How to Clean a 4-Cycle Engine Carburetor

[@MrBbb2224]

Very clear, crisp, and precise video. Nice pace with the presentation. Please bring us more videos this helpful.

[@johnklug3723]

Nice, great video! I went to clean the carburetor of my lawnmower & my friend informed me that what I was looking at was the "gas tank"... i told him he was wrong, but he pointed out that i wasn't even looking at a 4-stroke engine. In fact, what i was looking at was a golf club. After I came down from the mushrooms i just ended up buying a new carburetor, but i didn't really feel like mowing the lawn anymore. Thank u for the video though.

[@67jrobert]

This is a great video you have contributed to us all! I greatly appreciate your generosity in sharing this free video to us!

[@toreyhoeck5087]

You cleaned the carburetor, and the bowl. The bolt that holds the bowl on needs to have gas flow through it (you can see the three holes in it) which is typically the problem from sitting engines. Cleaning this bolt is just as important as cleaning any other part.

[@seaserpant4256]

Thanks for the video. Got a tiller that won't keep running and have replaced air filter and spark plug. It has been sitting up for over a year with fuel in it. Hopefully I can get this done. Thanks again.

[@richnormal3902]

That was very helpful, thank you!

[@FIXTechGuides]

@memberson Good question. You should not have to remove the jets themselves in order to clean your carburetors with the carburetor cleaning method. Thoroughly spraying the cleaner in each passage should be enough to get the inside of the carb clean. Good luck with your repair and thanks for watching!

[@jbible]

This video really helped me today! THANK YOU! inspired me to clean the carb enough to fix a 22hp mower engine.

[@henryazuma9298]

Thank you for a good video of how to do it.

[@Kevinme72]

Thanks for the info. I am looking forward to working on mine in the morning.

[@DavidTermini]

Very well done video and help me a lot thank you very much for your time

[@reaper69316]

Thanks that got mine started right up. Much obliged

[@patrickmchugh5763]

Very good. Really helped

[@pablosales187]

Helpful video. Thanks

[@rebeccal5370]

I want to use the ultrasonic cleaner to clean 2&4 stroke carburetors what do you use in the solution and how much do I mix and how long do I run the cleaner? I am looking to purchase a cleaner similar to the one you have. any info will be a great help thank you

[@patagualian]

Good straight-forward Video. Thanks. But you failed to mention that the "nut" that holds the bowl to the carb is actually a jet in itself.....Equally important to clean this particular jet as well as the other passageways within the carb body. Just a point.

[@marccharleston2523]

Hi i would like to know if you have a video showing how to clean a 2 cycle carburetor? Thanks, looking forward to your answer.

[@glenm5034]

Mark, Thanks for another excellent video presentation. Not being mechanically inclined want to know what is difference between 2 cycle vs 4 cycle engine, besides the additional 2 cycles of the 4 cycle engine. Surmise this is important when buying the motor oil.

[@jimmetcalf9698]

I havent seen you talk about the needle & seat replacement on the carbs

[@artmakersworlds]

What about the gaskets? Looks like one side was removed? The other not? Does that hold up in the cleaner? Also you mentioned detergent. What kind and what amount?

[@THEMOWERMEDIC1]

yup!

[@steveplotner5558]

Mark: Thanks for the video. I have totally cleaned my carburetor and replaced the fuel with 93 octane. The problem that persists is that my lawnmower (John Deere JS63) will start with lots of priming but it immediately dies. It acts like it is starving for fuel but there is fuel in the bowl. Any ideas?

[@EduardoMartinez-gr8tt]

awesome vid

[@TylerDobbsWoodworks]

Is there any way you can tell me how much detergent you use for this? And what kind?

[@BigDogsHunt100]

1) Nitrile gloves. Your hands are looking pink! 2) nice video. thanks for posting! :)

[@FIXTechGuides]

BigDogsHunt100 Good call on the gloves!

[@kingjed9697]

what is the name of the bomb (spray) that you use to clean the carb please

[@phneud]

Stopped cutting my grass last week. Today, my tank was empty when I went to cut again. It seems my problem is the gas runs thru the carburetor and fills up the cylinder. The float looked good but we could not get the pin out to check the needle valve. Sprayed what I could clean and re-assembled only to have the carburetor fill up the cylinder again. Help.

[@FIXTechGuides]

Carb cleaner should work great. -Mark

[@butzbach1]

EXCELLENT

[@RejectedManiac]

I can't even find the carborator on mine..

[@horseandcart5978]

I tried sticking thin wire into the holes. What are the chances of it still working?

[@kuiperroerdink1670]

will a toothbrush damage the carb

[@ocrfamily]

Could I use boiling hot water

[@walterrosevally1990]

I cleaned the carburetor ,it turns over ,I just dont feel compression

[@fred306801]

This is B.S. IF you have a carb. and it is gummed up with varnish. Which is what happens to them if they have set for a awhile. The carb. cleaner is not going to help. You are wasting your time and money. The Best way I have found is to take it to a mower shop and let them soak it in a vat. They have a special cleaner and when they are done it looks almost new. . This way you do not have to deal with the chemicals. And when it is done they can tell you if you need a new kit. Last time I had one cleaned it was $30 Plus the carb. Kit. Some say vinegar works. But I have not had much luck with it.

[@SS-sh6ww]

No Jets ??

[@reggieb9509]

man why dont you show how to remove the pins? dont understand why not!

[@Aikaramba12]

So you reccomend us to quickly Get it on while there's water in it? Not a smart idea sir!!

[@patriciavittner2362]

use a fuel filter!!!!!! that wont get all that debris in the carb.

[@reyem1O]

...oh! "i was sure it is a bolt that holds the bowl on and not a nut!"

[@WayToManyAssassins]

That looks like a very old carburetor.

[@hernandezr2216]

After taking the carburetor apart can you just boil it on the stove with just water if you don't have an ultrasonic cleaner?

[@FIXTechGuides]

The problem will be with the metering needle. The ethanol that is in our gasoline now tends to corrode older carburetors that were not designed for ethanol. The corrosion holds the needle open which allows the fuel to flow right through the carb. A good cleaning will fix it for a while. Problem is the ethanol will begin to corrode the carb again. It seems that yearly carb cleaning is going to be the norm for older carbs as long as the ethanol is in our fuel. -Mark

[@FIXTechGuides]

@acscolo We used a common, water-based cleaning detergent for our cleaning solution in this video. Other detergents, like Simple Green and dish soap seem to work well for carburetors as well. Each ultrasonic cleaner manufacturer seems to have its own branded cleaning solution as well. Thanks for watching!

[@acscolo]

What cleaning solution did you use in the ultra sonic cleaner?

[@duako1]

Hi thanks very much,You explained it really well

[@TheMoomba19]

The "bolt" that holds the bowl on to the carb, is that also some type of a jet? It appears to have holes drilled in the stem.

[@FIXTechGuides]

Hi Mark, in some carburetors the screw that holds the float bowl on, is the main jet if it has the holes in it. If it does not have any holes, it is just a screw holding the float bowl on.

[@Richard857]

My Lawn Boy mower with a 4 1/2 Tecumseh motor is leaking gas out the air intake on the carb. How come?

[@masonmeek684]

Richard857 yeah my 8hp Briggs does that

[@MrSkegman]

what bad information this is.modern carburetors are quite different than in years past.ultra sonic cleaners is what's needed.this chap has no clue.