Just went out to the patio to move the Drz out of the wind and i noticed a small trail of red oil. After having a look it turned out it was the bolt at the bottem of the engine, on the right side where you undo to drain the oil out, Had worked its way out. I found it on the patio but i dread to think what may of happened if i was riding around and didnt notice. Keep em pealed and check yours. It could of been VERY expensive.