Recommended drain intervals for oil - Motorcycles

It usually depends on where you ride and how far you go..if you only use it for short trips, and live in the desert, i would change it every 6000 miles but its more important to worry about non-usage...if you only ride it occasionally, and only go about 30 miles a week then i would change it every couple of months and don't go by mileage, because combustion gases will form in the oil and create acids..so i personally never go by mileage, i go by how many bottles of oil i"ve added to the engine since i serviced it last..i say by the third bottle its time to change the oil and filter, but if im racing my bike proffessionally, its always before and after a race, and dont have anyone tell you that that is still too sone because the same oil that lubes the top half of the engine is the same oil that lubes the gears, and if you ever noticed that when your bike starts to mis shift and you grind the gears...when you put in fresh oil, it'll shift a lot easier. So to answer your question, whenever you have to ask yourself you probably need to have it changed.