Hurricane engine startup Problem

[Pluto]

.... does anyone know how to get the Hurricane in the first mission of the campagne startet?

I am flying with complexe engine management and in other selfmade missions I have no problem getting the Hurricane off the ground.

In the first mission of the campagne I dont even get the engine started.
I open the fuelswitch, open the radiator, set mixture to rich, switch on the two magnetos, put proppitch on full and throttle on about 20% and push ignition - nothing, only a slight movement of the prop and some clouds from the exhaust pipes thats it, what is different on that Hurricane compared to the one I normally get started?

Anyone know?