The Tower .40 was basically an OS FP .40. First make sure you are using a 9x6 or 10x6 prop. It's possible that the spinner is rubbing against the plane's cowl. Make sure there is about 1/16" clearance between the spinner and the model. It is also possible that the spinner and prop are slipping against the drive washer. This can cause the spinner's backplate to get hot enough to melt.

I'd just remove the spinner until you get the engine running. Make sure the prop nut is tight.

Disconnect the fuel tube from the carb and remove the glow plug. Use your starter to spin the prop. If it is flooded fuel will spray out of the head (so lean back when you do this to protect your eyes).

Then, do as mike109 said: turn the needle valve in all the way and open it three full turns. Reconnect the fuel tube and install the glow plug. Open the throttle all the way and hold your finger over the carb's opening. Flip the prop until you see fuel travel up the tubing and into the carb. Remove your finger and flip a few more times.

Now, attach your battery to the glow plug and use the starter. It should run assuming the glow plug is good and your glow battery is charged.

David