Bringing this up just for the hell of it : looking over some old posts , and came across this quote : " Your average 4 stroke motor was rated at 500 engine hours, were the 2 stroke motors were rated at 200-250 engine hours of life expectancy before requiring major repair " I`m a big 2 cycle fan . I had a Toro mower with Suzuki motor , from 1989 until 2011 , 5/8 acre , 70 -75 minutes each time . Averaging 26 per season , I figure around 700 hours , and was still running when I sold . I`m thinking my Duraforce Lawn Boys capable of the same . Any thoughts ?