Wiring and Controlling an 88004 servo from a RaspberryPI
Smoking breadboard connectors are never a good thing - so check your wiring to make sure all is connected well. Also, make sure that you have the GND of your powersource connected to the GND of the RPi, so that all voltages are relative to the same ground potential. Finally, I'm not sure if the Servo will work with 6.5V - it has been designed to work on 9V. A different powersource might give better results.