I really don't care if you removed the spark arrestor. Shouldn't film it though. Depending on your state it could be a hefty fine. I used to work at a Stihl dealer as thier mechanic. I'd use a propane torch to burn all the carbon out of the spark arrestor and put it back in.
Soo much carbon, it literally had changed the damn exhaust timing on the floor and roof of the exhaust port. But it Still didn’t sound like it’s getting full RPMs. I know it’s just a 22cc trimmer but I would be willing to bet a ultrasonic cleaning on the carb, and a carb kit would have gotten the full potential back out of this trimmer.
Best tip I received was a phone gimbal to take smooth video with. $180 brand new. He did tech reviews and received lots of stuff for free and was very nice to give me that. I’ve taken some great shots with it
I work at a motorcycle shop and have to cut chains on a regular basis I take a grinder and grind the nipple down For the roller pin And then they press them out It's a lot easier on your press tool Or your punch tool or if you're in a pinch you can grind the tits down turn the chain sideways and pop the link off with a flat head screwdriver or a chisel
