Replacing the Carburetor on a Lawn Mower



This video from Sears PartsDirect shows how to replace a carburetor on a lawn mower. Located on the side of the engine block, the carburetor mixes air with fuel to form a combustible mixture that enters the cylinder and ignites to drive the piston. The engine won’t start or won’t run smoothly if the carburetor gets clogged or damaged. If the carburetor is defective, replace it using the steps in this video.

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The video includes these parts. Look up your model to make sure you get the right parts for your lawn mower.
Carburetor
https://www.searspartsdirect.com/part-number/592361/0071/500.html?sid=soc:youtube:direct-part-link

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Transcript:
Located on the side of the engine block, the carburetor mixes air with fuel to form a combustible mixture that enters the cylinder and ignites to drive the piston. The engine won’t start or won’t run smoothly if the carburetor gets clogged or damaged. If the carburetor is defective, replace it using the steps in this video. Let the engine cool. Move the mower to a well-ventilated workspace. Wear work gloves to protect your hands. Wear safety goggles to protect your eyes. Now, let’s get started. Disconnect the spark plug wire from the spark plug. Release the catch and pull the air filter cover off. Remove the air filter. Remove the screws from the air filter base. Release the breather tube and pull off the air filter base. Place a shop rag under the fuel tank to catch spills. Place a fuel-safe container under the gas line connection to the fuel tank. Release the spring clamp and disconnect the fuel line from the gas tank. Drain the gasoline into the container. Wipe up any spills. Release the starter rope from the mower handle. Remove the screws from the blower housing. Pull the blower housing off the engine. Separate the bracket arms to release the carburetor and disconnect it from the carburetor adapter. Holding the carburetor above the bracket, disconnect the governor and choke linkage rods and remove the carburetor. Release the fuel line spring clamp and pull the fuel line off the carburetor. Push the O-ring into the outlet port of the new carburetor. Install the retainer on top of the O-ring. Connect the fuel line to the new carburetor and secure it with the spring clamp. Hold the carburetor over the mounting bracket and connect the governor and choke linkage rods. Push the carburetor onto the bracket arms and push the outlet port fully onto the carburetor adapter. Push the new air cleaner gasket into the channel on the carburetor inlet. Position the blower housing on the top of the engine and line up the mounting holes. Reinstall the blower housing mounting screws. Reconnect the starter rope to the mower handle. Position the air filter base on the front of the carburetor and reconnect the breather tube. Secure the air filter base with the mounting screws. Reinstall the air filter. Position the air filter cover on the front of the base and snap it into place. Push the fuel line onto the tank fitting and secure it with the spring clamp. Reconnect the spark plug wire to the spark plug.

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2 thoughts on “Replacing the Carburetor on a Lawn Mower

  1. Thank you! Your video/instructions are straightforward, to the point, and exactly what I needed to see to be able to do this. Thank you so much!

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