On the fuel pump: I assume that its electric and not hand pump?? If its like mine there are 4 small screws in the case. Remove the pump, lay it down flat. Now you can easily remove the screws and lift off the outer case. You will see 2 small plastic gears. It sounds like the gears may have foreign material in them such as bits of plastic from fuel tanks or the fuel may have gelled a bit. In any case its an easy fix. Clear the gears or remove them and degum them. Reinstall the gears and put it back together. You can prevent the pump from getting stuff in it by installing fuel filters on both sides of the pump. That way nothing gets into the pump from the fuel bottle or plane fuel tanks. Hope this helps a bit! [8D]