HI, new to this forum and new to Moto Guzzi and totally loving my new V7 III Special. I have 570 miles in the first few weeks and have not gone over 4,500 rpm or partial throttle. The right side header is going quite dark brown and now blue and purple. I called the dealership and they say that sometimes one side discolors more than the other. What do I need to check? I will do the valve adjust at 900 miles or should I do it now? Thanks for any help. Fantastic bike! I don't know if it is relevant but the air temp here has been around 34 to 40 F, and I let the bike warm up for 5 to 7 minutes before starting out. Thanks for any help.