yep take it man, you'll kick your self for ever if you dont.. you dont have to have a race bike to have fun on a track..
on the weekend just gone we had a ride day up here in QLD, and Troy (AKA FMX_22) rode a bomb stock crf50 with a bar kit and few other little bits.. just by looking at him i could honestly say he had blast..lol probly more of a blast than most of us on our better suited track bikes... lol he rode the nutts of that thing..