Anyone familiar with this mower? I picked this one up for free off the curb, don't need it, and hoped fix it up either to resell or give to charity. Looks like the mower set for a long time full of ethanol gas - ugh. A new ($22) carb, oil change, and blade sharpened has it running fine. All looked great except that the self-propel did not work. Removing the rear drive wheels revealed that the aluminum woodruff keys for the axle-to-wheel drive gears were powdered. I got a new drive gear set ($18) off Amazon but have had to guess how to reassemble. Now I cannot easily push the mower around and there is a ratcheting sound out of the drive wheels. Once running, the mower will sort of propel itself around. I thought I put those drive gears on correctly, my best guess, but will try flipping them over. 'Course I think this rear wheel drive system is one horrible design. Again, any one else fight one of these.