Bit of a weird one

[Jules-C]

Pipes connect to both front bottom corners of the air box. If the pictures load in one of them you can see it between the idle adjuster screw and the clutch cable.  The pipes connect to a T piece and then join the pipe coming out the top of the gearbox. There is a black plastic connector that has a piece of sponge in it that acts as a firetrap to stop you setting fire to the oil in the engine if the bike backfires through the air box.