Hi, this is my first time posting here. I have a D125 riding mower with only about 70 hours on it. Won't turn right, sector plate pops, but will turn left just fine. I'm just not sure if a worn sector plate and/or pinion gear is the culprit. When I turn left, the sector plate seems to ride up the pinion gear and get a good bite. When I put the wheel to the right, the opposite happens, seems like the sector plate drops down the pinion and loses good bite. There's a whole lot of untouched pinion length as well that I wish I could put to use. I'm wondering if the geometry/setup of the whole system is correct, before I send it in for service. I don't have the means to fix myself. Below is a quick 30 second video of how the sector plate behaves when turning left vs. right while stopped.
If the answer is take it in for new pinion/plate, fine so be it, I just want to make sure I'm not missing something more obvious and/or inexpensive.