Originally Posted by IS500Z
The only differences between the IS500Z and the IS1500Z are deck and engine choices. Do you really need an engine rated for 2000 hours to mow a couple of acres and put on perhaps 100 hours per year? Routine maintenance on any engine can go a long way to preserving its life. I have a collection of old 2T Lawnboys that have been cutting grass for 30 years or more. I am sure none of them would be considered 'commercial' grade what ever that actually means. If commercial grade means used by commercial cutters a Walmart special thrown into the back of a rusting Ford pickup is commercial grade.
I sold my Lawn tractor and Hustler Minifastrak year ago and both had residential engines. The tractor had a Kohler 20hp single cylinder courage and the Hustler had a Kohler 17hp single cylinder courage. As I said I used these machine for a few years and sold them both years ago and they are both still running fine! I know what I have learned over the years and If I did not find my Superduty for the price I did, I was most likely going to get a new MZ or Sport and most likely would have gotten the Briggs engine, unless I got a deal with the Kawi. For 30-50 hours a season, just no point spending the money for an acre!