The lawn mower features a four-stroke gasoline engine that rotates the cutting blades. A significant advantage over other engines is the increased power and torque for many hours of work on large areas. Inevitably, this type of engine has some disadvantages such as noisy operation, exhaust emissions, and high cost of use and maintenance.

What is a four-stroke engine and what are its advantages/disadvantages in a lawn mower?

It is an internal combustion engine that operates with a circulation of oil and air in four operating cycles.

Advantages:

• Lawn mowers with four-stroke engines do not require additional oil.
• They consume fuel only once every four strokes, making them a more economical choice.
• They are built to withstand more wear and tear.
• They produce less noise and vibration during operation.
• They are less polluting because they do not require mixing oils or lubricants with the fuel.

Disadvantages:

• Because lawn mowers with four-stroke engines have more components and valves, their repairs and maintenance are more expensive.
• Since they derive their power only as the piston rotates every four strokes, this design is less powerful than a similar two-stroke engine.

Before you start using the mower, ensure that your garden is free of stones, branches, and other objects that can cause damage to the machine or the blade.

Adjust the cutting height to the desired setting for your garden. Choose the lowest setting if you want to cut your lawn short, and the highest setting if you want to leave your lawn longer.

Try not to cut very tall grass in one go. It is better to cut the grass in two or three passes.

According to users, the machine takes 30-weight oil for a four-stroke engine.