try cut off small rivet which holds the tab(or try pull it out with some pliers) it's holds all cylinder in the neck ,try use what left from broken key to turn lock hopefully should pop out and never use this lock again
Grzegorz ......55 cubic inches http://www.flickr.com/photos/25172906@N06/ 904WisecoTPUSAcamsTTPignitorgutted Airbox"breath"airIntakeKeihinCR-ScarbsBlackEpcoExhaustS/SwheelsPortedPolishedHead
