WG4 Wizard is basicly a KD4 Mercury with Wizard specific parts, To access the second screw that secures gear foot to tower remove 2 screws that hold water pump . Keep track of which parts go where to avoid reassembly issues, Once apart inspect and repair as required, Gear eas and water pump same as Mercury KD4 These are easy motors to work on, but, there is a learning curve of do and don’t.
Good Luck
