Hello all, just acquired a 1980 KDX 175A and after inspection found the cylinder to be badly scored, although it does run/idle well it wont produce power under load. Piston and rings are brand new by previous owner. Is it possible to bore/hone or resleeve these cylinders? I was under the impression that because they were "FUSION" formed? that this could not be done. Any info would be great appreciated as I like the bike and would like to hang onto it.