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For fuel soaked fusalages, try mixing baking powder and rubbing alcohol in to a paste.  Apply a    generous coating of the paste to the fuel soaked area and allow to dry for a couple of days.  As the     mixture dries, it will absorb much of the fuel out of the wood.  Clean off the area with a stiff brush
and fuel proof using your favorite method.  For wood that has started to deteriate, the best repair is still replacement.

Running out of fuel !

Are you paranoid about running out of gas? Timers,bells,six maneuvers and it’s time to land? What scares you about running out of gas? If your instructor was anybody, he did a few dead-stick landings with you , so what is it? I think it is the possibility of running out of gas on the take-off. We’re all able to handle it if we got enough altitude or ideally on the approach. So how do I get my plane to run out on the approach and not the take- off? Raise the back of the fuel tank up a 1/2" or 3/4". Generally your tank is horizontal with the thrust line and the pick up is in the back of the tank, and sure enough when the tank runs out , you are climbing.By raising the back of the tank, in the climb out, you’ll have fuel and when your getting low on fuel, on the approach (or in straight level flight) your pick up will lose the fuel that is puddle in the front of the tank. you will experience and overall less time in the air, but you’ll be more comfortable running it to the limit.