Briggs & Stratton 42587x50B Parts Manual

Ensure the transmission is in neutral, engage the parking brake, pull the choke, turn the key to the start position, and then release the key once the engine starts.
Check the fuel level, inspect the spark plug for cleanliness and wear, ensure the battery is charged, and verify that the safety switches are functioning correctly.
Change the oil after every 50 hours of use or at the beginning of each mowing season, whichever comes first.
Use SAE 30 oil for warmer temperatures above 40°F and 10W-30 for varying temperature ranges.
Regularly sharpen the blades, ensure the deck is clean from debris, and adjust the cutting height as needed for optimal performance.
Check for debris blocking the air intake or cooling fins, ensure proper oil level, and inspect the air filter for blockages.
Keep the battery terminals clean and tight, charge the battery regularly if the tractor is not used frequently, and store in a cool, dry place during the off-season.
Difficulty starting the engine, poor engine performance, and increased fuel consumption are signs that the spark plug may need replacement.
Check the tire pressure, ensure the blades are sharp and balanced, and adjust the mower deck leveling.
Clean the tractor thoroughly, change the oil, remove the battery and store it in a warm place, and cover the tractor to protect it from dust and moisture.