I picked up new MS 180 this morning and got around to using this afternoon. The wife and I headed for the back pasture and fired it up and cut about 6 pieces of Oak about 6-7" in dia. of a tree that went down in the spring in a storm. It zipped right through them and thought man this thing cuts pretty good for a little saw. Then all of a sudden it wouldn't rev past half throttle, it would bog like it wasn't getting gas, in or out of the wood. It idles fine. Man I was pi$$ed. They fueled it up at the dealer and started and made sure it was ok and oiling good. I thinking maybe something has clogged a jet on the carb. I've bought 3 or 4 saws from this dealer over the years and I hope he can make things right. I've never had to take one in for service. I bought it mainly for my wife as she wanted something she could use occasionally. She says she's asking for a new saw. Does Stihl have some sort of a 7 day return deal? It would be great for me too as my back went out over 2 years ago and I had to sell all my bigger stuff. I'm just getting back to a point where I feel I can cut some firewood and stuff.