I am looking at a mower with this engine, and wondered if it is any good at all. Is it fairly reliable, or is it known to be trouble prone? I have had nothing but 15 and 17HP Kawasaki's on my mowers so far, and was looking at this one just because of the really good price. I would plan to replace it with a Kawasaki or Kohler once it wears out, but wondered if this would be fine for now. Thanks alot.