In a single-cylinder engine, the piston moves up and down once for every revolution of the crankshaft. This creates a jerky motion, which can be uncomfortable for passengers and can also cause damage to the engine. In a multi-cylinder engine, the pistons are arranged so that they fire at different times, which helps to smooth out the power delivery.
Multiple cylinders provide greater power and efficiency.
A single-cylinder engine can only produce a limited amount of power, because it is limited by the size of the cylinder. A multi-cylinder engine can produce more power, because it has multiple cylinders that are working together. This also makes multi-cylinder engines more efficient, because they can use the energy from the fuel more effectively.
Multiple cylinders provide better reliability.
A single-cylinder engine is more likely to break down, because it is under more stress than a multi-cylinder engine. A multi-cylinder engine is less likely to break down, because the load is distributed across multiple cylinders.
Multiple cylinders are more compact and lightweight.
A multi-cylinder engine is more compact and lightweight than a single-cylinder engine, because it can use smaller cylinders. This makes multi-cylinder engines more suitable for use in vehicles where space is limited, such as cars and motorcycles.
Overall, multi-cylinder engines are better than single-cylinder engines in every way. They provide smoother power delivery, greater power and efficiency, better reliability, and are more compact and lightweight.