Murray 40505x95A Parts Manual

To change the oil, first run the engine for a few minutes to warm it up. Turn off the engine and disconnect the spark plug wire. Position an oil pan under the oil drain valve, then open the valve to drain the old oil. Replace the oil filter, close the valve, and refill with the recommended oil.
Check the battery connections to ensure they are clean and tight. Verify that the fuel tank has gasoline and the fuel valve is open. Inspect the spark plug for wear or damage. If the engine still won't start, it may need professional servicing.
Sharpen the mower blades after every 25 hours of use or at least once per mowing season. Dull blades can tear grass, leading to a ragged lawn appearance and increased susceptibility to disease.
Use unleaded gasoline with a minimum octane rating of 87. Avoid using gasoline with more than 10% ethanol to prevent engine damage.
Locate the cutting height adjustment lever typically found on the mower deck. Shift the lever to the desired position to raise or lower the cutting height. Ensure the tractor is on a flat surface before adjusting.
Excessive vibration can be caused by unbalanced or damaged blades. Check the blades for damage or imbalance and replace or balance them as necessary. Also, inspect the drive belts and pulleys for wear.
Remove the air filter cover and take out the filter. If it's a paper filter, tap it gently to remove dirt. If it's a foam filter, wash it with mild detergent and water, then allow it to dry completely before reinstalling.
Check the transmission fluid level and top it up if necessary. Inspect the drive belt for wear and tension, and replace it if needed. If the problem persists, consult a professional technician.
Clean the tractor thoroughly, remove any debris, and perform all necessary maintenance. Drain the fuel or add a fuel stabilizer, disconnect the battery, and store it in a dry, sheltered area. Cover the tractor to protect it from dust and moisture.
Uneven cutting can be due to improperly balanced or damaged blades, incorrect tire pressure, or an unlevel mower deck. Check and correct these issues to ensure an even cut.