How to Rebuild a Briggs and Stratton Quantum Engine Carburetor
ID: 142024
Description: This guide shows how to rebuild a primer style...
Steps:
- The air filter and its cover are located to the right of the yellow warning label under the throttle cable.
- Remove the single screw attaching the cover and filter using a 5/16'' socket.
- Pull straight outward until the filter assembly is detached.
- The screw is a flat head as well as a 5/16'' socket.
- The throttle cable will be located above the air filter assembly.
- Use a flathead screwdriver to remove the throttle cable.
- If your engine is not equipped with a throttle, skip this step.
- Remove the backplate of the air filter assembly to access the carburetor.
- Using a 5/16" socket, remove the three screws inside of the assembly.
- Remove the fuel line spring clamp with pliers.
- Remove the fuel line from the carburetor by pulling directly outward.
- Crimp the line with locking pliers. Do this before removing the fuel line to mitigate fuel spillage.
- Drain the fuel line into a container and dispose of it properly.
- To remove the carburetor, use a 3/8" socket with an extension and ratchet to remove the two screws attached to the engine block.
- Turn the carb 90 degrees, and pull off of the Z bend in the carb linkage.
- Remove the carburetor bowl screw with a 1/2" socket and ratchet.
- Empty fuel from the carburetor bowl into a container for disposal.
- Spray the interior of the carburetor with carb cleaner.
- Remove the float pin.
- This will allow the float and needle to be removed as one piece.
- This is not a full carburetor cleaning. This is just a rinse-off.
- Spray out the three major spots in the following order: the main adjustment hole, the inlet needle hole, and the main jet.
- If the carb cleaner does not pass through any component, use a small piece of wire to poke through the passage.
- If using a needle to clear passages, spray the passages with carb cleaner after clearing.
- After all parts are clean, lay them out to prepare for reassembly.
