This Riding Mower Had Fuel Coming Out Of Muffler! Step By Step Repair Video With Donyboy73

[@donyboy73]

🔻WATCH NEXT🔻 How-To Install The Best Oil Drain Ever For Your Lawn tractor! ➡kzbin.info/www/bejne/hZDKhZSed5hmfKM

[@breannaoliver6316]

@donyboy73. How much you want to make bit . This is New carburetor from Mexico is better quality than China carburetor.

[@demetriosa7646]

I have this same motor on my tractor. I just had to replace the hydraulic lifters bc of the loud ticking at start up. How do you feel about these engines based on your professional opinion. My tractor is about 20yrs and motor runs great no smoke!

[@mikfalk8019]

Thanks for this excellent video

[@craigjohnson3603]

Good video, it's lucky the motor wasn't ruined. I've seen several blown up because of this. My friend gave me one because he was tired of tripping over it in his shop. I sold parts off it for $150.😊 It had a hole in the block, scored cylinder, broken balancer and camshaft. The overhead valve single cylinder motors can be like rolling dice sometimes. Also the fuel solenoid will stick or corrode and cause a meltdown. Another reason to check your oil alot!

[@jdubya54]

Thanks. Had the exact problem with my mother in laws mower. The shut off has fixed the problem

[@HobbyMotorDK]

Great video - and congratulations on 400K - fully deserved 👍👍

[@TopCat2021]

I had the same issues with my lawn mower after 2 fuel shut off valve failures and 1 rebuild carb then a new carb i installed a quarter turn valve on the fuel line 3 years and no further problems. Thanks for the video.

[@marcmyers1465]

I started ordering stainless fuel shutoffs this year. Only $2.00 more... 😉👍 I tend to run the machine dry every time anyway. 🤷🏼‍♂️ Not that I don't enjoy working on equipment, I've just never noticed a shortage in bodgered equipment to repair... 🙄

[@garyalensr]

I have shut offs on all my equipment. When im done mowing i turn it off and let it run till it dies. I do this even during the mowing season. I use only non ethanol fuel, but ya just never know. My motto is its better to be safe then sorry. The only time I feel at eas with fuel in the carb and bowl, is when its running. Awesome video as always. Thanks for sharing all your knowledge.

[@sgnt9337]

I follow the exact same process with my riding mower!

[@ralf5345]

Ich verfolge deine videos schon jahrelang und bin immer wieder begeistert, wie deine Reperaturanleitungen technisch und kameramäßig produziert sind. Vielen dank dafür. grüße aus Deutschland

[@donyboy73]

Greetings from Canada!

[@100vg]

I had gas getting into the oil on a 2007 Craftsman 46" deck with a Briggs single-cylinder 20HP after a neighbor tried to help me with the carburetor for hard starting. He took it off and apart to inspect it and found an internal gasket had been "repaired" with RTV because it was torn, but he lost some internal parts in the grass in the process and we couldn't find them (and his re-RTV "fix" didn't work, either). Now I know to only disassemble a carb over a workbench. DOH!!! Rather than buying carb rebuild kit, because couldn't know where all the replacement parts went without all the internal parts, I bought the crazy expensive Nikki replacement Briggs OEM Upgrade carb in the engine manual ($170 USD). While I was at it, I checked compression and it was low, so I lapped the valves, with the help of your videos (Thank you!). It ran like a beast for the remaining mowing season last year, but now it's burning oil (or something). I don't see smoke, so it's going somewhere, and it's fouling the spark plug. I'll check compression again and check the valve gaps if it's low, but if not, that means replacing the rings. After reassembling from lapping the valves last year, one valve guides got stuck higher than normal on one side and I could not budge it either way, so I guess that could be an issue to check for now, too. It's always something with these tractor mowers. I am hemorrhaging money just to mow the lawn. I cannot tell you how many parts have been replaced on the effing tractor mower overall, and now I have to do more. It may be cheaper to do the work myself, but when will it end? After this work, I will have replaced everything I can imagine could be an issue on the deck and the engine, so hopefully it will end soon. Thanks for everything you do for us, Don! 👍👍

[@jesterr7133]

I had a Troy Bilt Pony with a Briggs engine given to me several years ago for parts. I was told that the engine was locked up, but it was just building too much compression. I did a valve adjustment, and it fired up and ran great. It would have been a free repair if I hadn't started parting it out before I checked it. I learned a valuable lesson. I spent a little bit of money and got a good mower out of the deal.

[@marcmyers1465]

Out of the 3 Best shops in a 60 mile radius 2 have closed down in the last year, and the last one can't hire enough help for the one's that retired "This Year" ! 🤦🏼‍♂️ Sadly, it appears to be the way of the world in this economy. 😕

[@donyboy73]

@@marcmyers1465 The small engine business is changing so quickly!

[@parsons585]

Wish we had a shop like yours close by! Hard to find good small engine repairmen!

[@luckyjim51]

Perfect timing...!! I changed my oil and there was gas in it this spring. the last few times I've used the mower, it smoked at first. I've all ready ordered the parts, and the next time I get to the cabin/work camp. I'll get this taken care of.... Thanks!

[@mjg263]

Great job, good thing you got it before the engine got ruined by running it with thinned out oil!

[@louchitchat]

thank you for clear and detailed instructions

[@M0ntaroo]

Great video as always, I always look forward to watching it on a Friday afternoon while I do nothing @ work lol

[@donyboy73]

Well, this is time well spent for you!

[@barrypettit3668]

Another great and informative video. I am still amazed companies do not install fuel shut offs in the factory.

[@marcmyers1465]

They certainly use to... 😒 Wonder why they stopped ? 🤨

[@martinflanagan2506]

I guess the factory saves a few cents by not installing fuel shut off valves . And an OEM carb with no plastic bushing on the throttle , UNREAL for sure. Good video Dony.

[@donyboy73]

@@marcmyers1465 they have become too greedy!

[@fadetounforgiven]

I had a similar problem a few weeks ago with my brush cutter. If I left the gas open while the engine was off it would fill the cylinder (engine is "upsise down"). Adding insult to injury, it's an old machine (34 years and still going strong) so its carburettor is quite old style. So much so it has a port designed, the mechanic said, to spill fuel if the machine was not in its supoosed upwards position. In this case, the needle wouldn't close the hole and, well... ir would let fuel go everywhere. The needle was worn out and no wonder I noticed I was using way more fuel than I usually did. One needle and tuning later it's working like a charm.

[@ericvaughn1126]

Love my 15HP Kohler Command. I added a fuel shutoff to it years ago when it seemed that the solenoid quit working and I priced a new solenoid. Never had an issue with mine leaking gas through to the crankcase though. I have had several customers with Briggs do that and get hydrolocked though.

[@BobGallerie]

Kohler Command is the worst engine on the planet. I dont like anything Kohler engines, toilets, faucets

[@ericvaughn1126]

@@BobGallerie Kohler Courage? Yes. Kohler Command? Not so much.

[@hunter7476]

@@BobGallerieKohler engines are very good every brand has a bad model the Kohler courage is a terrible engine this particular engine mainly only had fuel pump and carburetor issues other than that good engine. The command v twin engines are some of the best on the market lots are in commercial mowers and I have seen many with over 5000 hours.

[@AtomicFallout757]

In my opinion, this specific series / model of Kohler engine is bulletproof. My grandfather bought one one these tractors new in the 1990s with a 16.5HP Kohler in it (same engine, just slightly less output than the one shown here) and he put many, many, many hours on it mowing his one acre property until he passed away a few years ago. That tractor was still running and mowing perfectly when it was sold, and it never gave him trouble during the 20+ years of ownership.

[@demetriosa7646]

I have the same Kohler command motor but 18hp. I bought it in 2004 and the engine purs. The only 1 things that this motor is flawed is that the lifters can tick at start up. Sometimes it will go away upon warm up but mines wasn’t. You have to take of the head to get to the lifters. My head was in great shape for 20yrs use. Motor is back together and continues to Purr!

[@AtomicFallout757]

@demetriosa7646 My grandfather's machine had the same issue for many years, but it would usually go away after it warmed up. Shortly after he bought the tractor in the 1990s, he had a service tech from Sears come out to look at it because of that problem, but the Sears guy said he was using too thick of oil (15W-40) when he should have been using 10W-30. I do not know if he ever started using a thinner oil or not, but it continued to run great for many years.

[@Flammable281]

It’s always a good idea to put a fuel shutoff valve on your machine. It’s handy to have when changing out fuel filters or when you need to remove the fuel line from the carb not to mention the fuel flooding the crankcase issue. Great video!!!

[@marcmyers1465]

That's A Fact ! 😁

[@Paul1958R]

Don, My 1996 Craftsman lawn tractor with Briggs 28N707 (2nd engine since 2005) would do that and hydrolock. I rebuild the carb several times to no avail so I installed a fuel shutoff between tank and carb and run the bowl dry each time I finish using the machine. That was about 15 years ago and the machine still runs great. Paul (in MA USA)

[@hickorystx]

Fantastic tutorial and effective clear narration. Thank you again Mr. Don!! It is a pleasure to be able to learn from you!!! Stay healthy, happy and forever safe! 😊

[@RichardSivonen]

Awesome as always donyboy73. I have a poulan pro pp19a42 bought it about ten years ago. I haven't had any major problems with it, her name is bug eyes 👀 I am 70 years old now. Always kept it clean and oil and filter change and grease the front end. Just common sense of taking care of your equipment. Have a blessed weekend 🙏 ✨️ 🦅🦅🦅🫠

[@markk3652]

My LT1000 had the same problem, I installed the gas shutoff valve and never had the issue again. I simply finished mowing, turned off the fuel, and run the engine until it burns all the gas in the carb and then quits.

[@bobmcl2406]

Another great video. I have not seen this problem yet..... or have I? My son's Cub Cadet with a Kohler Courage single cylinder mysteriously was found to have a high oil level, causing smoking. We put it down to an accidental overfill, but I think I'll go back and check a few other things now. Thanks Dony!

[@kelvinpen3144]

I installed a similar filter rather than the little red one it work just fine 👍and also installed a fuel shut off on my craftsman LT1000 bcuz fuel was seeping I’m thinking a bowl or solenoid gasket 🤷‍♂️I will dig into it after mowing season

[@markfolino6976]

Great video Donyboy great camera work too

[@Francisco-sx7th]

Great job! Your customer is almost having a new machine...I will follow your tip and shut off my carburetor valve when not using my mower, it makes sense but I never do it.

[@donvoll2580]

g day Don Boy very detailed video. Ths Good idea with new carb on expensive house

[@Roby005]

Grazie da Italia----Thanks from Italy😊

[@tikofann5884]

You are my go to mower repair guy. I’m a younger woman in my 70’s and with your tutorials I have kept my yardman riding mower working from 2009-2024 and it’s still working but I got a slightly used John Deere at my relative’s estate sale this summer and they are surprisingly similar with JD being much smoother!

[@kirikayuumura3256]

The original carburetor had a case grounded solenoid (one wire from harness) for the anti-backfire function, hence it needed to have that carburetor to engine ground strap wire. The new one uses the ground insulated solenoid (two wire from harness), but as it's replaces the one wire type, they include the conversion plug, of which you attach the one ground lead to the engine. The reason the one wire system needed the ground wire is because even though the metal carburetor is mounted on the two metal studs, the carburetor itself is insulated being sandwiched between the intake gasket and the plastic air box, so it is possible for the carburetor to position it's self on the two studs so there is no metal to metal contact, thus not a good ground. Not good ground would mean the solenoid would have restricted or no path to ground, so it wouldn't work reliable or at all. The main design flaw that causes the "engine floods with fuel when the float sticks open" is that it's a gravity feed fuel system and the height of the bowl vent (where overflow gas would vent out of and where air can be allowed in to equalize the pressure inside of the bowl) inside of the carburetor main orifice and the air intake is higher than the intake port, which lets fuel level overflow drain into the intake port. It's worse on the Briggs engines as the intake port is lower than the carburetor main orifice of which is lower than the air intake. The fuel is just flowing all downhill, which is into the engine. The non-gravity feed or fuel pump types almost never have this issue, nor the engines that have the air intake lower than the carburetor main orifice and have the carburetor main orifice lower than the intake port. So, the fuel shut off is a best solution to prevent damage due to a stuck float. And for everyone else, if you are going to use your tractor, check the gas first. If the tank is empty, but it was full last you used it, DO NOT TRY TO START THE ENGINE! .... Take it to donyboy73's shop right-away! 😁

[@WherestheKaboom-g2p]

Had this happen as a result of a bad coil. One cylinder was firing. The other was not. Over time, gas built up in the sump. Which also raised the oil level. Changed the bad coil. Then, like you, changed the oil & filter. Runs so much better now. But the owner, did use it for some time. Before we made the repair. Hopefully no internal damage was done.

[@linwoodharris7314]

Thanks so much for fully explaining your repair of that lawn mower. You are the best!

[@kencurtis228]

Bowl also needs Drained prior to Winter

[@andrewsteele7663]

Thanks Don, a really informative video, Cheers

[@howardmanning1672]

Excellent job done

[@Hanson3]

Kohler 12-521-03-S Kit Inlet S. The needle and seat kit for gravity feed is around $50. The new complete Kohler Carb is around $90. I have a 95 JD STX38 with CV12.5 Kohler owned New, and I've done three rebuild card kits with seat myself and it will leak again after a couple of years. I suggest installing a fuel shutoff valve as Donny said and turn off after use.

[@stellarproductions8888]

Awesome instructional video, to help those who are just learning mechanics Dony! I 100% agree with your methodology, as I utilize the some methods as well, in my mechanics shop. But I gotta say, if I lived in a 1-million dollar home, I could easily afford a 14,000 dollar top of the line diesel powered Kubota tractor, or an John Deere X700 series diesel tractor, to do all my mowing. But we often find that rich folks will over-spend on their cars, buying Bugatti's, Ferrari's, Lamborghini's, etc, but spend the least amount possible, on their lawn equipment. I know, try to figure that out lol. Loved your video!

[@kencurtis228]

TY for Sharing

[@ScottAllison-jf4ke]

The owner has a nice clean machine.

[@ecttreker9816]

Great service. Honest and thorough. 👍👍

[@Jamwcjconn]

Great video 👍

[@eaglespirit3052]

I was recently given an old Craftsman with this issue. This video is very helpful. Thanks!

[@jjjuarez312]

He's good.. I love watching his videos I am a small engine mechanic myself.. I wouldn't trade it for the world..

[@stuckinnj9554]

Good video. Any concerns of the plastic shut off valve & metal clamps rubbing/vibrating on the oil filter?

[@williamwelch7]

Thanks Dony

[@Davidjb37721]

Thanks for your help 😊

[@Tommyr]

I have an older model of that tractor. Mine's 16 years old now.

[@frankzemberi4322]

Always good job. Frank

[@mauril811]

Recently I bought an old but pretty perfect condition Yard Machine RL 638 with Tecumseh-engine. Of course as an old biker the first of all I checked valves, put a new plug, new air filter, and oils. But after that when I tried to start, engine rotates but not run! Then plug off, and check the spark, and no spark! What the heck? And with an old plug, no spark. Then I checked the coil with multimeter, but it was OK. All wires as well seemed to be OK. Then I figured, that must be ignition lock and spraying CCR. Then I removed the lock and checked it with key, and then I find it what might be the problem! Delta branded key goes to the lock in both ways, but the groove of the key must be to the right side. If wrong side, engine turns, but no spark!

[@DavidBall-v5i]

Thanks!!!😊❤

[@gearhead366]

The toothed washer should go on the other side of the ground lug. Electrical connections should not depend on the conductivity of a washer, bolt or nut. The ground lug should be in direct contact with the block.

[@redeemedheathen]

Nice video and good job

[@karlschwab6437]

I would have replaced the float bowl gasket too just to be sure of no leaks there.

[@BearE9090]

Great video, thanks

[@rameshpersaud7131]

Thank you, keep up the good work our friend

[@georgestrickland9278]

you're right,very common on briggs,never saw it before on a cv kohler

[@davidcraven277]

An east check for fuel in the oil is put a flame to the dipstick if it lites easy is got fuel in it

[@brianmcconnell7988]

Awesome video and great tips as usual !

[@michaelteti5148]

Thank you you help alot

[@gnic76]

I had a similar problem with a snowblower, carb seat failed and the shut off valve.

[@miguelramos2213]

Great video !!!👍

[@harrygrimley4352]

Great job 👍

[@jakeschisler7525]

I always shut off my gas on my zero turn and the valve also is for switching gas tanks.

[@paulfrizzell31]

👍great video

[@silvercommander]

Excellent

[@mikemckeown9477]

Hi I purchased a craftsman lawn tractor 19.5 Briggs it’s used and it was running rough I started tinkering with it watched lots of videos about similar things but I noticed the low idle screw was all the way in so I adjusted it out 1.5 out and it’s running great I’m pleased as shit did I do the right thing ?

[@davidduma7615]

My Kroller did that a couple years ago... no gas in the crankcase but just coming out the muffkin.

[@cottydry]

Yea, I always shut off the fuel valve at the end of the season and let the engine run out of fuel. And when it's stumbling right before quitting, I give it full choke to try and get that last bit of fuel sucked out.

[@philliphall5198]

Last 4 engine replacement were due to gasoline in the oil, listen up folks Check your oil and use the cut off valve, save money 😊

[@flyjarrett]

I’d buy an OEM carb regardless of the value of the home in which it is stored

[@darrellwampler3882]

My first clue was a empty gas tank👍

[@donyboy73]

Yes it was!

[@RussellBooth1977]

A broken camshaft decompression mechanism is also another cause of the engine being hard to crank over on startup. The Briggs Intek in grandfather John Deere ride on lawnmower was blown according to the mower mechanic who was going to just replace the camshaft in the engine after he burned out the starter motor. It was my uncles lawnmower which he gave to my grandfather only about 8 years after he bought it brand new & I don't think that they ever got it serviced. Oh, in 2010 my uncle bought it because with his previous mower to that, the ignition coil went in it & he gave up after he replaced the spark plugs,he gave it to my grandfather who just replaced the coil & sold the mower. I don't seem to get that sort of Desjardins in my family !

[@marcmyers1465]

Pretty popular repair these days on the Briggs Inteks and Honda Mowers... 🤷🏼‍♂️

[@richardwernst]

Got a link for _reliable_ shutoff valves, perhaps in various fitting sizes?

[@TorgeirFredriksen]

Didn't you say in a previous video to not use those fuel filters on gravity fed carbs? Thx for sharing the video btw :)

[@philliphall5198]

Seems people would know by now to put a manual fuel cut off valve by now, and use it Will save your engine no matter what brand of engine you have $10.00 b😮is great insurance 😊❤

[@timetraveler6281]

Can you link the shut off valve

[@byronwoolfrey1039]

Nice video, but ouch on replacing a carburator that you can't just put a needle and seat kit in. Kinda like what they are doing with the blades now where you can't just replace the woodruff key.

[@LiamFagan-sf7jp]

does this issue on a different mower have the same solution for example a husqvarna?

[@jimmuller6962]

Great video. I would only add that if possible you shouldn’t run the engine too long if the oil has much gas in it. The oil is diluted and doesn’t lubricate properly. You will possibly cause bearing and cylinder damage.

[@donyboy73]

Yes good point!

[@BobGallerie]

Dony. How much was the new oem carb

[@jamesm568]

A few shut off valve is your friend.

[@jesterr7133]

I am working on a Snapper Ninja push mower with a Honda GCV160. This machine sat outdoors for several years without an airbox before it was given to me to work on. Despite replacing every component of the fuel system (except the tank) with OEM parts, the engine will only run well fully choked or on the highest speed setting. I have replaced the air box, air filter, carburetor, all gaskets, choke lever, fuel lines, and gas cap. I have also replaced the spark plug and cleaned the connection points on the coil and flywheel. I have also checked the valve clearances, and they are good. What could I be missing? This machine will also lose all of it's fuel if you let it sit without shutting the fuel off. It has done this with two carburetors, and I am finding no evidence of gas leaks or fuel in the oil. I can't figure it out. I have been working on this machine for over a year, and I am ready to be done with it.

[@donyboy73]

Did you use an original Honda carburetor? Also check to make sure gas tank is venting, you can do this by draining fuel through carburetor by removing bowl to make sure the flow is good.

[@mrfixit7743]

I have the same engine on a mower, the governor spring is discontinued, Would you know where i can get a replacement? I have lookef just about everywhere!

[@mnlew7156]

👍👍

[@hfin1222]

wouldn't just replacing the fuel solenoid prevent this problem?

[@DinoWebster-to4zm]

Wouldn't the fuel solenoid shut off the fuel?

[@paulmonk7820]

Can't you attach a hose to the drain plug? 😮

[@johnmilner7603]

Why didn’t the customer want the needle and seat problem fixed? The new carb may end up with the same problem down the road. New is not always better.

[@timkaldahl]

I just replaced the carb on my Briggs, and I could have gotten away with an oil change ans a shut-off valve? 🤦‍♂️

[@gadasavideos8564]

Older machine to have that engine. Mine has the mechanical fuel pump as tank is under seat.

[@kendesjardins5109]

WHY is there gas in the oil?

[@thenewhumandesign]

Lol a million dollar house

[@korhing1066]

A Million Doller House and Cutting Grass with A Craftsman !! What ! ??

[@Joe-cp2db]

What do you think of a husky 0 turn lawn tractor

[@scottbryant2235]

Donnie, you feel other options are perfectly fine if it's less than a million dollar house? Sorry - just had to poke at ya!

[@donyboy73]

lol, either way just put a shut-off valve on your machine!

[@marcmyers1465]

Some Customers are Auto-Chondriacs and have Deep Pockets... 😃👍

[@robertmailhos8159]

Hope Kohler doesn't use Nikki carburetors

[@74willy81]

Every gravity fed piece of equipment that comes into my shop that doesn't have a manual fuel shut-off in place gets one before it leaves the shop. Regardless of what it came in for.All motorcycles for instance have been equipped with them for well over a hundred years. Why do yard and garden equipment manufactures persist it cutting a 50 cent item out of the price of a mower at the peril of the end user. It's not if but when this cost saving measure bites you in the butt.

[@rverro8478]

12 seconds in...Gas in the oil ? Needle and seat.