All TRX`s run rich as stock,at least that`s the considered fact on here.
Those `peaks`,they could indeed be the slides `hanging-up` a little in the guides/carb body.
I would try this:
1) Unscrew the two philips screws that hold the black plastic carb tops on.
2) CAREFULLY remove the carb tops(one at a time)and be careful not to loose the small O ring.
3) Withdraw the diaphragm/slide/spring and needle assemblies again one at a time(never mix carb components)and inspect them.
4) The slides will be black plastic and you should feel along their edges for any roughness or visible scratching,if any is found use a metal polish or similar light abrasive to dress them smooth again.
5) Inspect the diapragms by carefully pulling them in various directions to see if any holes or splits are evident.You can make a running repair to a small hole or split by using a cyanoacrolate(super)glue but I recommend you order some replacements ASAP.
Once it`s all checked out,cleaned,polished or repaired etc then use a silicon spray on reassembly to lightly dress the slides in their guides.
Go for a run and see if there`s a difference.
Oooo nearly forgot,these folks are really good for carb diaphragms:
http://www.nrp-carbs.com/
And here,I`ve found the float height/adjustment page:
http://www.factorypro.com/tech_tuning_p ... edure.html
