Fuel Pressure Regulator Replacement

Remove the fuel tank unit (see FUEL PUMP/FUEL GAUGE SENDING UNIT REPLACEMENT ).
Remove the clip (A).

Fig 1: Removing Fuel Tank Unit
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the fuel pressure regulator (B).
Install the regulator in the reverse order of removal with new O-rings (C) lubricated with clean engine oil.
Make sure the regulator is installed with the drain hole (D) facing down.