EXPERT! REBUILD a Briggs and Stratton Lawnmower AUTOMATIC CHOKE CARBURETOR
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- เผยแพร่เมื่อ 28 ส.ค. 2024
- 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!
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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!!
Glad to help
Not only an excellent tutorial, but also a powerful confidence builder to attempt the repair for the neophyte! Thank you very much Jeff!
Glad it helped!
Dear Jeff,
As I am a small engine Mechanic you illustrate this step by step Carb rebuild like a pro!, I'm very impressed.
thanks friend
I did it, I did it I brought my mower back to life.. Thank you thank you Jeff.
Great video. I just did this very job today 2/23/23. I wish I'd watched this video first!
Thanks friend!
unquestionably, the best home repair video i've ever seen. thank you!!!!!
Wow, thanks! Glad it helped!
Thank you for the WD-40 tip for the seat! Made all the difference in getting the float to sit properly.
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!
Great video, very informative. I especially love that you're listening to Tool in the background
Thanks for the detailed instructions, I rebuilt the carb and cleaned all linkages, the beast now starts on first pull!
Love the tool in the background
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'
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!
Nice work!
Thanks for your video. I'm doing one right now and every perspective helps
You can do it take your time and be precise.
The assembly of the lawn mower could be done without any problems th-cam.com/users/postUgkxTPN04aT-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!! :-)
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.
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.
Thanks for watching !
You should be a teacher! I understood everything you said! May be I can bring my mower back to life! Thanks for posting.
thank you!
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 :)
with all the gas he spilled over it how could it not? 😂
Great video! Playing Tool in the background just made this the coolest repair video ever!
Right on!
Loved the "tech tip of the day" didn't know about that trick.
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
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.
Well illustrated and narrated. Thank you for taking the time for this very edifying carb rebuild.
Its that time of the year again boys
You said it my man! ... Spring sunshine has arrived in Washington state, finally...
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
thanks friend! good job!
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.
Thank you Linda!
jeff, after you soak the parts in coke - then what??
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.
Hey Jeff you are the best fixer
thanks friend. thanks for watching
Thanks. Followed everything you did, now mower running like new.
Great video Jeff! A lot of important tips for beginners and more experienced DIYs too! Thanks!!!
Thanks friend! Glad you enjoyed it!
Good instructive video. I like to soak my carb parts in Pine Sol rather than Coke.
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☺
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.
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
thanks friend
The best video for my needs on TH-cam! 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 TH-cam for a video on air vains.
Thanks friend, good advice!
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.
Good job! and thanks friend! I am glad to hear that!
Very well presented presentation. Easy to follow - well done.
thanks for watching
Great video seriously. Would like any additional comments on the advance technique of dousing the entire lawnmower with gasoline at the end. LOL.
seems to always happen.....!.
You can use a set of torch tip cleaners to clean all sizes of small holes works great ! Buy them at welding supply stores.
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.
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.
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 😊
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.
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.
Fantastic video. Really appreciate the tips on typical problem areas! Thanks for posting!
Thanks!
Thanks! You saved me a $100. 👍🏻
Glad I could help!
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.
aw damn, that has happened to me too....
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.
Great informative and detailed video. Thanks a lot Jeff.
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 🇩🇪
Thanks friend!
Excellent video! I'm going to go do mine now! Thanks for the good teaching and extra tech tips!
Great video! I used it as a guide to fix mine today, runs great now.
Love the tech tip Jeff....and the entire video. I am going to try this myself.
Nice tech tip
Excellent - thanks Jeff. Very helpful.
Glad to hear it!
Very good video, great explanation step by step. Five Stars!
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 .
that should fix it!
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!
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!
great video. very clear. and great camera works
Nice video, Thanks for your time!
thanks friend!
I'd replace the O-ring on the intake and the gasket on the brass "nut" too
Thank you! Great video
And Tool in the background big plus👍
You explaine things so well...keep up the good work and thanks fo sharing.
Thanks friend!
Came for carb cleaning tips, stayed for the TOOL background music.
Rock on!
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. 😊
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!
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. :)
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.
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.
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)
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
Great video, one of the best I have seen on this subject... Thanks
thanks friend, I am glad it helped!
Very detailed👍🏽 thank you!!!
Glad it was helpful!
tip on removing the rubber seat: use a blow gun and shoot compressed air into the fuel inlet. the pressure will pop the seat out without damaging it.
Joe Jirak I
GOOD KNOWLEDGE , THANK YOU MUCH . I'D TROY BILT TB-360 8.75
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.
Well done, thank you for the excellent guide!
Quantum carburetor sounds like something on Futurama.
Yes! LOL
What a great video on this rebuild. I just did one today on same mower. I did not replace the needle valve and the red seat gasket. Maybe that's why mine still won't start. It will run on a little shot of either and then dies. Love that coke idea for cleaning. Quite the tip on that. Other than the coke, what do you use to soak/clean carbs?
Thanks for watching. I finally bought an ultra sonic cleaner and it does a great job. I have use many different detergents/soap and all seems to work well in the ultrasonic cleaner.
much appreciated; excellent video
I have the same setup. Replaced carburetor and still surges 🤔. These are usually pretty simple to fix
Wow great video, 😆Thank you
Great video
muchas gracias Señor ,buenos vídeos Dios lo bendiga thks.
Very good video, Thanks
Thumbs up for the video. Another thumbs up for TOOL playing.
Also a little metal piece the size of a pencil lead fell out of mine. Same carb, any idea??!
float hinge pin?
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?
Amazon or Ebay
Buy yo a torch tip cleaner works wonders
Thks
Nice, thank you and good to see you wearing nitrile gloves.
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.
Thanks Great video
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 .
Wanted to rebuild my B & S carb, but found a complete carb on Amazon for the price of a few gaskets..,$12!
good luck with that cheap piece of crap!
@@JeffsLittleEngineService Cheap or not, the gaskets and float parts will be useful if the carb is as you describe.
Where is the carburetor to air filter housing gasket?
it's there but not as crucial as when there is a primer button
Nice job
Thanks!
Thank now it’s working.
This was such well put together video. Inspired me to take this project on myself. Thank you!
Take your time and you can do it!
Jeff: My Briggs & Stratton 7.0 horse lawn mower will not hold an even idle. It starts out high, then drops to low, then goes back up high, then drops low again. I rebuilt the carb with new gaskets, idle seat, and valve. It didn't do this before I rebuilt it. Previously, it was hard to start which led to rebuilding it. Is this a simple fix? Thanks for responding back. THUMBS UP!!!
It sure sounds like a fuel delivery issue. There must be something not right or plugged inside the carb.
I Have Noticed On You tube No One Puts Fuel Filters On These Push Mowers. If You Want To Do Less Carburetor Clean Outs, It Is Advisable To Add A In-Line Fuel Filter Between The Tank And Fuel Tap. They Are Cheap Guys. Save A Lot Of Headaches. You Won't Be Cleaning Them Carburetors As Much
Jeff appreciate the videos and think I got one that may stump you. 4 year old Briggs & Stratton 121q002-0064-f1. The beginning of the season would run on first pull then die 10 mins later. I've changed air filter carburetor, spark plug, fuel line, and this morning the armature...only to realize the same problem. What am I missing? Local shop here is busy for two weeks since yesterday's hurricane.
Sounds like a fuel delivery problem or a contaminated fuel system.. If you replaced the original carburetor with an inexpensive cheapo aftermarket version that is probably the problem now.
I tried starting it with a shot of starting fluid but won't go. I still have the original carburetor so will run through it again and see what happens. thanks for the reply.