Hello guys, I just used my blower to blow some bamboo leafs from the side walk and since it is getting dark I notice when I finish that the tip of the muffler is red hot, able to lit a cigarette with it, rest of the muffler was OK and this is the only equipment I have seeing it has the screen you guys mention, so check the blower, after I turned it OFF waited a few minutes, I started it again, starts flawlessly, it could be the mixture? or what? Mixture is with the bottle it came with the blower Craftsman Professional Synthetic 3.2ONZ to a gallon of fresh gas wish I added StaBil. It has 2 year warranty in engine and carb only. (it only has less then an hour of use) Craftsman Blow/Vac A friend told me it was OK because it was at the end of the muffler, not where the muffler connects to the exhaust port......he also mention to remove the screen it will not turn red. Thanks in advance TURBO.