If you have your bike's part's manual you will find the part manual of each single part, be it a bolt, nut, gasket or float bowl. You will find also the part number for a complete assembly, like a carburator.
But there are Honda part numbers for rebuild kits, like the part number for the brake master cylinder rebuild kit, or another one for a full set of top end gaskets. That way you don't have to buy the individual items and you save money too.
Where is that information available? Is there a document per model, or a document with all the part numbers and the bike models that apply?
Raul