You can go to the parts store and get a can of adhesive remover, anything will work just let it soak. My kawi decal on the tank came off but you can see where it was clear coated over. It's not that bad but I notice it. I just need to get the tank buffed at a body shop and you'll never know they was there.
Hmm - am I the only one that thinks its a shame to take them off?
I prefer them on, so people can gaze at my Ninja when slowly rolling by them. Especially the "Ninja" decals, should be a crime to remove! :hail
Oh, and if you want to remove stickers, always heat them up before removing them (heat cannon is the best, otherwise just use a hair dryer!) - that way you can minimize the glue left behind dramatically!