Outinthewoods is correct, my 592 xp does not have an adjustable carburetor. I have also read the operators manual again, and again and it still would lead me into thinking my saw is adjustable, when it clearly is not. I also noticed the magnet inline after the fuel filter on the rubber fuel line inside the fuel tank. Easy to service drive sprocket rim, clutch hub bearing and oil pump. They sure could put a better manual together for the saw owner. Can a service manual be purchased?