Guys/Gals?

Reading through the posts it seems we own a bike with a lot of character, bumps, knocks, chirps etc and everyone has a demon or two inside. I guess as repetative as this is I'd like some thougts or advice on my babies demons, I have the chirp and the squeel when two up riding so reading your posts I will tighten my belt, I will choose to ignor the knocks I am hearing at the moment at idle, but along with this I have some questions.

She smells like fuel at the rear end actually standing anywhere near her at idle I guess what people descibe as running rich? I assume I will need to get her to a yamaha dealer for a tune and service?

In Australia its KLM per Hour so sorry dont know MLS but went for my first descent ride today have put 185kms on her and the guage is showing her as nearly empty, guy I bought it of suggested she was good for 250 to 300 depending on my riding style?

Also get a weird ticking noise if i put my head near the block in the driveway it sounds like a piece of metal flying around in the engine. If sitting over her on the road mobile it sounds like a piece of metal tinging around in the fuel tank maybe two different noises.

is this all normal, i know nothing about bikes, but want to learn and am so happy this is my first bike I guess the long term thing is to own her for a couple of years then complete custom overhaul after I've worked her out.