What kind of oil should you put in a Yamaha tt-r 125?

For a Yamaha TT-R 125, it's recommended to use 10W-40 or 10W-30 motorcycle oil that meets the JASO MA or MA2 specifications. This type of oil ensures proper lubrication for both the engine and the clutch, which is essential for performance and longevity. Always check the owner's manual for specific recommendations and guidelines regarding oil changes and maintenance intervals.