Stroke, Glossary and Terms, Automotive, Motorcycle, Boat Dealers

U.S Auto, Moto, Boat Dealers List of United States Automotive, Motorcycle, Boat, Dealers, Service Stations

"Stroke"

The up-and-down distance the piston travels within the cylinder. On a traditional internal combustion engine, the piston makes four strokes during the combustion cycle, only one of which is a power stroke. On the power stroke, the piston is near the top of the cylinder, and it has compressed the air and fuel mixture. The spark plug ignites the mixture, and the force of the explosion pushes the piston down into the cylinder, producing the force that turns the crankshaft. The piston returns to the top of the cylinder to expel the exhaust gases on the second, or exhaust, stroke. It slides down to

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