Well, I went to pick up my mxz 670ho from the dealer due to it not reving up properly. The cleaned the carbs/fuel system and said it was ready to go (209.00). When I got there the sled would not move (same problem). Now they think it has something to do with the DESS post. I tried to tell them that when I brought it in. I took a day off of work to get the sled, so I am out gas, overtime, and more $ to have to initial problem fixed. Not a good day!