Is it just me or are the diagram reference numbers out of sync with those same numbers in the part description and part number list.

For example I'm looking for some rubbers for the tank mount and in the section "NSR250R2J/R4J [R5K/R5K-2]" / Fuel Tank F14-1 / I can see the rubber mounting block for the rear of the tank is referenced as #13. However in the parts reference list below the diagram #13 is called a "Filler Cap COMP." ?

I have found this mismatch a few times. Is there a problem with the list or am I doing something silly?

David Silvers tell me the part is: 17613-473-000 which on the part listed as #12

Neil