It's a pain sometimes, also depending on the filter. Just have to be careful which way you turn the screw, you want to go in which is clockwise. It's like an optical illusion when the hand is pointing up. I always look at my fingers holding an imaginary small screwdriver, and turn my fingers. Also some have gone with after market pilot screw that can be turned by hand, I never got one of them, seemed a waste, once the pilot screw is dialed, really only needs to adjusted for winter and summer. Those who have to constantly adjust it and or the idle screw, then something else is going on, which usually is an air leak or vacuum leak.

My carb is dialed in, other than some manifold leaks I found recently (old gaskets, I don't use o-rings anymore) and once the engine is warm, my idle stays put and only have to adjust pilot screw for any cold weather that last for more than a couple days. I'm also running the 42hsr and pilot screw is on top, so much easier to get to.