I removed the ninja stickers from my bike yesterday and it was easy as could be. I heated them with a hair dryer to soften the vinyl. Most of the adhesive came off since they were heated first. The rest of the residue came off with Goo Gone. I then washed the areas. Here is what it looks like now:

http://www.ninjette.org/forums/picture.php?albumid=522&pictureid=4457

Very nice! What luggage is that btw?

Thanks! That's the Cortech Sport Tail Bag. I love it. In this photo I have a bungee net over it.

The stock bungee hooks on the bag are great, but they're too bulky to grab the bike's pop up hooks without touching paint. Just last night I swapped out the original hooks on the bag for standard coated bungee hooks. Now they fit perfect on the ninja hooks and I don't have to use the net.