Yes you can. Waypoints and tracks are not interrelated like waypoints and routes are. Just go to the “Nav” menu tab and select the “Saved Tracks” menu, than use the right arrow and you will see the “Delete” selection along with two others. Than just select the track you want to delete and use the right arrow to start the process. You will have to answer "Yes" to the question of whether you really want to delete or or not.