The piston fits into the cylinders and is connected to the crankshaft. When a spark plug fires, it ignites the air/fuel mixture in the cylinder, pushing the piston down which then turns the crankshaft. This is how an engine makes its power.
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The piston fits into the cylinders and is connected to the crankshaft. When a spark plug fires, it ignites the air/fuel mixture in the cylinder, pushing the piston down which then turns the crankshaft. This is how an engine makes its power.