Just bought this thing used 250 hours classic 2750. I'm not sure how the seat switch works but sometime you can get off with the blades running and sometimes you can't and I don't think that is the way that it is supposed to be. I would think the blades have to be off to get off the mower without it shutting off. Another thing after it has ran for awhile and you shut it off it doesn't want to start back up. I havn't used this mower this is just what my Dad has told me. I bought a business and the mower came with it and I don't know anything about dixie choppers. It sounds to me like it's not getting spark because my Dad said he could smell gas after he cranked it a few times. He did say when he went out to mow with it that it fired right up without hesitation. Any help would be great.