Front Rocker Arm Oil Pressure Switch Removal/Installation

Remove the engine cover (see step 7 on ENGINE REMOVAL ).
Disconnect the front rocker arm oil pressure switch 1P connector (A).

Fig 1: Front Rocker Arm Oil Pressure Switch And 1P Connector And O-Ring 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).