250ex oil filter?!

[sheaff400ex]

My little cousin has a 250ex. I was wondering when you change the oil if there is a replacable filter like on the 400ex or just an oil screen like on our old 200sx. If it is a screen how often should it be cleaned? Thats in advance for any input.

[Lil90man!!]

not sure about the intervals of the cleaning of the screen but i know for a fact it doesn't have a filter like the 300/400's

[sheaff400ex]

thanks for the help