I have a Husqvarna 350 52cc chainsaw, #4HVXS.0525AA. The saw ran like a top for the first couple of years. then the muffler loosened. From what I have read since then, Husqvarna has had a continued problem with this model. I took the chainsaw to a Husqvarna repair shop, and the serviceman tightened the muffler. Within weeks, the muffler loosened again. In talking to the repairman, he confirmed that Husqvarna had dealt with the problem by offering a refit. So, I trusted that this would work, had the repairman to the work, and after paying over $100 for the repair, the muffler loosened within weeks. In calling him, he told me that other than tightening it again, he had no answers because Husqvarna had no other answers. Since that point, the muffler has loosened again to the point that the chainsaw housing melted into the oil reservoir, causing irreparable damage. I believe that Husqvarna is at fault here, for I have done all that was possible in following Husqvarna's guidelines. I realize that the chainsaw is no longer under warranty, but this situation would not have developed had the chainsaw been engineered properly. In reviewing other customer complaints, I see no other Husqvarna chainsaw with this recurring problem. I am not seeking a new saw, for I have gotten a couple of good years out of it, but I would love to buy another Husqvarna saw. I am requesting a coupon for a good percentage off a new saw. Thank you for your consideration.