I have found an online parts supplier in Europe that still may have parts that are deemed obsolete and unavailable here in the USA. I recently ordered a pair of lower cowling attaching brackets for the 91-95 models. For anyone that needs these, unfortunately I bought the last pair available.
https://www.motorcyclespareparts.eu/en/yamaha-parts/1991-fj1200-motorcycles (https://www.motorcyclespareparts.eu/en/yamaha-parts/1991-fj1200-motorcycles)
Fred
There's also CMSNL (CMS from the Netherlands), who still have stocks of some hard-to-get FJ parts.
https://www.cmsnl.com/yamaha-fj1200_model16734/ (https://www.cmsnl.com/yamaha-fj1200_model16734/)
https://www.cmsnl.com/yamaha-fj1100_model16733/ (https://www.cmsnl.com/yamaha-fj1100_model16733/)