Typically, Honda seats have a bolt at the
rear and one on either side. Remove the bolts, the seat comes off easily. This
process is described in your owner manual which should be in its space behind
one of the side covers. In that same space, you should find a tool kit with the
tools required to remove the seat. You might want to check out this
site ...
http://hrca.honda.com/publications/.
Some Honda batteries come out the side. Some other Honda motorcycles have a seat which
unlocks and opens up in a similar fashion to a glove box in a car. The battery
is easily accessible in this style. I don't think yours is this style, still this is good information to have.