLittleEngineService]

thanks friend, I am glad it helped!

[@robertrios4885]

You explaine things so well...keep up the good work and thanks fo sharing.

[@JeffsLittleEngineService]

Thanks friend!

[@rockartistet]

great video. very clear. and great camera works

[@julius923]

Great video seriously. Would like any additional comments on the advance technique of dousing the entire lawnmower with gasoline at the end. LOL.

[@JeffsLittleEngineService]

seems to always happen.....!.

[@michpich6319]

Jeff, you're a flamin genius. My mower was coughing and sputtering and when she did go the revs never did get up....till you did this vid. I watched what you did, copied most, if not all your remedies and finally adjusted THAT SPRING a hair, and Voila! the creature is alive....the revs came up, it speaks, no more stutters! Jeff, you're a credit to the human race. Darwin should be and will be proud of you.....thank you, thank you, thank you, you wonderful human being! Now excuse me, gotta go, there's a lawn waiting for me.

[@JeffsLittleEngineService]

Thanks for watching !

[@zaplaabs]

I didn't rebuild the carb (I replaced it) but I did use this video so I knew how to disassemble the related parts. Thank you very much. Put the new carb and it started on the first pull :)

[@firebladex8586]

with all the gas he spilled over it how could it not? 😂

[@jakeswisher9477]

Thank you! Great video And Tool in the background big plus👍

[@garettmachinetech6422]

Nice video, Thanks for your time!

[@JeffsLittleEngineService]

thanks friend!

[@mikeraab8516]

It was the ports in the brass nut. Thanks a lot Jeff!!! Spent all afternoon trying everything to get my snow blower to start! You are a life saver☺

[@Maik1968]

Would be Pepsi okay as well 😂🤓 Great video, to overfill the gas tank doesn’t reduce the result! Thanks for this very educational video. I am right now rebuilding my on ride mower and cleaning the carburetor for the first time. Greetings from Germany 🇩🇪

[@JeffsLittleEngineService]

Thanks friend!

[@lindanichols7893]

Great video, Jeff! Very good close ups and you didn't rush the process. I've called repair guys to my house and while they replace parts, don't spend enough time here to clean the carb. I'd rather get my hands dirty and know that it was done right. Thanks again for sharing your knowledge.

[@JeffsLittleEngineService]

Thank you Linda!

[@lindanichols7893]

jeff, after you soak the parts in coke - then what??

[@JeffsLittleEngineService]

a good scrubbing with a toothbrush, then rinse thoroughly with soap and hot water. Sometimes a more heavy duty chemical is needed to remove the corrosion. Sometimes Coke works sometimes not, it depends on the type and severity of the corrosion.

[@mattieboy01]

Way better than the other vids on the same subject and i was sure i could do it before this now i am....double sure? lol Thanks!

[@AM-vy2pp]

much appreciated; excellent video

[@TimeForYourMind]

Thank you for the video/details, much appreciated.

[@TimeForYourMind]

Follow-up. I did what you showed and the $50 craftsman we just purchased from a garage sale that didn't run worth beans, now purrs like a kitten and goes through our very tall grass with ease. *yiippeeee*

[@charlesmartin7347]

Wow great video, 😆Thank you

[@dddddd2100]

Very good video, Thanks

[@Buddycoop1]

Excellent video. FYI, I've done both a rebuild and replaced the whole carb. Depending on your time and frustration level they both have their advantages. I once stripped the brass bolt so had to buy a new one. Another time I didn't tighten it enough since I was paranoid I'd strip it so gas leaked all over the place. Sometimes it's easier to spring for a whole new carb and just pop it in.

[@timidtornado2869]

Good video.....I'd really like to see one where all the components are shown and explanation of what they do....the spring setup saved the day for me......and the groove on the little rubber seat was a saver.....the auto choke arm attachment would have been good to see.

[@cmcnichols4]

Excellent - thanks Jeff. Very helpful.

[@JeffsLittleEngineService]

Glad to hear it!

[@lukemartin7029]

Nice tech tip! :)

[@migueltrevino8932]

muchas gracias Señor ,buenos vídeos Dios lo bendiga thks.

[@paveldub]

Hey Jeff you are the best fixer

[@JeffsLittleEngineService]

thanks friend. thanks for watching

[@pauldemelo1704]

Thanks for the tips

[@CaptTurbo]

Good instructive video. I like to soak my carb parts in Pine Sol rather than Coke.

[@robertanderson536]

Very well presented presentation. Easy to follow - well done.

[@JeffsLittleEngineService]

thanks for watching

[@danielg.1365]

Very detailed👍🏽 thank you!!!

[@JeffsLittleEngineService]

Glad it was helpful!

[@fleadoggreen9062]

Nice tech tip

[@georgehogle9602]

Nice video, clear calm and concise. nice explanations what the parts do, good tech tip also. Thanks I like how you zoomed in on the linkage and showed how to tip it into place. Little afraid of drinking the coal afterward.

[@walterparada1530]

Thank you sooo much I've been looking for a good video on the linkage on this engine and turns out I'm missing the little spring for the auto choke.

[@warrenlambard3408]

Thanks Great video

[@Jim-ie6uf]

Great video. I had one today, lost the last needle seat behind the work bench. Gone forever, talk about pissed off, still mad at myself.

[@JeffsLittleEngineService]

aw damn, that has happened to me too....

[@stevebennettband4670]

Great video

[@KEANUWHITE]

Great Video, thank you, I had to hit the LIKE button my friend. The one thing I can take away from this video is that, I'M DONE WITH COKE.

[@TobyPratt]

The best video for my needs on KZbin! Good job! My only suggestion is to go over how the air vane works. Since I didn't understand how the air vain was mounted I thought that it had been accidentally disconnected somewhere else on the engine, so I had to search elsewhere on KZbin for a video on air vains.

[@JeffsLittleEngineService]

Thanks friend, good advice!

[@randyr6610]

Good video

[@KT-mb3gp]

You can use a set of torch tip cleaners to clean all sizes of small holes works great ! Buy them at welding supply stores.

[@pollydor07]

GOOD KNOWLEDGE , THANK YOU MUCH . I'D TROY BILT TB-360 8.75

[@pollydor07]

THANK YOU

[@ChristopherB711]

Thanks! You saved me a $100. 👍🏻

[@JeffsLittleEngineService]

Glad I could help!

[@johnhutsenpillerjr1785]

try vinegar, white, apple cider etc, works trust me !!! and torch tip cleaners work good for the plug (its actually the main fuel jet) mine disintegrated rainelle wv flood of 2016, the flood water had bad stuff in it !!! turned rubber wheels into purple plastic !!! (yea I got a mouthful of it swimming to safety) some priming bulb's have a hole, some not Affects the mixture !!! nice video. sometimes I redo the governor (connect the governor spring to the lever, (makes RPM governor controlled instead of over speed control. all the best Sir thanks. also a drywall screw can be threaded in the float seat to remove it, (be careful)

[@freddiejohnson3936]

Wow you know your stuff i have two Toro self starts lawnmower the carburetor is very clean i also rebuild both carburetor and both lawnmower won't starts also when i pull the starter rope it throw mist of gas out the carburetor and both lawnmower is fairly new and they both have the same carburetor as in your video here

[@rreinhard43]

Thank you

[@madmanmechanic8847]

Nice job

[@JeffsLittleEngineService]

Thanks!

[@carytowncat]

Nice, thank you and good to see you wearing nitrile gloves.

[@brucehampton1545]

Hopefully this will help me. I've got nothing so far. Cleaned out carb and not sure about how the auto choke works so this helps.waiting on spark plug testing tool to check for spark.

[@hotrocketdj]

Thanks for the video , I got it going' * * * * *

[@paulsilverman2944]

Thks

[@Nick-wj5gw]

This was such well put together video. Inspired me to take this project on myself. Thank you!

[@JeffsLittleEngineService]

Take your time and you can do it!

[@angelamyrick3143]

THANK YOU! For this video. You have the same type carburetor that I have. My lawnmower wouldn't start and your step by step helped me to clean the carburetor and it runs beautifully now. Saved a bunch of $$$. My carburetor was clogged because I didn't put any fuel stabilizer in with the gas. I didn't need to replace parts but I did clean the little residue that was there. Where can I get the replacement parts? I used the floss brushes for using between your teeth to clean out the holes versus wire. Again thank you. 😊

[@leeb.7188]

Angela Myrick: You can get replacement parts at a small engine repair shop or if you have a Craftsman mower you can go to Sears. But if you can wait a few days, it's cheaper to buy them online. Try repairclinic.com or partselect.com or Amazon. Repairclinic.com has good prices, fast shipping and helpful videos. Good luck!

[@JeffsLittleEngineService]

good advice Laura B. I use a local mom and pa shop for most of my parts when possible.. Sometimes I do use Amazon or Ebay to get my parts as well. :)

[@marshallborder9089]

Working on one just like this cleaned the carburetor out and mowed the yard - had to adjust the governor spring . It ran great , but after I parked it gas ran out of filter- going to replace the needle valve and seat - hopefully this'll fix the leaking problem . If there's anything else that you would do holler at me . Correction it is the primer style carburetor - not the Automatic style .

[@JeffsLittleEngineService]

that should fix it!

[@GreekVegetarianRecip]

Excellent video tutorial! Thank so very much. I am going to try this and I hope there is not too much dirt on the fuel line and on the other components, thereby making it difficult to remove them and consequently breaking them... May I suggest...what if you gave some links for some of the products on Amazon, (or where ever)? Might you make a small commission on that? I see ppl doing that here on YT. I found myself craning my neck trying to see the numbers on those packages, so I can order them.

[@edwardjackson9871]

That was an excellent video. So clear and informative. Thank you. I think I can do mine now from watching your video. No skipped steps or anything to guess about. Where do you get the replacement parts?

[@JeffsLittleEngineService]

Amazon or Ebay

[@dirkvantroyen9170]

I'd replace the O-ring on the intake and the gasket on the brass "nut" too

[@jocelyneparent6471]

Thank now it’s working.

[@mehrdadkhayeri6986]

Came for carb cleaning tips, stayed for the TOOL background music.

[@JeffsLittleEngineService]

Rock on!

[@user-wr7qk5uv1j]

Молодец!

[@edwardjackson9871]

thanks for excellent vid. you said to be careful not to disengage that black arm that goes into the engine. can you do a vid on how to reconnect that arm if you do accidentally disengage it? thanks.

[@stoolie10]

I have the same setup. Replaced carburetor and still surges 🤔. These are usually pretty simple to fix