Reddit mentions of Pacman Tool Pac Man Screwdriver Carburetor Ajustment

I use a Ryobi 26cc straight shaft trimmer. It's a multi tool that allows the end to be changed. I tried using the wheeled blade for edging the driveway and sidewalks, but in the long run ended up just using the string for everything. The blade is over kill. If you edge every week then the string is more than enough to keep the edges clean. I've had the Ryobi for 3 years. Last year I had to adjust the carburetor which requires a special tool or taking it to a mechanic. I opted to buy the tool and ever since then it has run great and started on a few pulls every time. I prefer spool string over the one time fixed length string. If you get the spooling right it's much easier than changing the fixed length. With a little practice I now get the spooling right 9/10 times. I prefer gas, but I think this mostly depends on yard size. Actually, my preference for gas is over corded, but battery operated is becoming a very viable option. When I was young my father had a corded trimmer that i found annoying and always thought I would get a gas powered one when I had my own yard. I would advise that anyone wear earplugs when using a gas powered trimmer or blower.

The Ryobi is surely not the highest quality trimmer on the market, but it works for me.

edit: This is the tool you need to adjust the carburetor