YPVS is probably some go-faster acronym. Is it written RD 350 at the back of the bike ? It looks like, yes (checked in the movie) RDLC, plus exadtement. Et l'YPVS (Yamaha Power Valve System) est un système de valve, spécifique à Yamaha, à volume variable à l'échappement. Truc utile sur un deux-temps pour gagner de la souplesse et du couple à bas régime.
May be a '87-'89 model. I have a RD350LCF model 2UA '88 (2UA was a version for Spain and Italy)... and is exactly like that
