To change the motor oil of a Yamaha MT-07, start by warming up the engine for a few minutes to make the oil more fluid and easier to drain. Turn off the engine and place the motorcycle on a stable stand. Locate the oil drain plug located under the engine. Place a container to collect the used oil under the drain plug. Use a wrench to loosen the drain plug and let the oil completely drain into the container. Once the oil has stopped flowing, clean the drain plug and the surrounding area. Tighten the drain plug securely. Next, locate the oil fill cap located on the top of the engine. Remove the fill cap and, using a funnel, slowly pour the correct amount of new oil specified in the owner's manual of your Yamaha MT-07. Make sure to use the recommended type of oil for your motorcycle model. After pouring the oil, replace the fill cap and make sure it is closed tightly. Start the engine and let it run for a few minutes to allow the oil to circulate properly. Turn off the engine and check for any oil leaks. Finally, dispose of the used oil properly according to local regulations. Regularly changing the motor oil is essential to maintain optimal performance and longevity of your vehicle.