Which is more efficient two stroke or four stroke engine

1.	Which is more efficient two stroke or four stroke engine
Answer» This fuel EFFICIENCY in 2 stroke ENGINE is LESS. But compared to mechanicalefficiency, a 2 stroke petrol engine had higher MECHANICAL efficiency because it gives a power stroke for one complete revolution of crankshaft, but the 4 stroke engine gives a power stroke for 2 complete rotations of crankshaft.

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Which is more efficient two stroke or four stroke engine

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