Hello:
There is a web site in The Netherlands, CMS, which has the on-line parts-fiche listed for most, but not all, VFRs (including U.S. models):
http://www.cmsnl.com/
CMS has a particularly nice feature. If you already have a part number from another source, or, if you acquire a part number from a parts-fiche on CMS, you have the option to click on the underlined part number, and this handy little cross reference window opens up, which is entitled, "Suited for models." So, that "Suited for models" cross reference will show you EVERY Honda, which ever used that part. This, therefore, often can answer those frequently-asked questions such as, "Will a widget from an '86 fit the '87?"
Ron Ayres also has a "Reverse Part Number Lookup." This too is a nice feature. If you already have a part number, load the part number into that field, and the system pulls-up a list of the bikes using that part AND the parts-fiche parts list, drawing (click on "view" to see the drawing). Very cool:
http://fiche.ronayers.com/Index.cfm
Not ALL VFRs are listed on CMS; not ALL VFRs are listed on Ron Ayres, but between the two resouces, you can usually get the information you want.
rctwentyfour