When taking apart a Yoda, there's one vital key... You must drill out the pin in Step 1. If you attempt to tap it out you will ruin the motion sensor.Click for bigger pics!
Step 1: Drill out the pin oppostie the black knob seen below.
A good tip is to tape the surrounding area incase you slip with the drillbit.
Step 2: Carefully pry off the plate surrounding the switch.
Step 3: Next take out the two screws holding the switchbox on.
Then unscrew the third screw and slide the "clamp" up to reveal a hidden pin. Simply tap it out.
Step 4: Unscrew the black knob. Now the electronics can be pulled out.
Step 5: Remove the metal guard to reveal a large pin. Turn the saber over and tap this out.
Step 6: All that's left is to tap out two tiny pins that hold the blade holder to the soundboard chamber.
I'd like to give a shout out to Ti-el_terall, whom I learned from.