Raise the fuel tank, put a small towel under the idle adjustment screw and locknut (clearly visible near the left frame spar) in the event you drop the hex key you will be using, the towel will catch it, but leave yourself enuf room to adjust the idle when bike reaches full operating temp, take a single 7mm open end/closed end ratchet 12 point wrench and a 2.5 mm/.097 in. hex key to get started. Use the hex key to find the current position of the idle adjustment screw.............remember the screw adjusts from the underside so you will have to feel your way until the hex key drops into the hole in the middle of the screw. Remove the hex key and slide the ratchet end of the 7mm wrench over the hex key so that you will be unlosening the lock nut by pulling it towards you. DO NOT loosen the lock nut until you have the hex key re-inserted into the idle adjustment screw......once you break the lock nut loose, fire the bike up and adjust the hi-idle downwards a couple of hundred rpms and then turn the 7mm ratchet wrench over, and without moving the position of the idle screw, retighten the lock nut. Fire the bike up once you are done to make sure nothing changed as you re-tightened that lock nut. If hot idle drops 200 rpms or so, let the bike sit overnight and give it a cold start in the morning and see where the idle is. It can, according to the book be as low as 1000 or a tad lower on a cold start, as long as it idles smoothly. Your oil pressure will be sky high anyways cuz it is cold. Ride the bike for 15 minutes and see where the hot idle is............I would be happy with 1350-1400.
What I am doing to adjust my idle downwards is I bought (from Schnitz Racing) the Robinson Hi-Speed oil pump gear (behind the clutch basket) so I could adjust my idle down to about 1300-1400 or so and still maintain 25+ lbs of oil pressure (right now idle is at 1900) at full operating temp, with .395 lift web cams and 20 more lbs of spring seat pressure and 13.2 to 1 compression. You have a stock motor, but that gear would not hurt you to have in your bike at all. Retail is 109 bucks. More oil pressure, particularly on a hot day in traffic is preferable to less, IMO.