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Which one is more efficient? A four stroke engine or a two
stroke and why?

Answer Posted / raja irfan

the efficiency of engine is calculated by revolution of crankshaft or flywheel. In 4 stroke engine crankshaft revolves twice(720 degree)in 1 complete cycle and in 2 stroke crankshaft revolves once (360 degree)in 1 complete cycle. thus a 4 stroke engine is more efficient than 2 stroke engine.

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