I can see the fairing brackets looking from underneath with a flashlight. All brackets seem tight and in place. I did notice that there is looseness in my headlight when I tap it with the palm of my hand. I can think of no other cause of the front end noise I am experiencing. So, I put a piece of tape over the lens to secure it place temporarily. I will take my C10 out for a test ride in the morning. Hopefully this is the cause.
Your headlight assembly should not be loose. The headlight assembly is fastened to the fairing with 4 hex head screws. You may be able to access the screws if you pull your tank and the inner fairing pieces. I can't say for sure as I have never had the need to do so.