The March, 2004 issue of Rider magazine had a tech-answer about emblems. Not the same as a graphic that's covered in clearcoat, but here's their (my edit) answer: Warm up the adhesive-backed emblem with a hairdryer to soften the glue. Take a length of fishing line between your hands and work it with a slow sawing-motion under the emblem. It'll come off with no harm to the paint. Remove the glue with alcohol or electric-contact cleaner. To put a new emblem on, slather it with liquid hand soap. This gives you time to squirm the emblem in position. The soap won't affect the adhesive.