I have a 1992 8HP Troy-bilt HORSE tiller. It has a 8hp Kohler Magnum engine. When and if it ever wears out I want to repower with a 10HP HONDA engine. Anyone have any expericence with this? The 10HP HONDA weighs almost exactly the same as the Kohler so the balance of the tiller will remain the same. The only problem is the old Kohler will not wear out. Hope to get lots of ideas from you guys. thanks!