I just got back my 21' Toro Pro-Line from the dealer. This is what they did. New piston,rings,crank seals,bearings, and muffler. Complete rebuild. They said they were going to turn everything into Toro, but the air filter and blade adapter which I had to pay for. Different story from the first one they told me that Toro would not fix it because it was my FAULT that it was all carboned up. I only use this mower maybe an hour a week anymore, not at one time either. So since it's FRESH should I sell it and buy a less expensive LB 2 cycle for the ditch banks and small hill I use it on or keep it? They are telling me that I'm not getting it HOT enough to BURN off the carbon. So help me out here guy's, what would you all do if you were in my SHOES? Thanks, Mowman P.S. This was all under the two year warranty period, had 2 weeks left. Thank GOD!!!!!!!!!!