How do you change the oil on a 1991 polaris Indy 400?

Well, let's start by gathering your materials - you'll need a drain pan, a new oil filter, fresh oil, and a wrench. Locate the drain plug underneath the engine and place the drain pan underneath. Loosen the plug to drain the old oil, then remove and replace the oil filter before refilling with fresh oil to the recommended level. Remember, take your time and enjoy the process - it's all about caring for your machine with love and attention.