i tore down my 1985 200x because it was burning oil, it has a high dome piston stamped 75 on the top, made by toko japan. the most i can find is 60 over pistons. did they go 75 over? i tried to find info on toko pistons but no luck. i'll have to get a new cylinder. any piston suggestions? thanks.

 

Bring the jug to a machine shop and have them measure the bore.