I took my 2002 VStar 1100 Classic gas cap off the other day and a small BB sized metal ball fell out of it. The cap still locks on fine but I have no idea where this ball came from or what it does. Ideas?

I have a cracked gas cap seal on my M50. I know that I am not alone. An old bike from the 70's that I owned had a removable gas cap seal that I replaced. After close examination it looks like I could remove the factory seal from the cap and replace it with a similar seal from another model...