Blow dryer would work fine, once you get it warmed up, should peel right off. Goo-Gone, nail polish remover, mineral spirits, or WD40 on a microfiber will get rid of any sticky.
Fishing line or dental floss if you want tank badges or reflectors off, but warm 'em up with the dryer first also.
I just removed my filler cap tank & 8-ball fender sticker from a new '09 with no problems.
'09 Kingpin 8Ball
'06 HD Road King
'06 Vulcan 900 Classic