I have a Kohler Engine on my Grasshopper and haven't had any problems other then a seal. I am looking at getting a Huslter Super Z. Both dealers that do the most volume in my area don't even carry the Kohler's. They won't even sell them. One guy said when he used to carry JD he saw too many come back with the rod sticking out the side. I have found a nice 2004 Super Z 60" with the 27hp Kohler and 90 hours for $5800 which is a good savings over new. I am now just scared of the Kohler since both dealers won't even sell them. Is there really a problem, are the Kawasaki and Honda's really that much better?