The 65 Saito has an abc type cylinder - piston assembly so to speek but it has a ring on the piston. You will need to wear everything in to itself to decrease friction. The ring will fit itself somewhat to the chromed cylinder.

These engines don't require a lot of break-in. Once you get the needles set, put it in the air but don't run it wide open all the time and don't forget to have that smoke trail always.

enjoy

Jim