Lawn Mower Repair : How to Clean the Carburetor on a Lawn Mower

hi I'm Marc Bouwer at Bauer small injury

repair and I'm going to show you how to

clean a lawnmower carburetor I'm going

to remove the fuel tank on this model

you simply slide it up there's little

tabs on the engine that hold the tank in

place you want to take off the clamp

it's this particular clamp typically

will break which this one did so you

want to just take pair of pliers slide

take it off you can take a pair of

needle nose pliers and slide it behind

the fuel line and that will enable you

to pry it up you don't if you try to

take it off by by squeezing the fuel

line you're just going to pinch it onto

the fitting here and you could damage

that fitting just simply take the

needlenose and pop that off you want to

take the gas that's in the tank and

dispose of it properly

chances either dirt came from the tank

so you don't want to reuse that fuel

that's in the tank the next thing you

want to do is you can get some

carburetor cleaner and just put a little

bit on a rag then you want to clean off

this bowl so you don't when you take the

bowl off you don't let dirt fall inside

the carburetor so you want to lay it a

rag down so you don't get gas everywhere

simply unscrew that jet that that's not

is also a main jet and this gas this gas

smells bad and has a yellowish color

it's it's it's stale so you just loosen

it up the ranch once you get it loose

enough with the wrench and you can grab

the grab it in unscrew it sometimes

takes two fingers

alright the most common failure is this

mitt this is the main jet main jet /

bull nut and what happens is it just

gets a little piece of debris in there

in the jet you can see that little green

piece of debris and then there's also a

piece of the old get the gasket that

little flake right there and you want to


clean that gasket off of there get all

the old gasket off just like that so you

want to make sure that's clean and the

way you can do that is just simply get a

piece of small wire and see you and you

poke it in and out of that hole make

sure that it's clean it's really it's

imperative that that hole is clean so

you'll run the wire through there you

can also run the wire through this hole

in the middle you want to go down the


just spray a little bit out on and on

the Jacke can just do that and if you

don't have carb cleaner you can just

make it really clean with just using a

brush the carburetor cleaners just helps

get a little bit more a little bit more

of it off there and you want to make

sure you have adequate ventilation I

have a fan going I have the window open

the the overhead garage doors open

this stuff is hazardous you don't want

to breathe that in once you're sure you

have that main jet clean and just set

that aside now we're going to take the

bowl off the carburetor the bowl is only

held on by that nut so we're going to

just take the bowl off sometimes they

get stuck on there on this one we're

going to replace the bowl we're not even

going to try to clean that

what I'm going to do now is make sure

that the float is moving freely and when

you bring it up it will have a distinct

click and that clicking sound tells me

that the needle is sealing on its seat

and that's a good thing that's what you

want so we're going to take the gasket

off and you just get a little

screwdriver in this case I'm using a

pick and this gasket is really bad so

I'm going to take this off here

I have compressed air so I'm going to

I'm going to blow it blow that off okay

this is a new bull Oh ring we're going

to put this on on the bull on the

carburetor you just get the back on

first and then work you'll figure out to

the front then just make sure that it's

all the way on so you put it on the back

first and then just simply slide your

fingers around and it will go up into

where it's supposed to be the bull has a

deep end to it

one end shallow one ends deep you want

to place that shallow end right where

the hinge pin is see just simply put the

bowl on there we'll pull that away and

now we're going to just get that back in

place now we're going to tighten our nut

and that's how you clean a carburetor on

a lawnmower