When a motorcycle is not being ridden and is idling or parked, it is generally recommended to let the engine run at its normal idle speed. The idle speed is the engine speed at which it operates when the throttle is closed and no additional load is applied.
The specific idle speed can vary depending on the make and model of the motorcycle. It is typically set by the manufacturer and can be found in the motorcycle's owner manual or service documentation. In most cases, idle speeds for motorcycles range between 1000 to 1500 RPM (Revolutions Per Minute).
Allowing the engine to idle at its designated speed provides a few benefits:
Proper Lubrication: The engine's oil pump operates effectively at idle, ensuring adequate lubrication to all moving parts, including the cylinder walls, pistons, and bearings.
Cooling: At idle, the engine generates less heat compared to higher RPMs, which allows the cooling system to dissipate the heat effectively.
Stable Operation: Running the engine at idle helps maintain a stable idle speed, ensuring a smooth and consistent operation when the motorcycle is started up again.
Electrical System Functionality: Idle speed is important for the proper functioning of the motorcycle's electrical system, as it ensures sufficient charging of the battery and operation of various electrical components.
It's worth noting that letting the engine idle for prolonged periods without any specific reason or need can be wasteful in terms of fuel consumption and emissions. If you anticipate the motorcycle will be parked for an extended duration (e.g., more than a few minutes), it is generally recommended to turn off the engine to conserve fuel and reduce environmental impact.
Remember to always refer to your motorcycle's owner manual or consult with a qualified technician for specific recommendations regarding idle speed and engine care for your particular make and model.