NEW GENUINE HONDA OEM INTAKE & EXHAUST VALVE KIT. EX VALVE (1) 14721-HN6-000. IN VALVE (1) 14711-HN6-000. CYLINDER GASKET (1) 12251-HN6-000. HEAD COVER GASKET (1) 12315-HN6-010. PIPE GASKET (1) 18291-MN5-650. […]