1995 Mariner Mercury Outboards Service Manual 50HP 4-Stroke, Page 121Get this manual
INTAKEEXHAUST VALVES TORQUE REFNO1 10 11 12 13 14 15 16 QUAN448888168881212521 EXHAUST VALVE INTAKE VALVE SEAT -Valve Spring SEAL-Valve Stem VALVE SPRING-Outer RETAINER-Valve Spring KEY ROCKER ARM SCREW NUT ROCKER SHAFT PLATE PLATE SPRING SCREW (M8 30) PLUG POWERHEAD (Contents indicated by GASKET SET (Contents indicated by 120 10 13.5 DESCRIPTION