Just bought an XR250Y (MD30) factory e-start, steel tank, air pump & digital dash & it's well & truly over full with oil as it poured out of the air box when I opened it on inspection... The engine is as new with only 2100km's on it. I've searched the forums & people are saying between 1.3L & 2.0L... So no definite answer there. Does anyone know the factory amount with & without filter? Any help would be appreciated.