Hey guys I'm new on here, I've just bought a kx125 1986 and need many many parts for it. The first question I have on here is about pistons, my barrel measures 57.5mm so has been bored at sum point. I need to get a new piston looking online the pistons for the '86 year seem to be twice the price of the other years so can I simply by a 57mm piston from another year at a cheaper price?