To change your motorcycle oil, start by turning the engine on and letting it run for approximately two minutes. Then, switch off the motorcycle, and put it on a stand on a flat, horizontal surface.
Consult the owner's manual to find out the location of the waste nut. Once you've found the nut, spread newspapers or paper towels on the ground directly beneath the motorcycle to protect it from oil spills. Place a large container under the waste nut, and unscrew the nut using a socket spanner. Avoid touching the waste nut, as it may be very hot. Wait a few minutes for the old oil to completely drain.
Once the oil is drained out, clean the drain plug and its seal. If the seal is worn out or damaged, replace it with a new one. Next, locate the oil filter, and unscrew it using a filter spanner. Install the new oil filter. Consult the owner's manual to find out what type of oil your engine needs and the quantity you should put. Use a funnel to fill the engine with new oil, and screw the drain plug back in.
Turn on the motorcycle, let the engine run for approximately five minutes, turn it off, and check the oil level. Top up the oil if necessary.