The reason that it does this, is your tiller is too light. There isn't enough weight to make the tiller dig without lifting the tires up and running on the tines. MTD owns troy-bilt now, and has made them light and cheap like the rest of the MTD lines. Your best bet is to add additional weight to the front, back, and you can even add weight to the tires if you wish. The easiest way is a rock or piece of concrete on top of the handle where the handle meets the engine. I mixed up concrete and cast it onto the front guard, put some in a plastic garbage bag and hung it in that same place I described for a rock, and let it set there. Then I took off the bag, and I have a form-fitting rock that can be removed if you wish. The extra weight will keep the wheels down, and make the tiller more manageable.
Answers & Comments
The reason that it does this, is your tiller is too light. There isn't enough weight to make the tiller dig without lifting the tires up and running on the tines. MTD owns troy-bilt now, and has made them light and cheap like the rest of the MTD lines. Your best bet is to add additional weight to the front, back, and you can even add weight to the tires if you wish. The easiest way is a rock or piece of concrete on top of the handle where the handle meets the engine. I mixed up concrete and cast it onto the front guard, put some in a plastic garbage bag and hung it in that same place I described for a rock, and let it set there. Then I took off the bag, and I have a form-fitting rock that can be removed if you wish. The extra weight will keep the wheels down, and make the tiller more manageable.