Main Motorcycle: 04 Thunderbird Sport
Join Date: Jun 2012
Location: Calgary, Canada
Though to see (obviously). Right under the cap has some big flakes missing from the coating (which prompted me to remove the petcock). What I do see looks like some of the coating is flaking of in pieces a couple mm across (1/8" for our American and ol' school friends). The bare metal has surface rust on it. Nothing major, but again, that just what I see.
I was reading ssevy's write up yesterday and was contemplating it. I think I'll do as you suggested and get an inline filter.
I'll remove the petcock again at end of season next year and see what it's collected. If it looks similar to this time I'll seal it up.