How To Service A Lawn Mower Carburetor

Download Article

Have you noticed your backyard mower engine having problem starting, stalling, running rough, or producing blackness fume while in use? A dirty carburetor is the probable culprit—but luckily, a quick clean can set up the result straight away. By removing the carburetor from your mower for a clean, you tin normally do a more than thorough job. But if the idea of taking apart and reassembling your mower feels intimidating, don't worry, we'll also prove you how to make clean your carburetor without removing information technology. Nosotros're walking you through both processes step by step—so in that location's no need to stress. To learn how you tin clean your dirty lawn mower carburetor, read on!

1
Plow off your mower and requite it time to cool downwards. If y'all've used information technology recently, the inside of your lawn mower could be extremely hot to the touch. To avert risking a burn down, turn your lawn mower off and wait until it's cooled before getting started.^[1]
- Whether you have a push mower or a cocky-propelled mower, a dirty carburetor tin cause a lot of issues. Fortunately, the cleaning process is the same.
2

Prepare upwardly in an area with good ventilation. Your lawn mower'southward erstwhile oil can be toxic to inhale, and then open up all of your doors and windows in your workspace. To increase ventilation, gear up up a garage fan or ii equally well.^[ii]

Advertising
3
Clamp the fuel line with a vice clamp or plow the shut-off valve. Typically, the fuel line will exist a black, prophylactic cord running from under your gas tank into your carburetor. Gas runs from the fuel line into the carburetor, so to continue from making a huge mess—stop the catamenia of glass. If your fuel line has a shut-off value, only turn it. Or, use a vice grip to clamp the fuel line.^[3]
- Annotation that in that location will already be a piffling gas in the fuel line, and so you'll need to take hold of some gas drips. Lay out a rag or a bowl that you don't heed getting dirty under the line.
four

Detach the throttle cable with needlenose pliers. First, locate your throttle cablevision—typically this will be a long, black cord fastened to the carburetor. Adjacent, using a pair of needlenose pliers, carefully wiggle this cord out of its position to remove information technology.^[4]
5

Remove your air filter with a screwdriver and make clean it with a rag. Discover your air filter almost the tiptop or side of the engine. So, remove the outer casing, usually by unscrewing four screws belongings it in place using a screwdriver. And then, pull your air filter from its housing. Using a rag or a vacuum cleaner, lift as much dirt and debris from the air filter as possible.^[five]
half-dozen

Remove the carburetor. Behind your air filter, y'all'll see a small, metal piece with a pigsty in the center and a bowl fastened below it. This is the carburetor. You might exist able remove it by merely sliding your carburetor off of its mounting bolts. Otherwise, unscrew the screws belongings information technology in place. More than remaining gas may spill out at this point, so have a rag or basin placed underneath you lot while you remove it.^[6]
7

Unbolt the carburetor basin and clean the nut with carb cleaner and a wire brush. Typically, just one nut volition agree your basin in place. Unscrew this and clean the commodities thoroughly with carburetor cleaner and a brush, removing all gunk and debris. Information technology'south likewise extremely important to employ a paper clip to clean out the pigsty establish halfway down the side of the bolt. If grass of dirt gets stuck here, it could cause the entire carburetor to end working.^[7]
8
Remove the bowl and make clean it with carburetor cleaner. Now that yous've unscrewed the one screw holding your basin in place, remove it from its position. Thoroughly scrub the inside and outside of your bowl with carburetor cleaner. If the carburetor is too muddied to be cleaned by hand, consider replacing your bowl.^[8]
- Finally, inspect the gasket paired with your lawn mower bowl. It might be corroded or broken—in that case, replace it. If it'south a picayune dirty but can exist cleaned, utilize a rag to remove debris.
9
Clean your carburetor with carburetor cleaner. With your carburetor now fully removed, make clean out small crevices and the exterior of the carburetor, removing equally much grass and muck as possible. To get off stubborn clay and debris, use a wire castor.^[ix]
- If you notice signs of rust on your carburetor, use sandpaper to remove it.
- Let your carburetor dry out fully before reinstalling information technology in your machine.
10
Reinstall the carburetor, the air filter, and the throttle cable. Now that you lot've deep-cleaned your carburetor, resituate all of your pieces in their correct position. Outset, slide the carburetor dorsum on its mounting bolts. Position the bowl and fasten the bolt that holds it in place.^[10]
- Place the air filter and screw on its outer comprehend.
- Reattach the throttle cable.
- Turn the fuel line'southward close-off valve or remove its clamp.

Advertizing

one
Turn off your mower. Before you lot begin working, double-check that your lawn mower is turned off. If you've used your mower recently, allow your hot engine time to absurd down to avert dangerous burns.^[xi]
- Whether you have a push mower or a self-propelled mower, y'all tin can follow the same cleaning instructions to clean your carburetor.
2

Unscrew your air filter with a screwdriver and make clean your air filter with a rag. Kickoff, find your air filter (usually near the top or side of the engine). Next, take off the air filter's outer case by removing the snaps or unscrewing the screws holding it in place. So, if your air filter itself is removable, pull it from its housing. Using a rag or a vacuum cleaner, remove the dust and debris from your air filter.^[12]
iii

Turn the engine on and spray your aerosol spray onto the carburetor. In one case you lot've turned on your mower, spray the aerosol liquid in the middle of carburetor for 10-xv pulses. Then, end spraying and let the mower sit down, all the same turned on, for a infinitesimal. Finally, identify the carburetor'south pharynx and at present, spray the aerosol onto this part of the auto as well.^[13]
four

Clean remaining dirt with a clammy rag. Side by side, inspect your carburetor. Did y'all go everything, or do you still spy leftover moss, grass, or grime? Scrub these bits away using a damp rag. Accept care not to apply a dripping rag—equally this could cause your mower to rust.^[14]
five

Render your air filter and casing to its original position. Typically, this will mean sliding the air filter back into its housing. Then, screw on the bolt or bolts that concur it in position.^[xv]

Advert

Ask a Question

200 characters left

Include your email address to go a message when this question is answered.

Submit

Thank you for submitting a tip for review!

Thing You'll Demand

Vice grip
Needlenose pliers
Rag
Screwdriver
Wire brush
Carburetor cleaner

Rag
Screwdriver
Sandpaper
Wire brush
Droplets spray

About This Article

Thanks to all authors for creating a page that has been read 1,424 times.

If y'all purchase through links on our site, we may earn a commission.

Did this article help y'all?