Revving a motorcycle immediately after starting it is not necessary for most modern motorcycles. In fact, it is generally advised to allow the engine to warm up for a brief period before riding, rather than immediately revving the engine.
Modern motorcycles are equipped with advanced engine management systems that include sensors and electronic controls. These systems regulate the fuel-air mixture and other engine parameters to ensure optimal performance and efficiency. The engine management system is designed to handle the initial startup and warm-up process without requiring excessive revving.
Revving the engine immediately after starting can cause unnecessary stress on the engine components and may not provide any significant benefits. It can result in increased wear and tear, especially when the engine oil is still cold and has not reached its optimal operating temperature. Additionally, excessive revving without load can lead to poor fuel combustion and the accumulation of unburned fuel in the exhaust system.
That being said, it's still a good practice to allow the engine to warm up for a short period, usually a couple of minutes, before riding. This allows the engine oil to circulate and reach its proper viscosity, ensuring proper lubrication of the engine components.
Always refer to the motorcycle manufacturer's recommendations and guidelines regarding warm-up procedures, as they may vary depending on the specific model and engine design.