Respuesta :

Answer: Piston.

Crankshaft.

Camshaft.

Spark plug.

Cylinder.

Valves.

Carburetor.

Flywheel.

Explanation: What Are the Strokes of a 4-Cycle Engine? At the end of the compression (previous) stroke, the spark plug fires and ignites the compressed air/fuel mixture. This ignition/explosion forces the piston back down the cylinder bore and rotates the crankshaft, propelling the vehicle forward.