The puke tube sounds normal, remember to put the plug back in it.

The ticking sound.... are you sure it's not the speedo or the headlight rattling at a certain rev range?

The engine has a tube that vents the engine crankcase, and the things that come out of it are byproducts of combustion.  Fumes, water vapor, some oil spray.  There is a chamber in the front of the air cleaner that allows the droplets to settle out (oil/water), and the fumes are burned in the engine as the air cleaner housing directs those fumes into the air coming through the air filter.

The tube is there to allow you to drain out the liquid caught by the air cleaner....it is perfectly normal for there to be some liquid in that tube, and that is exactly why Suzuki provided you a way to drain it at your regular oil change.

Some ticking is normal on this bike, and it does come and go as the rpm changes.  When ticking becomes knocking...then you can justify being concerned.