When riding a motorcycle, what effect do you obtain from engine braking?

Engine braking is the phenomenon of reducing a motorcycle's speed through the internal resistance of the power unit. For this to be possible, the engine must remain connected to the drive wheel, which means that the clutch lever must not be depressed, as its use disengages the drive. Reducing the throttle opening (closing the throttle) without depressing the clutch causes the motorcycle's momentum to drive the engine, rather than the other way around, which effectively slows it down.