been using this guide to do my panels and it works wonders, ive polished a few faded panels with some halfords rubbing compound and they came out brand new
http://www.3wheelerworld.com/showthread.php/24247-Sanding-restoring-plastic.-How-to-guide
red 1990 dtr - http://dt125r.activeboard.com/t45695405/red-1990-dtr/