Third fuel lever?
The length of time it takes the Beau to warm up is ridiculous at the moment (compared to other radial-engined aircraft in the game). Gypsy, you'll find that if you advance the throttles too far the engine will will just stop and you're back to having to start it all over again. There is are two engine temp gauges behind the stick - keep a close eye on them. If you're starting with rads closed to get the engines to warm up more quickly, remember to open them again before taking off!