I have an 1984 125M and 200S.I am redoing the barings in the 200S and I already got the chain,and front sproket and I wonderd if I can use the rear sproket from the 125 on the 200 because it looks almost like new.Acording to dennis kurk the 125 has 49 teeth and the 200 has 43 for the front the 125 has 14 and the 200 has 11 if I added a few links to the chain would that work?