simple 2-stroke engine

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A 2-stroke engine is a type of internal combustion engine that completes its power cycle in just two strokes of the piston, as opposed to the four strokes required by a typical 4-stroke engine. This design leads to a more compact and lighter engine, as well as increased power output for a given displacement. However, it also requires frequent mixing of fuel and oil, and can produce higher levels of emissions and noise compared to 4-stroke engines.