How do you change oil 2002 Yamaha 125 breeze?

To change the oil on a 2002 Yamaha 125 Breeze, first, ensure the engine is warm for easier oil drainage. Remove the oil drain bolt from the bottom of the engine and let the old oil drain completely into a container. Replace the drain bolt, then remove the oil filler cap and pour in new oil, typically 10W-40, until it reaches the appropriate level on the dipstick. Finally, run the engine briefly to circulate the new oil, check for leaks, and dispose of the old oil properly.