Milky colored oil is usually water or acid contaminated oil. (Acid leaching out from the metals if the bike sat for a long time will turn fresh oil milky in a few month of non use). Water will turn oil milky colored if it has gotten in the crank case.
replace the split pipe, change the oil and filter on the bike, and all should be good.
replace the split pipe, change the oil and filter on the bike, and all should be good.