You need to remove the seat,sidecovers. Then take both sides off of air box (so you can move it slightly) remove fuel line (turn petcock off first) remove vacumm line from the tank and remove tank. Then take a philips screw driver and loosen the clamps on the carb boots.At the air box boots take a small flat screw driver and roll thye springs back. Disconect the choke cable.use a 10mm wrench and loosen adjusting bolt on throttle both the push and the pull side.unscrew the cables out of the braket. pull backon the airbox as you tilt the carbs up toward the airbox and they should come out.once removed you will need a philips,narrow flat head.and a 10mm wrench. drain fuel from carbs and remove bowls. take one carb apart at a time so not to mix floats and needles up.pull the pin holding the floatand remove the needle sholud come out with it.use the 10mm to take out the needle seat(don't loose the washer).
look down the holes in the bottom and you will see screws this is your pilot jet.BE VERY CAREFUL UNSCREWING THE JET AS IT IS BRASS AND WILL STRIP VERY EASILY. Turn the carbs over and remove tophats,srping and slide.turn your air mixture screw in until it hits bottom and count the turns (usually about 21/2 to 3 turns) remove screw and sring,washer and oring. If the oring and washer are stuck in the hole you will need a pic set and alot of pashence. Don't loose these or your bike won't idle right after.clean crabs with carb and choke cleaner and reassemble in reverse order. Hope this helps
P.S. turn mixture screws in all the way and back out same number of turns as you counted before.