When I first got this mower I loved it. It started easily and the speed was great for getting the lawn mowed quickly. After a month or two a vibration developed and began to shake the whole thing apart. The two screws that hold the motor cover on came off, one of the bolts in the muffler came out, I've tightened the torx bolts in the frame and have lost one. I got on the Sears website and looked up some troubleshooting tips. I was directed to replacing my blade. I did that and it helped a bit. I finally took it into the store when I bought it and the young man assured me that it was still under...
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