Carlos,
I looked in the manual page 28 and it said: Manual cool down:
In the event if the engine does go into the cool down mode after the turbine shuts down or flames-out,
the user can lower the trim, and advance throttle stick to trigger cooling from starter.
So I think that answers that question, I hope.
I see you have a Futaba 14, how do you like it? I am currently using an 8FGS but needing to upgrade soon and the 14 looks like it would be great, other than the price.
Mike