thats it..tried to start my 2004 ds 650 after a long time and heard some gurgling and when i looked in airbox it was full of oil..any idea

little history--

a while back a friend crashed my quad and flipped it real good--been broke cosmetically since then..i repaired all cosmetic stuff this weekend and charged battery, when i went to start it ..would not turn over and then i found the oil in airbox..

 

Its normal for oil to get in the air box if a ATV was on its side or even did a lot of steep hill riding. The oil gets in from the large crankcase vent tube that connects to the air box.