Hello! I’m also from Switzerland and i bought a xt550 to restore ! Do you have any tips for parts (especially plastics) ? Or do you have any spare parts left?
I restored RDs und XS650 etc but XT550 is the hardest to get parts, you might have a look here motorbike.ch/shop/ or you look for the facebook group "Yamaha XT550 Italia" some guys in this group have a lot of parts for sale including plastics which are hard to find....