I’m glad it was helpful and your ready to get the job done. Please give this video a thumbs up, subscribe if you haven’t already and share my channel to help it grow. It would be greatly appreciated.
Great job! Thanks for making. I have almost the same lawn tractor, Craftsman 42" and is is about 26 years old. Also had the Walbro carb. First time the Fuel Needle had to be replaced!
So cool to see really clear videos. Really liked the idea of grounding down a normal spanner for that solanoid bolt. And how easy it was to get that brass seat out.Thanks again Brad.
That was a very thorough and informative video! I learned a lot watching this. I've had that issue many times with various tractors. You sure do a fine job of laying it out step by step and even the tools you'll need. I bookmark your videos for reference. Thanks!
Gas in the oil will dilute the oil and destroy your engine! Excellent video! Thank you, many young men never had a dad to teach them these things, thank you! I always tell young boys to learn to grow food and fix things. Thank you.
Well done. I added an inline fuel solenoid to shut off the fuel. I know my wife or I would leave the manual one on at some point. Now I have 2 things (anti backfire and solenoid) that should shut off the fuel if they are both working.👍
Thank you for this helpful information. My son bought a mower that had been sitting a couple of years. This was our same issue. All fixed and ready to go.
I’m glad it was helpful and thank you for the kind comment. Please give this video a thumbs up and tell your friends about the channel to help it grow. It would be greatly appreciated! Thank you for watching:)
Thanks for this man. I just got passed down my grandpas mower that hasnt been used in 5 years and its been impossible to find how tos on it. Im just learning the stuff and really appreciate it.
I’m glad it was helpful! Thank you for watching and the kind comment. Please give this video a like subscribe if you haven’t yet and share my channel to help it grow. It would be greatly appreciated!
Friend has a very similar engine on a mower he got for free. We got it assembled, serviced and running but over night it'll fill the cylinder with gas to the point that it hydrolocks. The geyser when you pull the plug and run the starter is spectacular. We'll give it another go with the new knowledge, great video bud👍
Very nice clear instructions. Exact thing happened to my Snapper rear engine rider. I decided to just try the cheap 40 dollar aftermarket carb. Followed your instructions taking apart and putting back together and started right up and so far now no gas in oil and works like a champ. Time will tell!! Thank you very much for the clear instruction and vid.
I'm glad it was helpful and thank you for kind comment. Please give this video like and share my channel to help it grow. It would be greatly appreciated. Thank you for watching.
I’m glad it was helpful and thank you for the kind comment. Please give this video a like and share my channel to help it grow! It would be greatly appreciated.
I’m glad it was helpful and thank you for the kind comment. Please give this video a like, subscribe and share my channels with your friends to help it grow. It would be greatly appreciated:)
thankyou for encouragement - tease i'm a 1 hand wonder....... 30 30 gunshot = loss fine motor on right hand except thumb - kinda same boat ...........I HAVE FIXED , SERVICED, and figured out I CAN DO STUFF , have had amazing success ...............YOU are a great EXPLAINER
I'm glad it was helpful! Thank you for watching and the kind comment. Please give this video a like, subscribe if you haven't already and share the channel to help it grow. It would be greatly appreciated!
Your lawnmower has created diesel my friend lol - I have the same issue with my toro, just not as much gas comes out of mine though very informative, thanks!
Great video... great working knowledge... I have the same problem with the same engine wish I saw your recommendation to use oem before ordering an aftermarket one... I winged it with diagnosing and disassembly but watching this gave me the extra confidence I need to get this thing up and running again... Thanx
@@JohnsonsSmallEngines yes I'm replacing the whole thing because it seems like the previous owner crossthreaded the fuel solenoid and after I cleaned all the rusty gas and crud out of the bowl the threads won't grab so I figured I'll save time and replace the whole unit instead of rebuilding it.
@@JohnsonsSmallEngines Update... so far so good finally got it running, rebuilt brake caliper and did a full clean up and tune up... Thanx again great work keep it up
You are the best I like the way you explained everything to the wire I was going to cut my yard today when to the garage and my lawnmower it was full of gas in my oil should I put a cutoff valve on my gas line and should I run something to my crankcase to get all the gas out if so what should I do I'm going berserk thank you so very much for your videos I have a Craftsman t240 Kohler 22 hp 7000 series and I just learned something about this solenoid a good videos turn the key on I can hear click thank you so very much
Hi Henry, you can put a fuel shut off in but I would suggest rebuilding the carburetor. Draining all gas from engine and replace oil filter is all you need to do.
I have almost that exact tractor that I bought new in the fall of 1996: Model 917.256890 Serial 092596D (Sept 26 1996) Original engine B&S 28N707 0173-01 960830ZD (Aug 30 1996) I replaced the engine in 2005 due to catastrophic failure (broken connecting rod). The replacement engine - which it still has - is B&S 28N707 1026-E1 991102ZE (Nov 2 1999). Its interesting that the replacement engine evidently sat for over 6 years before I purchased it. Around 2010 it began to experience hydro lock after sitting between uses. I tried rebuilding the carb several times without success so I installed a fuel shut off and now just run the carb dry at each shut off. No more issues. I completely rebuilt the tractor in 2020 during Covid as the frame was badly cracked in the front - probably from years of using it in the winter with a small plow blade. I was lucky to find a vintage parts tractor (no engine) with a perfect frame. I also rebuild the hydrostatic trans (Hydro-Gear 310-0500) to replace the seals. The current engine has 390 hours on it and I estimate the entire tractor to have over 700 hours in its almost 29 years. Paul (in MA)
A little trick I discovered : take a carburetor and hook a 1/4" hose to it. hold it old it up right and blow and you should be able to tell the air is going through it. Now turn it upside down and you should not be able to blow through the hose. When turned upside down the float should close the flow.
Faulty gas cap (not breathing) will build pressure and that pressure will push your needle valve down and through the carb up into the intake . Just happened on mine the other day.
A faulty gas cap does just the opposite and creates a stoppage of the fuel flowing eventually causing engine to starve of fuel from carburetor shutting machine down. The engine creates the vacuum needed so the carburetor can pull fuel.
@@JohnsonsSmallEngines Yes it was doing that also and after l parked it and no vacum. It was shooting up through the carb like it was being pumped. Changed the carb and was still doing it . Changed the cap and it stopped. So l don't know guess will see if l find gas in the engine next time l go to use it.
Good video first time it happened to me. My push blower wheel fell off, so I was trying to fix that. Maybe that caused the float to stick. the gas run into the oil Two big wheels so when the wheel fell off, it was tilted too much.
After draining the crankcase, do you think I need to air out the crankcase's intake, with a leaf blower, to get as much gas to evaporate as possible? Or should an overnight oil drain suffice?
It wouldn’t be a bad idea to drain it twice but it is not needed especially if your able to drain the engine all night you should be ok. If you do have a oil filter and you are draining the engine twice, remember to also change the oil filter again.
Thank you. I’m glad it was helpful! Please give this video a thumbs up subscribe if you would like, and tell your friends about my channel to help it grow. It would be greatly appreciated! Thank you for watching.
On the 1/2 inch wrench how think is it now? I have to smuggle one into work to grind down. Just trying to figure out the thickness now? Thanks for the advice.
Thank you so much for the video. I do have a question. I followed all of your steps and cleaned the carburetor. I filled the oil and the fuel tanks. It's turning on which is better than what it was doing before but it is giving out a lot of smoke. Is this normal and does the smoke stop eventually or did I do something wrong?
Hi friend, I just came across your channel. I subbed. I couldn't help wondering what happened to your hand? I'm glad it hasn't slowed you down any. Keep up the good work.
I let everyone know within the first 5 seconds of most of my newer videos. I was born with only one hand. My motto is “If I can do it you can too”. Thank you for watching and supporting my channel! Please share the channel with friends to help it grow. It would be greatly appreciated!
@@JohnsonsSmallEngines u are a trooper almost lost my arm in work accident 12 yrs ago 6 months out I feel your pain as long as u don't lose your tongue ull be fine peace!!!!!!!!
I've got a Craftsman T206 Riding Lawn mower. All the gas disappeared; found it in the oil. Naturally, I got blamed, so we filled the gas back up and the same thing happened, so it obviously wasn't me. We've traveled far enough down the road to understand that it must be the carburetur, but now comes the task of replacing it. (We're not experts enough to try to fix the carburetor itself.) Can you offer any guidance?
The easiest way to correct this issue is, drain all gas from the engine, put fresh oil in and replace (purchase a new) the carburetor with the OEM "original equipment manufacturer" carburetor.
Thanks so much for this video. I thought my lawn mower was done. It was fine at the end of the season but when I started it up this year it was smoking. When I tried to engage the blades it started sputtering and stalled out. I thought I was going to need a new tractor. I had gas in the oil too. I drained the oil, replaced the filter and got a replacement carb from Amazon. That spring was hard to get. I did get a little bend but straightened it out. I started it up okay but now it seems that it runs rough on high RPMs. If I lower the throttle it starts running smoother and I can slowly increase RPMs. It still not right. Do I need to replace the spark plug? Any suggestions? Thanks again for this video.
I cannot diagnose a symptom without seeing the engine while it’s running and I have no luck with aftermarket carburetors for the larger Briggs and Stratton engines. I would suggest trying to rebuild the carburetor that came off your engine if it is an original OEM “ original equipment manufacture”. Yes I would replace the spark plug, and fuel filter and the air cleaner if needed.
@@JohnsonsSmallEngines okay thanks. Going to replace spark plug and air filter. Replaced fuel filter and installed a shutoff valve in fuel line. I have never worked on a carburetor that's why I just replaced it.
Another great one! Thanks again for answering a previous question about my S120 pre-lube. Just used it the other day. No white puff of smoke. I'm wondering if the rings needed to seat?? Anyway, thanks again, glad I found your channel.
My Ariens 42 with 18.5 hp has acted like the valves were not adjusted correct or broken compression release and won’t turn over to start with brand new battery and starter. So I pulled the valve cover and there must have been a couple ounces of gas in it. So smelled the dip stick and smelled strong of gas. So maybe it has been filling up with gas in the cylinder and won’t let it crank over to start. But when I would get it running and if it stalled from grass being so tall then I go to start it again and it won’t turn over fast enough to start. So hoping it’s just stuck carb hydro locking it and not the compression release. I can turn it over up top by hand but put my impact on the crank bolt up top and it won’t even turn the motor over but has no trouble loosening lug bolts on my cars. So going to I guess pull the carb and take a look. I run alcohol free gas but don’t put any Stabil in it for winter non use months. Any suggests anyone please feel free to reply.
Great video!! I just had this happen to my mower yesterday. After it happened and I tried to start it, it didn't try to turn over. It just made a high pitched whining or whistling sound. Did the gas cause an issue w/ it not trying to turn over or could it also be a starter or solenoid issue that would make that sound?
What can happen is the gasoline flows from the tank through the carburetor and into the engine oil then it fills up and goes into the combustion chamber where the piston is and if both valves are closed, and you go to start the engine, you will have a liquid lock where the piston will not move because the fuel is in the way. Your starter solenoid most likely is OK. You will need to remove the spark plug. Make sure the spark plug wire is not near the spark plug hole and spin the engine over to relieve the fuel that is in the cylinder. I would suggest spinning the engine over by hand and make sure you have many many rags or something to catch the fuel that will be coming out of the front spark plug hole. Once you have all the gas relieved from the cylinder, you can go ahead and try to crank the engine with a starter, but as I said, be careful where the spark plug wire is sitting so you do not catch any fuel on fire if you do crank over the engine while the spark plug is out.
(1)The carburetor is the only way fuel can enter the engine. If you purchased an after market carburetor?? If yes, there is your issue. If not then take apart new carburetor bowl and check needle valve and seat for dirt. (2) maybe the fuel pump is pushing fuel into the valve cover??. I have never seen it but maybe?? I’m guessing. It normally is carburetor that fails and yes new aftermarket carburetors fail.
@@JohnsonsSmallEngines Thanks for your suggestions. It is an aftermarket carb. I'm going to replace the fuel pump and see if that works. If not, I will go back to the carb.
Hello I too am having similar issues with my 25 year old Mastercraft lawn tractor with 15.5 hp Briggs and Stratton engine. My question is what brand and grade of oil 10W30 or 5W30 would you use for such an old tractor.
My opinion, the brand of oil doesn’t matter as much as the API rating which at the present is SP. Just make sure the oil has that on the back of bottle. Depending on where you live would depend on what viscosity you use. Normally you can find that in your manual for your machine online. In my area I use mostly 10w30.
Would a leaking float taking on fuel and falling pulling the needle vale down also allow too much fuel into the bowl and cause the same problem as fuel in the crankcase?
@@JohnsonsSmallEngines Thank You, Carburetors... one of life's little pleasures. Appreciate your channel. Am now a subscriber. With a rider mower, chain saw, pressure washer and 1971 VW Beetle I am in carburetor heaven. The more you teach us the better we gas guys can keep our investments running.
I had a old Beetle 20 years ago and I wish I didn’t get rid of it. Fun little car. I don’t get into the little two cycle engines anymore as being in business not worth repairing but I keep busy with tractors, snow throwers and many how to operate machines to help all the folks that rather watch a video then read a manual that now you can only get online. How things have changed through the years. Thank you for supporting my channel and if I can help you please don’t hesitate to ask any questions.
The easiest way is drill the holes in the block out so you can slide bolts through then you will need longer bolts so you can use lock nuts on the other side. Get some large fender washers for underneath the frame and bolt engine tight. The proper way would be, remove engine, weld up the frame where the holes are enlarged and drill the holes back out to correct the issue but most DIYers will not have a welder. The first way will work.
You should only use a OEM “original equipment manufacturer “carburetor or equivalent. If the part number of the OEM carburetor goes to a aftermarket with a metal inlet valve, it should work.
dear johnson, I have a B&S 12 hp that uses a lot of gasoline the oil does not smell like gasoline and the oil does not want to burn the exhaust is dry brown rust How come it uses so much gasoline? do you have any idea ? piston rings ? valve ajustment? something else ?
To answer your question with a question. What do you consider is “using a lot of fuel”. That question really cannot be answered correctly as you would need to know what other 12hp engines are consuming. I cannot tell you what they consume as there are so many different variables. If the exhaust coming out is clean burning and engine is running smoothly at full throttle. I would say, it is what it is.
I personally have no luck with the aftermarket carbs for the single cylinder Briggs and cannot afford to put them on a customers machines. Try and rebuild the original Briggs and if it does not rebuild then I purchase an original Briggs. If you try one, let me know how it works out.
I have this problem. I tried to start the engine several times before realizing what it was. Even put more gas in. Then I noticed gas coming out of the air filter housing. Now it won't even click or crank. I assume the fuse? Tried to jumper straight to the starter from the battery and nothing happens. I guess I fix the carb first. Change the oil. Then diagnose the electrical? Help please.
First get a clamp or somehow stop the flow of fuel going to the carburetor. Then pull the spark plug out and you will most likely have a lot of gas coming out of the spark plug hole. Yes, you may have blown a fuse. Stop trying to crank it over. Repair it and hope you did not burnout the starter. Let me know how you make out.
@@JohnsonsSmallEngines Thanks for replying. I got the electrical diagram and I think the starter might be ok if I blew both fuses. I can't hear the carb or starter solenoids. Checked the battery. Has 12.45V, new battery last year. I put it on a maintainer charger overnight. Hopefully I'll have some time after work today to tinker with it. I'm just dreading that I damaged something by trying to start it way too much. I do have another engine very similar to this one that I might be able to get parts from.
There is gas all over the frame, carb, air filter, muffler.... The carb solenoid has gas in the connector. It's bad. I just didn't know. I guess I need more experience with carb engines. Lol
@@JohnsonsSmallEngines Fixed leak in carb. I hear the carb solenoid click when I turn the key to on. Took out the spark plug. It looks pretty good, checked gap and cleaned carbon off. Checked the fuse and it is actually good. Checked the orange/wht wire at the solenoid and it's good when I turn the key to start. I'm not hearing that start solenoid click. I assume that when I check for continuity between the poles I shouldn't have any until the key is turned to start?
Excellent video ,now subscribed. I had a pretty flat out question, basically same small engine that i have here working on i need to know how much oil to fill the crank case back up to the correct level this one had a half gallon of gasoline mixed with some oil, so i am not sure its an 18 hp Briggs and Stratton Poulan lawn tractor.?
Hi Bobby, sorry for the late reply as your comment went to the wrong place. If your engine has a oil filter you will need about 1.75 qts. If you not have a oil filter 1.25 to 1.5 qts. Thank you for watching and supporting the channel!
@@JohnsonsSmallEngines The owner of this lawn tractor Poulan pro 42 INCH CUT LEFT HIS KEY ON AND THAT energized the little solenoid, causing the crank case to fill up with gas, i installed a shut off valve. I realize he still has issues in the carb, but he just bought it only cut with it once and left the key on when he parked it. He's been my neighbor and friend for thirty years i just charged him for oil, guessing his next move and sure enough he offered me for free, his old tractor , 17 .5 hp brigg's with two flats and dead battery ,believe it or not it started right up, after sitting exposed in Florida weather for a year. His neighbor noticed me test driving it on the road in front of our homes came by offered me three hundred and i said well don't really need to sell but since you are a neighbor i guess i could SOLD ,good news is i will in the future make more money from that tractor as more years go by thanks to ethanol. Funny thing it makes no difference how many times you tell them stop leaving gasoline in the engine when you park it for more than 2 weeks, the same folks over and over again so many times i just buy the carb for their needs a head of the repair, i think i might invest in a sonic cleaner they seem to work pretty good from what i have seen on the internet. Competition to sell after market partslikecarb.is so cut throat it almost doesn't pay to clean the old one. My dad had a small engine repair shop that he worked himself evenings and weekends and still worked his gov. job fulltime on base, i share his love he always had for these small engines, he's gone now but his love is carried on through me and i am almost 64 next month, seems like i was 30 something yesterday. Well thank for listening to me rant on about nothing important, Guess how many brought their generators tome after we lost power for a week,43,got to be a record and all had the same issues, ethanol my new best friend. I finished the last one one hour before the power got cut back on.
Hello, I replaced the carburetor and changed the oil. After doing so the engine will start up, but only last about a minute. It sounds like it runs out of gas when it dies. I checked all fuel lines and gas cap but for some reason it keeps dying. When I check the oil it definitely still has gas in it. Do you mind helping me with this?
Almost impossible to diagnose. When home not in front of the machine but I can say you must make sure you’re getting good flow of fuel from the gas tank to the carburetor so I would check that. Also, if you have a electronic fuel shut off solenoid, I would make sure that that is working. Not sure how good the carburetor is that you bought if it is OEM or not original equipment manufacturer? Or I would definitely change the oil again until you know there is no fuel in it.
@@JohnsonsSmallEngines Okay, thank you for the fast response. I realize it's not very helpful to not include what the engine is lol. It's a troy bilt pony, with a Briggs & Stratton 17.5hp. I am very new to working on engines so your help is very much appreciated. I seem to have good flow. I thought maybe the cap wasn't letting air in and creating negative pressure, but even with it all the way unscrewed, it has the same issue. The carb I replaced was leaking gas out of the breather tube, after replacing it, the tank holds gas without having to use the shut off. The replacement was off Amazon. I will change the oil again.
@@JohnsonsSmallEngines For a more concise explanation - The carburetor was leaking gas from the breather tube, and the oil had gas in it. So I replaced the carb and oil. Now the gas stays in the tank. However, when I start the engine. It runs for about a minute, then it slowly putters out. Almost like it's out of gas. If I wait about 30 seconds, it will start up and do the same thing again. - Extra info, when the engine is started in choke, it puffs black smoke with each stroke. -
Does it have a fuel shut off solenoid underneath the carburetor? If it does? Check to make sure it’s working. You may also have a bad new carburetor. Again this is all I can help you with without being there.
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I have been working on lawn equipment for over 65 years- you are a master- good to see young people getting their hands dirty
You are an excellent teacher my friend. Thank you.
Thank you! I’m glad this video was helpful.
Great video, now I’m ready to tackle mine. Thank you!
I’m glad it was helpful and your ready to get the job done. Please give this video a thumbs up, subscribe if you haven’t already and share my channel to help it grow. It would be greatly appreciated.
Excellent video. Great close ups and detail with explanations!
Hi Lawrence, I'm glad you liked it. Thank you for watching, the kind comment and supporting my channel.
Great job! Thanks for making. I have almost the same lawn tractor, Craftsman 42" and is is about 26 years old. Also had the Walbro carb. First time the Fuel Needle had to be replaced!
I’m glad this was helpful. Not bad after twenty six years to be your first carburetor issue. You’re definitely taking care of your machine!!!
So cool to see really clear videos. Really liked the idea of grounding down a normal spanner for that solanoid bolt. And how easy it was to get that brass seat out.Thanks again Brad.
Hi Marcus, this happens a lot on the older machines. Normal wear and tear.
You videos have truly help me man. Keep up the good work!
Glad to hear it! Will Do! Thank you for watching and commenting. It helps my channel grow:)
That was a very thorough and informative video! I learned a lot watching this. I've had that issue many times with various tractors. You sure do a fine job of laying it out step by step and even the tools you'll need. I bookmark your videos for reference. Thanks!
Thank you for watching and supporting the channel.
@@JohnsonsSmallEngines the the
Gas in the oil will dilute the oil and destroy your engine! Excellent video! Thank you, many young men never had a dad to teach them these things, thank you! I always tell young boys to learn to grow food and fix things. Thank you.
This was extremely helpful. Gave me confidence to do it myself. Great camera work as well.
Thank you for the kind comment and supporting my channel!! Thank you for you for watching my videos and I'm glad they are helpful.
Thanks, you help me to repair more than the engine, my mind too to feel grateful, you are a real influencer, you are a real inspiration. Thanks
I’m glad it was helpful and thank you for the kind comment!
Excellent video and details on the problem of gas in the oil, and what caused it, and extremely helpful to fix the problem. Thanks!
I'm glad it was helpful and thank you for the kind comment!
Well done. I added an inline fuel solenoid to shut off the fuel. I know my wife or I would leave the manual one on at some point. Now I have 2 things (anti backfire and solenoid) that should shut off the fuel if they are both working.👍
That will cover pretty much everything!!!
Thank you for this helpful information. My son bought a mower that had been sitting a couple of years. This was our same issue. All fixed and ready to go.
Nice! Thank you for sharing and the kind comment.
Amazing video! I am facing this exact problem with this exact mower, so this video has been incredibly helpful!
I’m glad it was helpful and thank you for the kind comment. Please give this video a thumbs up and tell your friends about the channel to help it grow. It would be greatly appreciated! Thank you for watching:)
Thanks for this man.
I just got passed down my grandpas mower that hasnt been used in 5 years and its been impossible to find how tos on it. Im just learning the stuff and really appreciate it.
I’m glad it was helpful! Thank you for watching and the kind comment. Please give this video a like subscribe if you haven’t yet and share my channel to help it grow. It would be greatly appreciated!
Friend has a very similar engine on a mower he got for free. We got it assembled, serviced and running but over night it'll fill the cylinder with gas to the point that it hydrolocks. The geyser when you pull the plug and run the starter is spectacular. We'll give it another go with the new knowledge, great video bud👍
Very nice clear instructions. Exact thing happened to my Snapper rear engine rider. I decided to just try the cheap 40 dollar aftermarket carb. Followed your instructions taking apart and putting back together and started right up and so far now no gas in oil and works like a champ. Time will tell!! Thank you very much for the clear instruction and vid.
I’m glad it was helpful!Thank you for watching and the kind comment.
Great explanations. Great videoing. Thank you.
I'm glad it was helpful and thank you for kind comment. Please give this video like and share my channel to help it grow. It would be greatly appreciated. Thank you for watching.
Thanks 😊 it was a really helpful video
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very well explained, and it is very helpful thank you very much for sharing your knowledge
I’m glad it was helpful and thank you for the kind comment. Please give this video a like, subscribe and share my channels with your friends to help it grow. It would be greatly appreciated:)
I truly appreciate this video!!!! Excellent directions, you have a new subscriber!!
I’m glad it was helpful. Thank you for supporting the channel and the kind comment.
thankyou for encouragement - tease i'm a 1 hand wonder....... 30 30 gunshot = loss fine motor on right hand except thumb - kinda same boat ...........I HAVE FIXED , SERVICED, and figured out I CAN DO STUFF , have had amazing success ...............YOU are a great EXPLAINER
Happy you shared your background with me and you know we both have to be creative, but we get the job done!
Incredibly good video, Thankyou
Thank you ! I’m glad it was helpful and thank you for for the kind comment.
Very informative video! Thank you so much! 🙏🏼
I'm glad it was helpful! Thank you for watching and the kind comment. Please give this video a like, subscribe if you haven't already and share the channel to help it grow. It would be greatly appreciated!
Your lawnmower has created diesel my friend lol - I have the same issue with my toro, just not as much gas comes out of mine though very informative, thanks!
Ahhh yes, the oldies and well built!
@Johnson's Small Engines I ordered a new carb, adjusted the valves a bit and seems to be doing good now (nock on wood)
Great video... great working knowledge... I have the same problem with the same engine wish I saw your recommendation to use oem before ordering an aftermarket one... I winged it with diagnosing and disassembly but watching this gave me the extra confidence I need to get this thing up and running again... Thanx
Thanks for watching and commenting. I will assume you’re replacing the entire carburetor? If you are, let me know how it worked out?
@@JohnsonsSmallEngines yes I'm replacing the whole thing because it seems like the previous owner crossthreaded the fuel solenoid and after I cleaned all the rusty gas and crud out of the bowl the threads won't grab so I figured I'll save time and replace the whole unit instead of rebuilding it.
@@JohnsonsSmallEngines
Update... so far so good finally got it running, rebuilt brake caliper and did a full clean up and tune up... Thanx again great work keep it up
Good to hear. Thank you for the update.
You are the best I like the way you explained everything to the wire I was going to cut my yard today when to the garage and my lawnmower it was full of gas in my oil should I put a cutoff valve on my gas line and should I run something to my crankcase to get all the gas out if so what should I do I'm going berserk thank you so very much for your videos I have a Craftsman t240 Kohler 22 hp 7000 series and I just learned something about this solenoid a good videos turn the key on I can hear click thank you so very much
Hi Henry, you can put a fuel shut off in but I would suggest rebuilding the carburetor. Draining all gas from engine and replace oil filter is all you need to do.
Great job 👌🏻👍🏻
I’m glad it was helpful and thank you for the kind comment!
Thank you for the video.
I’m glad it was helpful and thank you for the kind comment.
I have almost that exact tractor that I bought new in the fall of 1996:
Model 917.256890 Serial 092596D (Sept 26 1996) Original engine B&S 28N707 0173-01 960830ZD (Aug 30 1996)
I replaced the engine in 2005 due to catastrophic failure (broken connecting rod). The replacement engine - which it still has - is B&S 28N707 1026-E1 991102ZE (Nov 2 1999). Its interesting that the replacement engine evidently sat for over 6 years before I purchased it. Around 2010 it began to experience hydro lock after sitting between uses. I tried rebuilding the carb several times without success so I installed a fuel shut off and now just run the carb dry at each shut off. No more issues. I completely rebuilt the tractor in 2020 during Covid as the frame was badly cracked in the front - probably from years of using it in the winter with a small plow blade. I was lucky to find a vintage parts tractor (no engine) with a perfect frame. I also rebuild the hydrostatic trans (Hydro-Gear 310-0500) to replace the seals. The current engine has 390 hours on it and I estimate the entire tractor to have over 700 hours in its almost 29 years.
Paul (in MA)
A little trick I discovered : take a carburetor and hook a 1/4" hose to it. hold it old it up right
and blow and you should be able to tell the air is going through it. Now turn it upside down and you should not be able to blow through the hose. When turned upside down the float should close the flow.
Great video Sir. Thank you. ❤❤❤❤❤👍👍👍👍👍👀😎
I’m glad you liked! Thank you for the kind comment.
Faulty gas cap (not breathing) will build pressure and that pressure will push your needle valve down and through the carb up into the intake . Just happened on mine the other day.
A faulty gas cap does just the opposite and creates a stoppage of the fuel flowing eventually causing engine to starve of fuel from carburetor shutting machine down. The engine creates the vacuum needed so the carburetor can pull fuel.
@@JohnsonsSmallEngines
Yes it was doing that also and after l parked it and no vacum. It was shooting up through the carb like it was being pumped.
Changed the carb and was still doing it . Changed the cap and it stopped. So l don't know guess will see if l find gas in the engine next time l go to use it.
Good video first time it happened to me. My push blower wheel fell off, so I was trying to fix that. Maybe that caused the float to stick. the gas run into the oil Two big wheels so when the wheel fell off, it was tilted too much.
Good job
Thanks!
After draining the crankcase, do you think I need to air out the crankcase's intake, with a leaf blower, to get as much gas to evaporate as possible? Or should an overnight oil drain suffice?
The overnight is oil drain is good.
@@JohnsonsSmallEngines After refilling the oil, should I then mow the lawn once, then change the oil again to completely rid the gas in the crankcase?
It wouldn’t be a bad idea to drain it twice but it is not needed especially if your able to drain the engine all night you should be ok. If you do have a oil filter and you are draining the engine twice, remember to also change the oil filter again.
Clean and free up the carb shut-off valve and also add an in-line shut-off valve just in case.
good job.
Thank you. I’m glad it was helpful! Please give this video a thumbs up subscribe if you would like, and tell your friends about my channel to help it grow. It would be greatly appreciated! Thank you for watching.
On the 1/2 inch wrench how think is it now? I have to smuggle one into work to grind down. Just trying to figure out the thickness now? Thanks for the advice.
Not sure thickness, i ground it down until it fit, but don’t grind to much off. Just do a little and a time and check it.
Thank you so much for the video. I do have a question. I followed all of your steps and cleaned the carburetor. I filled the oil and the fuel tanks. It's turning on which is better than what it was doing before but it is giving out a lot of smoke. Is this normal and does the smoke stop eventually or did I do something wrong?
I'm pretty sure I replied to your e-mail.
Hi friend, I just came across your channel. I subbed. I couldn't help wondering what happened to your hand? I'm glad it hasn't slowed you down any. Keep up the good work.
I let everyone know within the first 5 seconds of most of my newer videos. I was born with only one hand. My motto is “If I can do it you can too”. Thank you for watching and supporting my channel! Please share the channel with friends to help it grow. It would be greatly appreciated!
@@JohnsonsSmallEngines u are a trooper almost lost my arm in work accident 12 yrs ago 6 months out I feel your pain as long as u don't lose your tongue ull be fine peace!!!!!!!!
If I pull the line from the crankcase off, should I feel air pulsating when i turn the engine over?
Great!!!!!!!!!!!! solved my problems. God bless you.
I'm glad it was helpful and thank you for the kind comment!
I've got a Craftsman T206 Riding Lawn mower. All the gas disappeared; found it in the oil. Naturally, I got blamed, so we filled the gas back up and the same thing happened, so it obviously wasn't me. We've traveled far enough down the road to understand that it must be the carburetur, but now comes the task of replacing it. (We're not experts enough to try to fix the carburetor itself.) Can you offer any guidance?
The easiest way to correct this issue is, drain all gas from the engine, put fresh oil in and replace (purchase a new) the carburetor with the OEM "original equipment manufacturer" carburetor.
Thanks so much for this video. I thought my lawn mower was done. It was fine at the end of the season but when I started it up this year it was smoking. When I tried to engage the blades it started sputtering and stalled out. I thought I was going to need a new tractor. I had gas in the oil too. I drained the oil, replaced the filter and got a replacement carb from Amazon. That spring was hard to get. I did get a little bend but straightened it out. I started it up okay but now it seems that it runs rough on high RPMs. If I lower the throttle it starts running smoother and I can slowly increase RPMs. It still not right. Do I need to replace the spark plug? Any suggestions?
Thanks again for this video.
I cannot diagnose a symptom without seeing the engine while it’s running and I have no luck with aftermarket carburetors for the larger Briggs and Stratton engines. I would suggest trying to rebuild the carburetor that came off your engine if it is an original OEM “ original equipment manufacture”. Yes I would replace the spark plug, and fuel filter and the air cleaner if needed.
@@JohnsonsSmallEngines okay thanks. Going to replace spark plug and air filter. Replaced fuel filter and installed a shutoff valve in fuel line. I have never worked on a carburetor that's why I just replaced it.
If you get all of the parts my video shows how to repair it.
Another great one! Thanks again for answering a previous question about my S120 pre-lube. Just used it the other day. No white puff of smoke. I'm wondering if the rings needed to seat?? Anyway, thanks again, glad I found your channel.
Hi John, good to hear engine is running as it should! Thank you for supporting my channel.
My Ariens 42 with 18.5 hp has acted like the valves were not adjusted correct or broken compression release and won’t turn over to start with brand new battery and starter. So I pulled the valve cover and there must have been a couple ounces of gas in it. So smelled the dip stick and smelled strong of gas. So maybe it has been filling up with gas in the cylinder and won’t let it crank over to start. But when I would get it running and if it stalled from grass being so tall then I go to start it again and it won’t turn over fast enough to start. So hoping it’s just stuck carb hydro locking it and not the compression release. I can turn it over up top by hand but put my impact on the crank bolt up top and it won’t even turn the motor over but has no trouble loosening lug bolts on my cars. So going to I guess pull the carb and take a look. I run alcohol free gas but don’t put any Stabil in it for winter non use months. Any suggests anyone please feel free to reply.
Great video!! I just had this happen to my mower yesterday. After it happened and I tried to start it, it didn't try to turn over. It just made a high pitched whining or whistling sound. Did the gas cause an issue w/ it not trying to turn over or could it also be a starter or solenoid issue that would make that sound?
What can happen is the gasoline flows from the tank through the carburetor and into the engine oil then it fills up and goes into the combustion chamber where the piston is and if both valves are closed, and you go to start the engine, you will have a liquid lock where the piston will not move because the fuel is in the way. Your starter solenoid most likely is OK. You will need to remove the spark plug. Make sure the spark plug wire is not near the spark plug hole and spin the engine over to relieve the fuel that is in the cylinder. I would suggest spinning the engine over by hand and make sure you have many many rags or something to catch the fuel that will be coming out of the front spark plug hole. Once you have all the gas relieved from the cylinder, you can go ahead and try to crank the engine with a starter, but as I said, be careful where the spark plug wire is sitting so you do not catch any fuel on fire if you do crank over the engine while the spark plug is out.
@@JohnsonsSmallEngines Awesome!! Thank you so much.
Have a problem with fuel getting into crank case on 23 HP Briggs. New carb, no change. Any other ideas would be appreciated.
(1)The carburetor is the only way fuel can enter the engine. If you purchased an after market carburetor?? If yes, there is your issue. If not then take apart new carburetor bowl and check needle valve and seat for dirt. (2) maybe the fuel pump is pushing fuel into the valve cover??. I have never seen it but maybe?? I’m guessing. It normally is carburetor that fails and yes new aftermarket carburetors fail.
@@JohnsonsSmallEngines Thanks for your suggestions. It is an aftermarket carb. I'm going to replace the fuel pump and see if that works. If not, I will go back to the carb.
Hello I too am having similar issues with my 25 year old Mastercraft lawn tractor with 15.5 hp Briggs and Stratton engine. My question is what brand and grade of oil 10W30 or 5W30 would you use for such an old tractor.
My opinion, the brand of oil doesn’t matter as much as the API rating which at the present is SP. Just make sure the oil has that on the back of bottle. Depending on where you live would depend on what viscosity you use. Normally you can find that in your manual for your machine online. In my area I use mostly 10w30.
Would a leaking float taking on fuel and falling pulling the needle vale down also allow too much fuel into the bowl and cause the same problem as fuel in the crankcase?
Yes
@@JohnsonsSmallEngines Thank You, Carburetors... one of life's little pleasures. Appreciate your channel. Am now a subscriber. With a rider mower, chain saw, pressure washer and 1971 VW Beetle I am in carburetor heaven. The more you teach us the better we gas guys can keep our investments running.
I had a old Beetle 20 years ago and I wish I didn’t get rid of it. Fun little car. I don’t get into the little two cycle engines anymore as being in business not worth repairing but I keep busy with tractors, snow throwers and many how to operate machines to help all the folks that rather watch a video then read a manual that now you can only get online. How things have changed through the years. Thank you for supporting my channel and if I can help you please don’t hesitate to ask any questions.
I have the identical engine and where the engine mounts to the frame the bolt holes are worn oversized any suggestions on how to fix it ?
The easiest way is drill the holes in the block out so you can slide bolts through then you will need longer bolts so you can use lock nuts on the other side. Get some large fender washers for underneath the frame and bolt engine tight. The proper way would be, remove engine, weld up the frame where the holes are enlarged and drill the holes back out to correct the issue but most DIYers will not have a welder. The first way will work.
Can I replace the carb with one that has a metal inlet valve if the current one has a plastic inlet valve?
You should only use a OEM “original equipment manufacturer “carburetor or equivalent. If the part number of the OEM carburetor goes to a aftermarket with a metal inlet valve, it should work.
@@JohnsonsSmallEngines thank you so much
I just had that same problem this year
dear johnson,
I have a B&S 12 hp that uses a lot of gasoline
the oil does not smell like gasoline and the oil does not want to burn
the exhaust is dry brown rust
How come it uses so much gasoline? do you have any idea ?
piston rings ?
valve ajustment?
something else ?
To answer your question with a question. What do you consider is “using a lot of fuel”. That question really cannot be answered correctly as you would need to know what other 12hp engines are consuming. I cannot tell you what they consume as there are so many different variables. If the exhaust coming out is clean burning and engine is running smoothly at full throttle. I would say, it is what it is.
What does it mean when I have this issue but I just put a new carburetor in and still does it
Sounds like you have a bad new carburetor? Is it a aftermarket carburetor?
What's your thoughts on the $20 carburetors on Amazon
I personally have no luck with the aftermarket carbs for the single cylinder Briggs and cannot afford to put them on a customers machines. Try and rebuild the original Briggs and if it does not rebuild then I purchase an original Briggs. If you try one, let me know how it works out.
But how do you get the gas out of the oil reservoir?
I just drain it, let it drain for 30 mins or so make sure I got most everything out and then reinstall plug and fill with oil and hasn't failed me yet
I have this problem. I tried to start the engine several times before realizing what it was. Even put more gas in. Then I noticed gas coming out of the air filter housing. Now it won't even click or crank. I assume the fuse? Tried to jumper straight to the starter from the battery and nothing happens. I guess I fix the carb first. Change the oil. Then diagnose the electrical? Help please.
First get a clamp or somehow stop the flow of fuel going to the carburetor. Then pull the spark plug out and you will most likely have a lot of gas coming out of the spark plug hole. Yes, you may have blown a fuse. Stop trying to crank it over. Repair it and hope you did not burnout the starter. Let me know how you make out.
@@JohnsonsSmallEngines Thanks for replying. I got the electrical diagram and I think the starter might be ok if I blew both fuses. I can't hear the carb or starter solenoids. Checked the battery. Has 12.45V, new battery last year. I put it on a maintainer charger overnight. Hopefully I'll have some time after work today to tinker with it. I'm just dreading that I damaged something by trying to start it way too much. I do have another engine very similar to this one that I might be able to get parts from.
There is gas all over the frame, carb, air filter, muffler.... The carb solenoid has gas in the connector. It's bad. I just didn't know. I guess I need more experience with carb engines. Lol
@@JohnsonsSmallEngines Fixed leak in carb. I hear the carb solenoid click when I turn the key to on. Took out the spark plug. It looks pretty good, checked gap and cleaned carbon off. Checked the fuse and it is actually good. Checked the orange/wht wire at the solenoid and it's good when I turn the key to start. I'm not hearing that start solenoid click. I assume that when I check for continuity between the poles I shouldn't have any until the key is turned to start?
@@lrocky223 the
Excellent video ,now subscribed. I had a pretty flat out question, basically same small engine that i have here working on i need to know how much oil to fill the crank case back up to the correct level this one had a half gallon of gasoline mixed with some oil, so i am not sure its an 18 hp Briggs and Stratton Poulan lawn tractor.?
Hi Bobby, sorry for the late reply as your comment went to the wrong place. If your engine has a oil filter you will need about 1.75 qts. If you not have a oil filter 1.25 to 1.5 qts. Thank you for watching and supporting the channel!
@@JohnsonsSmallEngines The owner of this lawn tractor Poulan pro 42 INCH CUT LEFT HIS KEY ON AND THAT energized the little solenoid, causing the crank case to fill up with gas, i installed a shut off valve. I realize he still has issues in the carb, but he just bought it only cut with it once and left the key on when he parked it. He's been my neighbor and friend for thirty years i just charged him for oil, guessing his next move and sure enough he offered me for free, his old tractor , 17 .5 hp brigg's with two flats and dead battery ,believe it or not it started right up, after sitting exposed in Florida weather for a year. His neighbor noticed me test driving it on the road in front of our homes came by offered me three hundred and i said well don't really need to sell but since you are a neighbor i guess i could SOLD ,good news is i will in the future make more money from that tractor as more years go by thanks to ethanol. Funny thing it makes no difference how many times you tell them stop leaving gasoline in the engine when you park it for more than 2 weeks, the same folks over and over again so many times i just buy the carb for their needs a head of the repair, i think i might invest in a sonic cleaner they seem to work pretty good from what i have seen on the internet. Competition to sell after market partslikecarb.is so cut throat it almost doesn't pay to clean the old one. My dad had a small engine repair shop that he worked himself evenings and weekends and still worked his gov. job fulltime on base, i share his love he always had for these small engines, he's gone now but his love is carried on through me and i am almost 64 next month, seems like i was 30 something yesterday. Well thank for listening to me rant on about nothing important, Guess how many brought their generators tome after we lost power for a week,43,got to be a record and all had the same issues, ethanol my new best friend. I finished the last one one hour before the power got cut back on.
👍🏾
there also is a 12 volt operated inline shutoff valve available . around $20 , last i checked .
TY
Hi Robert. your welcome :)
I’m sorry about your hand, I just loose the tip of my right middle finger and is not the same anymore.
No worries, I was born that way and i do not know any different. Sorry you lost your tip.
Too bad nobody likes your vid. LMAO . Excellent ! Impressive dexterity with one hand . Keep on helping us morons out here please !
Hello, I replaced the carburetor and changed the oil. After doing so the engine will start up, but only last about a minute. It sounds like it runs out of gas when it dies. I checked all fuel lines and gas cap but for some reason it keeps dying. When I check the oil it definitely still has gas in it. Do you mind helping me with this?
Almost impossible to diagnose. When home not in front of the machine but I can say you must make sure you’re getting good flow of fuel from the gas tank to the carburetor so I would check that. Also, if you have a electronic fuel shut off solenoid, I would make sure that that is working. Not sure how good the carburetor is that you bought if it is OEM or not original equipment manufacturer? Or I would definitely change the oil again until you know there is no fuel in it.
@@JohnsonsSmallEngines Okay, thank you for the fast response. I realize it's not very helpful to not include what the engine is lol. It's a troy bilt pony, with a Briggs & Stratton 17.5hp. I am very new to working on engines so your help is very much appreciated. I seem to have good flow. I thought maybe the cap wasn't letting air in and creating negative pressure, but even with it all the way unscrewed, it has the same issue. The carb I replaced was leaking gas out of the breather tube, after replacing it, the tank holds gas without having to use the shut off. The replacement was off Amazon. I will change the oil again.
@@JohnsonsSmallEngines For a more concise explanation - The carburetor was leaking gas from the breather tube, and the oil had gas in it. So I replaced the carb and oil. Now the gas stays in the tank. However, when I start the engine. It runs for about a minute, then it slowly putters out. Almost like it's out of gas. If I wait about 30 seconds, it will start up and do the same thing again. - Extra info, when the engine is started in choke, it puffs black smoke with each stroke. -
Does it have a fuel shut off solenoid underneath the carburetor? If it does? Check to make sure it’s working. You may also have a bad new carburetor. Again this is all I can help you with without being there.
@@JohnsonsSmallEngines It does have a solenoid underneath. I am hearing a click when I turn the key, and the wiring all looks normal.