Remove the cylinder head cover.

Set the No. 1 piston at top dead center (TDC). The punch mark (A) on the variable valve timing control (VTC) actuator and the punch mark (B) on the exhaust camshaft sprocket should be at the top. Align the TDC marks (C) on the VTC actuator and the exhaust camshaft sprocket.

Select the correct thickness feeler gauge for the valves you are going to check.

Valve Clearance
Intake:	0.21−0.25 mm (0.008−0.010 in.)
Exhaust:	0.25−0.29 mm (0.010−0.011 in.)

Insert the feeler gauge (A) between the adjusting screw (B) and the end of the valve stem, and slide it back and forth; you should feel a slight amount of drag.

If you feel too much or too little drag, loosen the locknut with the tappet adjust wrench set, and turn the adjusting screw until the drag on the feeler gauge is correct.

Tighten the locknut to the specified torque, and recheck the clearance. Repeat the adjustment if necessary.

Specified Torque

7 x 0.75 mm

14 N·m (1.4 kgf·m, 10 lbf·ft)

Apply new engine oil to the nut threads.

Rotate the crankshaft 180 ° clockwise (camshaft pulley turns 90 °).

Check and, if necessary, adjust the valve clearance on the No. 3 cylinder.

Rotate the crankshaft 180 ° clockwise (camshaft pulley turns 90 °).

Check and, if necessary, adjust the valve clearance on the No. 4 cylinder.

Rotate the crankshaft 180 ° clockwise (camshaft pulley turns 90 °).

Check and, if necessary, adjust the valve clearance on the No. 2 cylinder.

Install the cylinder head cover.

Connect the Honda Diagnostic System (HDS) to the data link connector (DLC).

Turn the ignition switch to NO (II).

Make sure the HDS communicates with the vehicle and the engine control module (ECM)/powertrain control module (PCM). If it doesn't communicate, troubleshoot the DLC circuit.

Select BODY ELECTRICAL with the HDS.

Select ADJUSTMENT in GAUGE MENU with the HDS.

Select SERVICE REMINDER in the EU MAINTENANCE MINDER with the HDS.

Select SERVICE REMINDER ITEM 9 with the HDS.