Difference between 2 and 4 stroke engine with mechanism

Question

Accepted Answer

2-stroke engines have simpler design and are lighter, while 4-stroke engines are more efficient and have lower emissions.

2-stroke engines complete a power cycle in one revolution of the crankshaft, while 4-stroke engines complete it in two.
2-stroke engines have no valves, instead, the intake and exhaust ports are opened and closed by the piston movement.
4-stroke engines have separate intake, compression, combustion, and exhaust strokes.
2-stroke engines have a higher power-to-weight ratio, making them suitable for small applications like chainsaws and mopeds.
4-stroke engines are more fuel-efficient and produce less pollution, making them suitable for larger applications like cars and boats.

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