Hello Tatased
, here are some pictures for this repair, this is the very easy version that anyone can do!
Click on the picture to make it bigger.
This is the view from the front of the car, the black rubber hose connects the air filter box, on the right to the throttle box on the left.
car 002.jpg
Closer view
car 001.jpg
Undo this screw on the jubilee clip
car 003.jpg
and detach this end of the hose
car 004.jpg
Viewed from a different angle, you should now be able to see into the throttle box
car 006.jpg
Looking in closer....
car 005.jpgThis is the inside of the box you need to clean, your's will probably be very sooty, you can move the brass coloured flap to clean in behind it too.
Hope this is of help to you.
Oscar