Fix Craftsman M100 Mower that Wont start

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These are the new design all plastic carbs briggs and stratton is putting on all new lawn mowers.
Parts:
AutoChoke Carburetor (No Red Primer Bulb on airbox) 799584
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Regular Primer Carburetor 593261
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Just the White Jet assembly in the video. 592792
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Disclaimer:
Due to factors beyond the control of Hank's Garage, I cannot guarantee against improper use or unauthorized modifications of this information. Hank's Garage assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Hank's Garage recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Hank's Garage, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Hank's Garage.

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14 май 2021

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Комментарии : 107

@shaneh1003 Год назад

Man, thanks very much for this. I had already cleaned and serviced the carburetor, but it wouldn’t start upon putting it all back together. The pin-holes looked clean, but needed to be bored back out, or I just couldn’t tell how they were partially blocked. I did a deep clean with tack and nail on them, put it back together, and it ran wonderfully after this. I was fixing it for a friend, and had become so overly frustrated. Many bad experiences with lawn mowers over the years. Thanks, Hanks.

@adamboyd9302 Год назад

This took me 35 minutes. Started 2nd pull after watching this tutorial. Thank you so much for posting. Saved me $

@patrickryan9740 2 года назад

THANK YOU... 5 STARS... I have a place out in the woods 40 minutes from everything... my mower is less than 1 year old same issue.. your video saved me a trip to get it fixed.. I appreciate your knowledge...

@BillDavis-zd9rs Год назад

Thanks to your instructions I was able to get this engine running! I used a small staple to clean the small "main" jet and paper clips for the larger holes. That was the only real difference in what I did.

@joseduran101 2 года назад

Thank you very much for the tutorial, it is very well explained. I was a little worried about not being able to fix my mower and my grass was already very big, I watched your video and I was pausing it to do everything as you did and it worked perfectly!!!! MANY, MANY THANKS

@leebrooks6464 4 месяца назад

Thank you so much, saved me a hundo…. Fixed in 10 minutes, I was sitting waiting for the mower shop to open!!!

@markg7095 Год назад

Thanks! I bought a 2 year old non running Craftsman. 20 minutes later, she's running.

@keithcreel9576 2 года назад

Just wanted to say "thank you". I did exactly what your video shows and the mower started right up. There was one hole that was clogged. Cleaned it with a guitar string.

@CreativeV3 5 месяцев назад

Thanks for you advice. I used an air compresser to clean the three little holes. I put everything together and my lawn mower works like a charm!

@user-oq7ru2de9d Год назад

Perfect. Used that exact mower five times. That was the fix. Thanks.

@momadog5687 4 месяца назад

This is a fine tutorial, even an ole woman like myself can do it. I hope I can do it without throwing any hissy fits 😂

@ryanleeoakes2015 Год назад

Spot on. Mower ran right after I followed these instructions

@RealMark999 2 года назад

I have the same Craftsman mower that I bought a year ago from Lowes and had a problem with it starting after sitting for almost a year. I took the filter off the carburetor and poured some gas into it and it started right up, but then it immediately died afterwards. I primed the mower and then added a little more fuel into the carb and it immediately started and stayed running. I was also able to restart it several times afterwards without it dying. Sometimes you have to remove the excess moisture that has accumulated from sitting during the winter. I would recommend using Sta-Bil storage fuel stabilizer and running it through the carburetor like I obviously forgot to do before storing the mower.

@troyashton3287 4 месяца назад

Exact problem, exact fix!! Well done.

@tonym6920 3 года назад

Hate those plastic carbs. Have a great weekend Hank! 👍👍

@norge696 3 года назад

I beg to differ, they're stupid easy to clean.

@mrbluray2277 Год назад

This video fixed my mower. Thank you!

@jaredbevier6622 Год назад

Thanks boss! One summer of use before it wouldn't start. Followed along, and now I'm mowing.

@WOLFlikeDOG 5 месяцев назад

Yup I can add in that this DOES WORK LIKE A CHARM. thank you

@rogercamp6071 3 года назад

You fix these carburetors just like I do,once you've done a couple of them they're pretty easy to service and put back in service, I cleaned out one yesterday on a Craftsman pressure washer and it started right back up,like you said nine times out of ten a simple cleaning job is all that's needed.

@shannon102 3 месяца назад

Thank you! Cleaned the carb on my less than 1 yr old mower easy peezy with this video!

@kabo0se_goes_kaboom935 Месяц назад

If you don’t have anything to hold the line or are afraid of the line being cut. Use a bolt from the plastic red top cover and insert it into the line It’s a great plug

@Fragrance-Fam Год назад

Great step-by-step video! I noticed that you skipped over connecting the PCV hose back to the air hat when putting things back together. Did it give you as hard of a time as it did me?!? 😂 Thanks for the video. My mower didn't start this spring after putting it up in the fall. After following your tutorial, it fired right up! Going to use some fuel stabilizer when I store the mower this fall.

@hanksgarage_ Год назад

Probably just didn’t record it or missed the clip when I edited everything

@Fragrance-Fam Год назад

@@hanksgarage_ thanks again for the excellent video. You have saved folks from a bunch of frustration and $$. Take care.

@neilw5541 Год назад

I'm struggling to fit the PCV hose back on at the moment... haha

@Fragrance-Fam Год назад

@@neilw5541 that thing was a PITA to get connected again. Not complicated, just a really tight squeeze in there (as you know)! LOL

@74346 2 года назад

Thanks for the video man. I fixed my mower I got last yr from this video.

@totalweirdo3378 2 года назад

Worked like a charm and learned to do something new! Thank you!

@mikeskinner3927 4 месяца назад

Thank You Sir. Worked like a charm.

@6851843 2 года назад

I just want to thank you so much I have the same problem it's less than a year old the way you explained everything very clearly made it simple didn't leave me guessing very pleased thank you again

@virginiasmith8174 7 месяцев назад

I am going to have to try this. I had removed the spongy filter and cleaned it, but that didn't help the problem. I also didn't realize I needed to oil it. Wish me luck!

@bam2922 3 месяца назад

I use a cutting torch tip cleaner to clear the ports. I don't have to do that anymore because I only use treated ethanol free gasoline in my mowers and weed eaters.

@ToyotaPreviayearsago Год назад

Dude you rock👍

@hijodesieteleches Год назад

I did it! I did EXACTLY what you did and it worked!!! Thank you soooo much!!

@jackiebritt743 Месяц назад

Thanks man very helpful

@timtweet8149 9 месяцев назад

Put your filters in a quart size zip lock add your oil and work it in. Makes less of a mess. Also depending upon carb float needles come in rubber tipped and non rubberized. Do not use carb or brake cleaner on rubber parts/gasket o rings.

@johnbryant_ 2 года назад

This is a great tutorial, thanks! I was able to take it all apart and put it back together but it didn't resolve the issue. I ordered a new carburetor and hope that is all I need.

@logmeindangit 4 месяца назад

It has been a year since you posted that you were going to get a new carburetor. Did you? Did that fix it?

@johnbryant_ 4 месяца назад

@@logmeindangit Yes, and I just fired it up for the first time this year with no issues.

@LiveEasy 3 месяца назад

Thanks man!

@L.A.of-The-family-Jones Год назад

Excellent job nothing left to guess about.

@metoon3092 3 года назад

Absolutely the Best carburetor yet. Those old tin aluminum brass jets, etc Blah. I have worked on nearly a hundred mowers this past season. Thanks for the video!

@hanksgarage_ 3 года назад

For people that work on them they are easy. For the average consumer they are a nightmare. At least with the old carbs you didn't have to clean them every 6 months, I run stabilizer in mine so I never have that issue, but again the average consumer is completely unaware or just doesn't care.

@WhitefolksT Год назад

@@hanksgarage_ the average consumer leaves it on the curb for me on trash day when it won't start 😁

@slickganja3567 2 года назад

Cant help but to think about the movie Slingblade when dealing with lawnmowers

@hanksgarage_ 2 года назад

French fried taters

@patrickkane3826 2 года назад

Thanks man. Perfect instructions. Got my buddies cleaned and mowed the shit out of his yard! Haha

@WhitefolksT Год назад

Flaps up for the salad shooter effect 🤘🏻

@hallowsbane 3 месяца назад

Thanks this worked!

@kinsleybc 3 года назад

Thank you for this video!!

@lucasalvarez986 Месяц назад

Thanks!

@ryanthomas49 3 года назад

Perfect mower repair.

@robdogbme 3 года назад

Great video, thank you for posting!!

@derekbrooks7246 Год назад

Awesome Video! It Worked!!! Thanks so much

@stoolie10 3 года назад

I’m going to get the welding tip cleaner now that I’ve seen that demonstration 😊👍. I cleaned a friends like that over the weekend two times and it still had a mild surge but ran decent. Replacing the main jet is the last option but is roughly half the cost of a new carburetor. I still have a couple more of those types of mowers in like new condition with the auto choke setups. Have a great night Hank, thanks for sharing great content!

@diamondpaintingwiththebesties 3 года назад

Great job ❤️

@logmeindangit 4 месяца назад

I just got a free M100, and the guy said it would start but not stay running. I took the carburetor apart, and the little holes are clean, the float works great, and the needle valve is in good shape. It starts, but dies in under a second. It runs only with the fuel inteoduced by pressing the red bulb a few times. Once that fuel is gone, it dies. Not sure why it does not stay running. I'm not able to see if the butterfly moves from the fan action under the flywheel, but the butterfly (and the control rod assembly) opens and snaps closed again when moved manually. The fuel line from tank to carb flows freely. I'm fairly good handling small parts, so was careful disassembling and reassembling, including the 7- and 8mm-head screws. WTH?? Somehow, there is no vacuum pulling fuel from the bowl. At least, that's my guess. The frustrating part is I can't see what's going on down there on the linkages when I'm in behind the handle yanking rhe cord. I disassembled and reassembled the carburator just as your very well-made, nicely narrated video showed. Thank you for the video.

@hanksgarage_ 4 месяца назад

This is going to sound funny because it could be really simple. But I believe your issue is a gas cap problem. Replace the gas cap and you should be fine.

@logmeindangit 4 месяца назад

@@hanksgarage_ Hi, Hank, it was not the cap ... this time! I disassembled the carb (for the third time, learning a little more each time) and took some silicone tubing I had on hand, and used it as a means of blowing air through every pasage in the carburetor and subcomponents I could find. I felt something come loose in one of those black plastic passages, and when I put it all back together, it made a strange sound - it STARTED! 😂 The cap may cause simular problems, but that was ot the culprit *this* time. Thanks for the tip, though. I'll add it to the list. Take care, and Happy Spring!

@pamhires330 Год назад

THANKS VERY HELPFUL 😊😊

@michaelcribbs5435 Год назад

Great video!

@80srockerable 2 года назад

A set of guitar strings work good for cleaning small pilot holes.

@ErlangerVeritas 2 года назад

Thanks for the video. I bought this exact model last year and it wouldn't start yesterday. After a quick trip to the hardware store to grab a set of welding tip cleaners I am back in business!

@queenstownkid 3 года назад

1 pull hank ..thx for video

@catfishslayer100 2 года назад

I pull the engine cover/pull starter and remove the tank and carb at the same time and clean out the tank. Drill out the jet and its good to go.

@PProgress28 2 месяца назад

I am really struggling with this issue. In May early May i cut my grass and noticed it was running rough. After the cut I removed the carb, cleaned it and put everything back together. Now it won't start at all. Checked for spark and I'm getting spark. Only thing i noticed is that the float seems to not have the full freedom to drop down once i put the bowl back on. Another issue is that when i use starting fluid it STILL WILL NOT RUN. Help!

@hanksgarage_ 2 месяца назад

Check the choke linkage could be that the choke is not working

@melindaortiz9741 2 года назад

Good video

@marshallborder9089 3 года назад

Cleaned a lot of these carburetors out , cheap made - don't take much dirt to stop them from running either .

@brettharmer753 Год назад

Thank you for the video. The carburetor for the m100 looks different from the Amazon link you provided. Is it the 799584 or the 799583?

@TVChanon 2 года назад

I've used this lawnmower twice and now I have to be a mechanic to get it to even start?! Never buying another craftsman.

@hanksgarage_ 2 года назад

It’s not Craftsman. It’s these Briggs engines which are sold on a variety of brands. Stick to Honda

@TVChanon 2 года назад

@@hanksgarage_ 100% agree I have a Honda that's worked every time I pulled the cord for 15+ years.

@azelechiwsky Год назад

Mine continues to leak from the main jet. I checked to see if it’s seated correctly and it looks to be set perfectly. Necked the float it seems to be working properly. Any other suggestions? TIA

@hanksgarage_ Год назад

Is the needle inside of the float properly? You may also have a gas cap that isnt venting properly.

@azelechiwsky Год назад

@@hanksgarage_ I checked the needle and it looks to be seated properly. I feel the float doesn’t have enough pressure to close off the flow of gas. I’m going to check and see if there is anything in there. Maybe something got stuck and isn’t letting it seat properly.

@GotXDeleted 4 месяца назад

I have this mower, what if the symptom is that it will start but then die after a couple of seconds?

@hanksgarage_ 4 месяца назад

Clean the carburetor, also could be the fuel cap is bad and not venting properly

@carabela125 3 года назад

Now I have to get out of my chair and go to HF

@young610scrooge Год назад

what does it mean when this works but the mower doesn’t operate at high speed

@koffinNAILS Год назад

Mine runs fine for a bit then every bump you hit or lean it on a hill it sputters.

@harryjones2420 2 года назад

so how does the primer bulb work?

@BigChi61 3 года назад

What if it’s new and won’t start

@melindaortiz9741 2 года назад

Interesting

@cbreezy1322 2 года назад

Is it absolutely necessary to take the float part out? I ordered the wire dirt remover and some carb cleaner. I'm going to try to widen that bottom hole. Does it have to be smaller than the other 2 holes? Thanks for the video.

@hanksgarage_ 2 года назад

Just for inspection it is, no it doesn’t. Don’t widen it too much.

@cbreezy1322 2 года назад

@@hanksgarage_ Thanks for the reply. My father in laws mower. Had it one yr and paid cash and there's no hope of finding the receipt to request any warranty help. Would something like the Lucas cleaner helped it from getting clogged?

@hanksgarage_ 2 года назад

@@cbreezy1322 you will want to use a fuel stabilizer if it’s going to sit a while. Stabil can be found at lowes and home depot.

@cbreezy1322 2 года назад

@@hanksgarage_ Thanks

@berardia4 3 года назад

How did the rejetting of the main jet work out on the other video you did with that carb?

@hanksgarage_ 3 года назад

Zero issues with it. Just used that mower a couple weeks ago. Could not be happier

@007MegaRoll 2 года назад

I have same issue ony after a few uses. its not acceptable , no more crafstman

@melindaortiz9741 2 года назад

Didn't know the needle bracket came off

@IXxCRUCIFIEDxXI 2 года назад

Thank you! I have to fix my lawnmower now and I'm not looking forward towards it

@hanksgarage_ 2 года назад

Right on

@steve10-10 3 года назад

At least that one has a primer to it. Those auto choke ones are garbage. Had one and could not get it to run correctly. The choke would not fully open or it would just flutter open and closed causing it to run like crap.

@hanksgarage_ 3 года назад

Sounds like a bad thermostat

@norge696 3 года назад

toss the auto choke out and slap on one that primes. But like hank said, it's most likely a thermostat problem. With the engine completely warmed up, the butterfly should be complete open.

@steve10-10 3 года назад

Actually got another one in on trade and noticed the rubber o ring on the back of the carb wasn’t on correctly. So I put it on the carburetor like the one I got on trade and now they both run great. Learn something new everyday!

@LiveEasy 3 месяца назад

Can I venmo you money for a beer?

@007MegaRoll 2 года назад

these not made for regular fuel you have to buy premium store fuel