How to Rebuild a Carburetor

Things You’ll Need:
Carburetor kit
Safety mask
Safety glasses
Carburetor cleaner
Toothbrush

Step1
Purchase a carburetor rebuild kit from the
dealer. These kits will usually have all the parts
you'll need to rebuild a carburetor, including all
of the rubber parts and gaskets.

Step2
Prepare your place to work on rebuilding your
carburetor. This type of work produces a lot of
fumes. You'll want to make sure you have a place
with proper ventilation. A safety/vapor mask will
help prevent inhalation of fumes. Safety glasses
will keep dirt, grease and debris from flying in
your eyes as you clean carburetor parts with a
brush. Your work area needs to be clean and needs
good lighting. You'll be working with lots of
screws and tiny pieces.

Step3
Look carefully at the diagram that comes with
your carburetor kit. The kits will differ depending
on what kind of carburetor you are rebuilding.
Vehicle carburetors are more complex than a lawn
mower, of course. Get familiar with the parts your
kit contains. Your diagram will be helpful when
putting it all back together.

Step4
Start by disconnecting the accelerator pump.
Remove the cover. The choke linkages along with the
choke itself will need to be removed. Be especially
careful to note how the choke linkages fit together.
If you write down on paper telling yourself exactly
where each part goes as you proceed, it will make it
much easier when you put it all back together. Each
hose and screw will need to be replaced, so take
note where each one connects. Again, different
carburetor kits will vary in the exact numbers of
parts that they have.

Step5
Use your brush and can of carburetor spray
cleaner to clean each part. Some people use a wire
brush, but stiff wire can damage delicate parts if
you rub too hard. Toothbrushes work well for this
type of cleaning.

Step6
Finish by using your kit diagram and the notes
you took while taking the carburetor apart to put
it all back together. Make sure you tighten each
screw carefully. Don't tighten too much or you will
strip the threads. Check each part off your list as
you rebuild your carburetor. Retracing your steps
using the list you wrote will prevent you from
forgetting a connection.