How to change the oil and filter on a 1983 kawasaki motorcycle. I can not find the oil olug or the oil filter

On my Kaw(95 KZ1000),look under motor for a bolt in the center of a circle -- loosen it, oil begins to drip. take it out, the filter comes. be on center stand for room and level. ck o rrings on bolt-1- and filtr-1How to change the oil and filter on a 1983 kawasaki motorcycle. I can not find the oil olug or the oil filterTell me the exact model # of your bike (ex. VN750A9), and I'll tell you exactly where they are.