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Why wont your Briggs and Stratton 4 point 5 hp mower engine not start after removing reinstalling flywheel cover?

1. Incorrect Flywheel Cover Installation

Ensure that the flywheel cover is correctly reinstalled and securely fastened. Misalignment or improper installation can interfere with the engine's ability to start. Check that the flywheel cover is properly seated and that all screws or bolts are tightened.

2. Loose or Disconnected Wires

When removing and reinstalling the flywheel cover, you may have inadvertently loosened or disconnected wires. Check all wiring connections, particularly those related to the ignition system, to ensure they are secure and properly connected.

3. Spark Plug Issues

Removing the flywheel cover may have affected the spark plug or its connection. Inspect the spark plug to ensure it is properly seated and gapped correctly. Clean the spark plug or consider replacing it if necessary. Make sure the spark plug wire is securely attached.

4. Fuel Issues

Check the fuel supply to ensure the engine is receiving adequate fuel. Verify that the fuel tank is not empty and the fuel line is not kinked or obstructed. Also, inspect the carburetor to ensure it is clean and properly adjusted.

5. Choke/Throttle Position

Check the position of the choke and throttle levers. If the choke is not engaged or the throttle is set too low, the engine may have difficulty starting. Make sure the choke is set in the correct position for starting and that the throttle is set appropriately.

6. Faulty Starter Components

The starter may have been damaged during the removal and reinstallation of the flywheel cover. Check the starter components, including the recoil starter or electric starter (if applicable), to ensure they are properly functional. Verify that the pull cord is in good condition and retracts easily.

If you've checked all of these aspects and the engine still doesn't start, consider seeking advice from a professional mechanic or consulting the specific manuals and recommendations for your Briggs and Stratton engine model.