How many turns out are you now?
It is fairly easy to change jets. 8mm box wrench and a good flat screwdriver. (if you have a pair of short screwdrivers, you won't have to even pull the carbs)
You can get a set of Hex S.S. bolts from Brent, to replace the phillips ones, and getting the bowls off is alot easier in the future. Don't be Welsh He-Man with'em, they will strip that aluminum if your not carefull.

06BA,-AI,NoBfls,K&NPods,TBS,155/45,2 3/4Out,SidGapPlgs,Wirsnbrs NawImPrityFknFarFrmOkMan