Yes of course they are I didnt read your thread correctly sorry!
You should'nt have to cut anything of the airbox just squeeze the thin steel bracket together slightly to allow it to slide forwards 12mm.
Also,inlet mod only on my bike,if I remember correctly I did'nt do any re-jetting just a bit of fine tuning with the needle height and airscrew etc, the result was the engine revved out much higher and much cleaner,not as rich as the standard barrel.
As you say it 'leaned' it up.
(the bike I did was a white framed TY 89' not a pinky but as far as I can remember the airboxes are the same on both, could be wrong though but if I am misleading you I apologise.)
<{POST_SNAPBACK}>
Hi
I fully agree with 2fg. The mods are also on a 89TY mono.
Referring to the airbox, the standard opening on the top is not enough apparently, just extend it a bit and add a twin walled air filter. This will let the bike breath more and make the mods more effective.
When I have got time I will post sum pictures of the air filter and carburettor extender.
Cheers
Scott