First, contact your importer / dealer to get a new one.
IMPORTANT:
The sticker is very sensitive when heated for the first time. Clean the muffler surface with contact cleaner, and apply the sticker by pressing it with your fingers. You should run the bike to heat the muffler and check that there is no air left between the sleeve and the sticker. If the sticker tends to fall off when heated for the first time, press it back gently with a dry cloth. Do not use an aggressive cleaner when cleaning.
