A lawn mower is composed of the wheels, blades, and a handle. Some types include one kind of engine, and only certain models feature steering wheels. Before purchasing any lawn mower, you must know basic facts about the machine.

Lawn Mower Engine

An engine’s ability to rotate the blade found on a rotary mower originates from the piston’s movement. The piston is, in turn, driven by a measured blast of gas or an engine within the combustion chamber.

The combustion chamber features an exhaust port and an intake port. The gas and air flow through the intake port over the course of the downward stroke coming from the piston. The gas and air mixture flares up above the upward stroke.

Meanwhile in a four-stroke engine, the piston accomplishes the two upward and downward sequences for each rotation of the crankshaft, which, in turn, rotates the blade. In a two-stroke engine, every up and down sequence of the piston generates the shift to spin around.

How a Carburetor Works

The carburetor offers an appropriate fusion of air and gas to the combustion chamber for two-stroke and four-stroke engines. If the fusion is too thin (meaning there is an excess of air), the gas ignites hotly, which makes for a weak engine.

If the fusion is excessive, the gas may not explode, and if it does explode, it might burn inadequately and churn out smoke which makes for a weak performance from the engine. Carburetors feature adjustment screws so you can modify the mixture of gas and air.

Ignition System

One of the most important parts of an engine is its flywheel since it is attached to its crankshaft and rotates when the piston kicks into gear. You crank out the mower by rotating the flywheel with an electric starter or a manual one.

Once the flywheel does its work, it produces a recurring electric current that ignites the spark plug, which then flares up the gas found in the combustion chamber.

As soon as there is sufficient energy collected to begin the cycle, it persists independently until the user halts the operation. To guarantee that the engine will keep working, make sure that you check the spark plug and replace it if need be.


Lubrication oil is important to every internal combustion engine, and lack of it will produce overheating on a machine’s metal components. Mowers with two-stroke engines require that the oil should be added directly to the gas, which then ignites in the combustion chamber.

Four-stroke models require that the oil be added individually since it is deposited in the crankcase where it is distributed by the pump all over the engine.

If, for example, your mower does not feature an oil port, remember to mix the oil with the gas that strictly adheres to manufacturer’s instructions.

Importance of Lawns

The US reportedly has millions of lawns at this time. Well-tended lawns are an important facet of American life. Not only in the U.S. but all over the world.

Caring for the lawn shows that you value the environment that you live in and with such responsibilities springs good values, a greater sense of duty and an overall healthy lawn.

The grass in your lawn provides a wonderful padding to bare feet. It is also an ideal place for young children to play and for families and friends to go and have parties and picnics.

Other than that, healthy, nutrient-rich grass benefits the quality of air around us for it provides a good supply of oxygen.

Some researchers have even reported that the lawn ecosystem serves an important purpose in the majority of suburban regions; it acts as a filter to the areas’ air and noise pollution.

Bigger lawns often revitalize and enhance the fortification of groundwater and help control floods. Thus, do research for the best riding lawn mower you can purchase, and you will be able to maintain your lawn’s health.

Lawns also take in and separate carbon dioxide gasses, which makes for a balanced, safe environment.

These reasons and a lot more are enough to encourage everyone to take care of his or her lawn.

Leave a Comment

Your email address will not be published. Required fields are marked *