What is the best amount of oil to add to a motorcycle?

[MaverickLee]

For most common domestic motorcycles below 150CC, the oil capacity is generally no more than one liter. It is absolutely essential not to overfill the motorcycle with oil. The correct oil level should be checked using the oil dipstick or oil inspection window. Below is additional information about motorcycle oil: 1. When adding oil to the engine, the oil level should be between the upper and lower limits on the dipstick. If too much oil is added, the oil volume will expand as the engine temperature rises, increasing the pressure in the oil chamber and the running resistance. This can lead to reduced engine power and increased fuel consumption. 2. Overfilling the oil can cause oil to leak through the crankcase vent pipe due to increased crankcase pressure. The oil pressure may also loosen the oil seals, resulting in oil leaks. 3. Excessive oil can affect engine cooling, leading to high engine temperatures, insufficient power, oil leaks, blue smoke from the engine, and issues such as clutch disengagement failure.