Parts such as the Wire Harness - Horn - Ignition Coil: Washer,spg.,5mm, Bracket B,ign, Coil,l.ignition, Band A1,wire are included in the Cb550k3 Four England Wire Harness - Horn - Ignition Coil parts fiche.
On this parts fiche the Band A1,wire is the most specified component.
The most expensive part in this assembly is the Coil Assy.,ign..