Walmart offers the Sportsman 1,400-watt Portable Gasoline Generator for $149 with free shipping. That's a buck under our mention from four weeks ago and the lowest price we could find by $29. This generator runs on unleaded gasoline and features a: 3.5-horsepower engine 3,600 RPM recoil start 2,000-watt surge 9-hour runtime at 50% capacity