Learning how to do basic maintenance is a must for any motorcyclist. By knowing how to do basic things, you can save yourself tons of money over the long haul. Many modern motorcycles can go for a very long time without serious maintenance or upgrades. Even if you don't like doing maintenance, knowing the basics is a necessity.
Here's a good video about how to change your motorcycle's oil and oil filter from Motorcyclist Magazine's MC Garage. While things are going to be a little different for each motorcycle, generally they'll follow the steps outlined by Ari Henning.