its on the footboard witha torq screw ull find the battery in there a long with the fuse and cdi
trekkkkkkker, August 2006
its between your feet on the footboard under a plastic cover held on by a torx screw ok ,adam
adam, December 2005
look under the seat, maybe inbetween the seat and the handlebars on the foot rests? could even be in the front above or below the headlights like it is on a aprillia scarebeo. just take ur bike apart and have a look.