i have noticed in my sight glass that there is a white residue I thought at first there was water in the oil but i drained the oil and it looked normal and i have been changing after 2 to 3 races and or rides but it does not go away now i am about to sell it and I want to know what it is I do not want to sell it to my friend if there is a major problem

this happen fully stock
i just put on a fmf powercore4 q series thats all that is new

any info would be apprieciated

thank you