Are you allowed to move away from the parked motorcycle, if the engine is running?

In the photo you can see the handlebars and dials of a motorcycle standing on paving stones: the rev counter shows that the engine is running, and the speedometer shows zero - the motorcycle is stationary with the engine on. While parked, you are not allowed to walk away from the motorcycle if the engine is running. The answer is: no.

The Road Traffic Act directly prohibits the driver from walking away from the vehicle when the engine is running. The reason is simple: a running motorcycle left unattended can move off at any moment - it is enough for a stranger to put it in gear and release the clutch, or for a child to touch the throttle grip. On top of that there is the noise and exhaust fumes with which you pollute the surroundings for no reason, and an invitation to a thief, who does not even have to start the engine. The Act also requires the driver, while parked, to protect the vehicle against being started by an unauthorised person - with the engine running, this is impossible. Before you walk away, even for a moment, you switch off the engine, take out the key and lock the handlebars.

Legal basis: Art. 60 para. 2 point 1 and Art. 46 para. 5 of the Road Traffic Act (Prawo o ruchu drogowym)