what are they off? looks like a ke70?
the ones on my ke35 just had 2 bolts on each side as fangsport has described. just unbolt them and the bumper will be loose and hang down like you said, but you may need a bit of pulling to actually get it out. the ones on my ke35 get wedged in pretty good, just make sure you've disconnected your indicator plugs before you pull it out though!
