Ask your dealer whether they will remove the Air Injection (AI) pieces. If not, get an elimination kit ASAP. At the same time, adjust your air mixture screws to 2-3 turns out from lightly bottomed. Balance your carbs after this.
This will cost very little money and could keep your pipes from bluing.
Everything costs an arm and a leg in the UK
Welcome to the site Neil, you are in good company on this site.