If you pay close attention to how many turns up you give the screw when you first start it, you can then back it out the same number of turns at a red light once it's warmed up and you don't have to do as much fiddling.
On my K1 I give it three half-turns up in the morning, and then about halfway to work I turn it back down the same amount. On my 550 it's about twice as many turns, but then it's much easier to reach on that bike, too. The K1 throttle screw is way up under the left side between and above carbs 1 & 2.
Some here say to leave the throttle stop screw set for operating temperature idling and only use the throttle grip or throttle grip friction screw to keep the engine idling while it's cold, but there's nothing wrong with using the throttle stop screw. I find it easier to use the throttle stop screw, so that's the way I do it.
