Stihl MS 261 chainsaw with new GB 20in. titanium pro bar and full skip yellow dot stihl chain. Fully disassembled-cleaned-replaced parts as needed and reassembled. New piston and rings-just because, new coil-a little weak, and spark plug. Carb got a new diaphragm kit and added an outside spike to chain cover. Cut a 18in. log to test and it cuts like butter. All adjusted and ready to go-come bye and check it out. thanks