How do you check the oil on a 2002 harley Davidson sportster 883?

The engine oil can be checked simply by running the machine until it is warm, and, after setting the bike up off the jiffy stand, remove that big silver plug that burns your right thigh. If the oil level is between the two notches, you are fine. That being said, there's more to oil than the level; does it look clean, or is it black and grimy? Does it smell bad? Smell like gasoline? All those indicate you need a change. Checking the primary/transmission oil requires a removal of the clutch inspection cover, A.K.A. the "Derby." Use care; the Motor Company uses butter to make the cap screws that secure the derby in place. The job of checking it, though, is as involved as replacing it, so if you even THINK you need to replace it, do so; Your clutch needs good clean oil to spin in.