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2 stroke  engine 4 your information

Understanding the Cycle ­ I­f you read How Two-stroke Engines Work , you learned that one big difference between two-stroke and four-stroke engines is the amount of power the engine can produce. The spark plug fires twice as often in a two-stroke engine -- once per every revolution of the crankshaft, versus once for every two revolutions in a four-stroke engine. This means that a two-stroke engine has the potential to produce twice as much power as a four-stroke engine of the same size. The two-stroke engine article also explains that the gasoline engine cycle , where gas and air are mixed and compressed together, is not really a perfect match for the two-stroke approach. The problem is that some unburned fuel leaks out each time the cylinder is recharged with the air-fuel mixture. (See How Two-stroke Engines Work for details.) It turns out that the diesel approach, which compresses only air and then injects the fuel directly into the compressed air, is a much better mat