So I just changed the oil in my 2012 KX250F and I noticed the oil was draining slow and upon closer inspection there were metal shavings coming out with the oil. Now I'm new to dirt bikes and this is my first one and oil change but I'm pretty sure this is REAL bad. I pulled off the head cover and the timing is correct. There doesn't appear to be any damage on the top end. How bad is this and are there any suggestions as to what might be coming apart inside my engine? Please help.