I would use isopropyl alcohol (rubbing alcohol). I have some 99%and know that works. Might try cutting most of it off with dental floss and use the alcohol on what you can't peel off. Also mequires cleaner works good too. Some guys recommend a heat gun also, but I haven't tried that. Not too much of a problem, just stay with it and be patient. These paint jobs are easy too scratch so no metal objects. Good luck
Bill James