Since the shootout, I've taken the bike out for three rides, two at Milestone MX and one at Perris Raceway under the lights. I've also changed the oil, popped in a new oil filter, and swapped the dirty stock filter for a brand-new, pre-oiled Twin Air air filter. If you've never owned a Yamaha or are in the market to buy one, these frequent maintenance tasks are fairly simple. There is only one oil compartment for both the engine and clutch; therefore just one fill cap and one drain bolt and the oil filter is on the pipe side of the bike and replacement is straightforward. The YZ250F does have an oil screen that is sort of tucked away in a strange place. Below the ignition cover, behind the shifter there is a retention bolt that overlaps the oil screen pull tab. Once you remove that bolt you just pop out the screen, clean it, and pop it back in.