A four-stroke engine has a piston that goes through four strokes or two crankshaft revolutions to complete one full cycle. Four-stroke cycle used in gasoline/petrol engines: intake (1), compression (2), power (3), and exhaust (4).
The intake, compression, power and exhaust stroke. This means that when the piston moves down from the top of the cylinder to the bottom, it reduces the pressure inside the cylinder.
In this video, we explain the working of a four stroke motorcycle with relevant animations. Each part that makes a motorcycle work the way they do is explained in this video in detail.
A 4-stroke motorcycle has a more compact and complex design that relies on the same oil to lubricate the engine, clutch and gearbox.Cylinder head design has a significant effect on the efficiency of combustion, and hence the power output of the engine. The head may be flat, in which case the combustion chamber resides within the cylinder and/or a depression in the piston crown, but usually a “dome” within the cylinder head provides most of the combustion volume.