This bike brings me so much joy, can't wait to ride!

Finally copped a 26 400e fresh off the showroom floor

Drz400s 2006. Connected to carb(yellow hose), head (black hose) and has a vent thing below. Says Mikuni but no numbers. Any ideas and knowledge appreciated!

id be interested in knowing what fender this is, i bought it second hand so thats why im uncertain. please lmk.