Hello I'm "new" to the site. I have been on the past few weeks just reading all info I can. But this is my first post now. I picked up a stihl 028 av wb at auction for 100 bucks. I prlly would have never picked it up if it wasn't for this site. It somewhat runs. It idles fine but when at WOT it just loses all power and dies. I have cleaned out the high and low settings with carb cleaner and set back to 1.25 turns. The muffler was just plumb full of carbon. Had to soak in parts washer to get clean. My compression tester is broke so I'm not sure there. I'm wondering if maybe I need to rebuild the carb, replace fuel, and impulse lines. Hopeing it's something small otherwise it will have to wait. Ive got a 372 on the bench at the moment. Any thoughts would be great.