Okay, thanks.
A little more help, please. The Honda HRB216TDA, pictured above, had the forward drive stop working yesterday. The symptom was that the drive would not disengage when turning around, so I stopped mowing, and then I went to troubleshoot the issue. At that point, there was no wheel drive at all. I took the bottom housing apart today and checked the drive cables. The handle drive cable still works. I made cable adjustments and still nothing. My guess is a bad speed 1, 2, 3, speed selector cable? It has a bit of rust coming out of the plastic cable cover in one spot. I need to figure out how to install a new cable or how to remove the old one.