New Jonway 250 stupid "Whats this?" questions

[Technorick]

I did complete PDI accept the gear oil change.

1. It appears the YY250T-2 (aka MC13) requires the clutch cover to be removed to refill? or is that clear capped hose that appears to lead to the gear res the refill? otherwise I guess im supposed to drain and refill from that same "inside closest to the black cover" bolt?

2. What's the flat light grey aluminum block attached to the exhaust? it connects to a hose that leads to an air can that does not have a hose on the other end... I ask because My bike shipped without a fuel line connected to the carb... Is that round black air can supposed to have nothing on the other end?

3. what's the spring surrounded hose that comes from the bottom of the carb bowl and is mounted to the water pump housing? A Bowl drain to remove fuel in off season? I removed the screw and lock tightened.

Other pics: examples of the bitched up fan screen from the factory, and the jizzed up oil screen from the factory including paper wrapper residue. Jees I'm glad I'm going over the bike!

http://s1377.photobucket.com/user/Technorick/library/