News, information, issues, discussions, solutions. News, information, issues, discussions, solutions.1989 Suzuki LT250S Quadsport Bored .040″ Over , 07 YZF 450 Muffler And More – YouTube Posted byadminJan 28, 2015R1 Concepts Inc 1989 Suzuki LT250S Quadsport Bored .040" Over , 07 YZF 450 Muffler And More – YouTube.