Is the engine oil and transmission fed from same tank not refering to clutch-primary oil?

In most modern motorcycles, the engine and transmission are lubricated by separate oil systems. The engine oil is stored in the engine sump, while the transmission oil is stored in a separate reservoir. This is done to ensure that the engine and transmission have the correct type and amount of oil for their specific needs.

However, there are some older motorcycles that use a shared oil system for the engine and transmission. In these bikes, the oil is stored in a single reservoir and is circulated through both the engine and transmission. This type of system is less common today, as it can lead to problems with oil contamination and overheating.

As for the clutch-primary oil, this is a separate oil system that lubricates the clutch and primary drive. It is not connected to the engine or transmission oil systems.