I apologize, I just received this second hand, I'm a newb, so please bear with me. Are you are referring to the manual in FSX/Learning Center/Augusta Westland Flight Notes/Engine start up? I do not see the manual start up procedure in there. It does say to use the fuel valve switch. My order is this: battery-- all engines on--APU switch on--APU set to bleed--(fuel switches on)master start--gen 1--gen 2-- switch APU to engines. i know I'm doing something wrong due to the warning lights, but I haven't found the correct procedure yet. Good thing I have the FSX set to easy or I would have destroyed that helicopter.
Correction on start up procedure.(again my best guess..)
(1)Toggle Battery Switch On
(2)Ignition (Knob) Switches On 1,2,and 3
(3)Toggle Fuel Valve Control Switches On 1,2,and 3
(4)Toggle APU 1 Switch On
(5)APU Start Switch (Button) On
(6)Toggle APU Bleed Air Source to Bleed
(7)Toggle Master Start On
(8)Toggle Generator 1 On
(9)Toggle Generator 2 On
(10)Toggle APU Bleed Air Source Set to Engines
(11)Toggle APU 1 Switch to Off
Warning light on Rotor RPM stays on until Engines stabilize.