Are you using a twist grip? There is a note in the docs folder:
• The twist-grip throttle in the 530 incorporates a fuel cutoff as well as replicating enabling the governor when fully open. It also has an idle release function built in. Due to these included features, it is not currently recommended to bind the twist grip to a hardware controller.
• Due to the replication of a proper turbine engine start-up procedure, using CTRL+E will not introduce fuel during the automatic start-up process. It is required to open the throttle manually to continue start-up, and to roll the throttle fully open to the governed position for flight.
• The simulator currently only allows the engine governor increase / decrease function to be operated by key bind; the toggle switch on the pilot’s collective is inoperable.
(The keybinds you want are ENGINE TRIM RPM INCREASE & ENGINE TRIM RPM DECREASE )
Also note: Skip the step in the before start checklist where it says Throttle FULL OPEN, GROUND IDLE, then CUTOFF. If you do that , it will cause a hot start.
Start cranking the engine, do not add fuel until minimum 13%, I usually let it stabilize at 20% before adding fuel.