Weird 250R sound??

[Fox250R]

My 85 R is making a strange sound..I was at the sand dunes yesterday and everytime id power slide on a hill or whatever i would hear a clicking sound and a tugging fell,then i noticed oil leaking near my front sproket..So i rode back to camp and looked for the leak but couldn't find anything..My case was still pretty full with oil so i went back out for a while..It ran good for the rest of the day but this morning there was a puddle of oil under my bike.What could this be??

[threewheelin-feelin]

did you oil your chain? sometime when i oil my chain it starts leaking from by the front sprocket.

[Fox250R]

Its coming from the case..It's case oil..

[AirDonk]

Your chain didnt come off when you where riding recently did it? That happened to my brother not long ago and it cracked his case on his 86 R.

[hondaATCman]

It might be the sprocket shaft seal.