Are there any efficient 2 stroke engines?



  1. 0 Votes

    In general two stroke engines are far less efficient than a four stroke engine in regards to fuel usage and pollution control.  With a two stroke engine, more fumes are released on the secondary upstroke when compared to a four stroke engine.  This is more a function of the design of the engine, and a more efficient 2 stroke engine would just be a 3 or 4 stroke engine.

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