Front Rocker Arm Oil Pressure Switch Removal/Installation

Remove the engine cover (see step 1 on IGNITION COIL REMOVAL/INSTALLATION ).
Disconnect the front rocker arm oil pressure switch 1P connector (A).

Fig 1: Oil Pressure Switch 1P Connector & Front Rocker Arm Oil Pressure Switch With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the front rocker arm oil pressure switch (B).
Install the parts in the reverse order of removal with a new O-ring (C).