To clean the lawn mower, you will need to:
1. Drain the gas tank. Disconnect the fuel line from the carburetor and empty the gas tank into a suitable container.
2. Remove the spark plug. To prevent the engine from starting accidentally, remove the spark plug and reconnect the fuel line.
3. Add a small amount of oil to the gas tank. Pour about a cup of oil into the gas tank and shake it around to mix the oil and gas together.
4. Replace the gas cap and start the engine. Let the engine run for a few minutes to allow the oil to circulate throughout the engine.
5. Turn off the engine and allow it to cool down. Once the engine has cooled down, drain the oil and gas mixture from the engine by removing the oil drain plug or using a suction device.
6. Replace the oil and gas cap and reinstall the spark plug. Make sure to add the correct amount of oil according to the owner's manual for the lawn mower.
7. Operate the lawnmower for a short test run. If the engine runs smoothly and does not produce any unusual noises, it is safe to use.
Remember to follow the safety guidelines and instructions specified by the manufacturer while performing this task.
