Well, I'll be damned! THAT'S what that ratty old foam is for!hold onto your undies cuz I'm about make a very big deal about 3 little pieces of foam that may be the cheapest items on your bike aside from the air in yer tires and remove all doubt.
The airbox intake snorkel should be under the seat, just behind the battery. The filter is on the side but the snorkel is the point from which the airbox draws its air.v interesting thread this! jut out of interest what year is your bike? mines a 2000 tw125 and my airbox is at the side of the bike not under the seat, well it is but the filter isnt