I bought the bike used so I am not sure how tight the fender should be. I assume it shouldn't move.
Bolts are tight but there is slop in there. I don't see any washer in the parts list. I assume this isn't normal.
https://www.youtube.com/watch?v=gdYzCIuux_E&feature=youtu.behttp://www.partzilla.com/parts/search/Kawasaki/Motorcycle/2004/ZG1000-A19+Concours/FENDERS/parts.html