Remove the cylinder head cover(s). (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - REMOVAL)Rocker arm shaft bolts are captured to the shaft.Loosen the rocker shaft bolts , rotating one turn each, until all valve spring pressure is relieved.Remove the rocker arms and shaft assembly .For rocker arm disassembly procedures, (Refer to 9 - ENGINE/CYLINDER HEAD/ROCKER ARMS - DISASSEMBLY).