The hose with the loop looks like a breather hose and could connect either to the crankcase breather catch tank or the air cleaner box.. Others will confirm.
If there are only two wires going into a switch or bulb holder, then unless it is an LED (read diode, polarity sensitive) it doesn't matter which way round they go.
With the indicators it looks like white/green and black to the right and white/black and black to the left.
That would seem to indicate (see what I did there?) that black is the earth.
There should be a downloadable wiring diagram somewhere.. Anyone know where to find it?
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