I inherited a well-maintained Yard Machines 6HP self-propelled mower from my home's pervious owner. It's loaded: electric start, convertible bagger, all the goodies.
But the self-propelled speed is VERY SLOW. Good for a 75-year old man shuffling along, but for me at 27 it's kind of taxing. Holding in all the levers is actually starting to hurt my wrist after 45 minutes! Even my dad at 57 decided "this thing sucks. Lawn mowing should be fun!" I agree.
Any way to make these things move faster? Gear changes, etc?