Honda NRX1800 2004 Owner's Manual page 129

Spark Plugs
9. Reinstall the spark plug caps. Take care
to avoid pinching any cables or wires.
10. Install the remaining parts in the reverse
order of removal.
Tighten to the specified torque.
cylinder head side cover bolts:
7 lbf·ft (9.8 N·m , 1.0 kgf·m)
cylinder head top cover bolts:
9 lbf·ft (12 N·m , 1.2 kgf·m)
120
Servicing Your Honda