Removing the Skeg and Nose Cone
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Using a 4 mm hex bit or wrench, remove the four screws
that secure the skeg 
to the propeller drive motor.
-
Using a 4 mm hex bit or wrench, remove the two screws
that secure the front of the nose cone 
to the propeller drive motor.
-
Using a 3 mm hex bit or wrench, remove the single screw
that secures the bottom of the nose cone to the propeller drive motor.
NOTE: You should keep all of these screws and parts in a safe place, because you must reinstall them when reassembling the skeg and nose cone.