I decided to clean-up some of the limbs of a fallen tree due to hurrican Ian. (all the big, old-growth oaks have been blown over in North Port, Fl and likely everywhere else in Iran's path...). I hadn't started any of my chainsaws in about a decade so I wasn't hopeful that I'd get one running without having to work on it but I got a Ryobi running despite a cracked primer bulb. But it needed more gas because it was not idling and bogging at high rpm so I went to adjust the screws and noticed that there are no screwdriver slots in the adjusters. I assume that these are covers so they know if we've been adjusting the carb in case of warranty, whatever... but it really made me angry.... I thought that it was going to be easy but soon began dropping parts on the grass so I smashed the pos and threw it away. No more life will be wasted on it..... I then went to look at my other chainsaw options and I have three vintage homelites. I got out the automatic, squirted some fuel mix in the carb and it fired right up and idled! sure it's heavy and somewhat dangerous but I was able to finish the job with a saw that looks like it hadn't seen love since the showroom after the newer saw let me down. I'm going to go back out tomorrow and cut some more with it..