I have decided on 61" Scag Cheetah and now I have to make a choice between the Kawasaki 31 HP FX850V or the Briggs Vanguard 32 HP 543777 engine. The Vanguard is $85 less than the Kawasaki so cost is not an issue. Does anyone have any experience with these engines to be able to do a good nut and bolt comparison. I have always owned Kawasakis and have had no complaints. The one think I like about Kohler is the hydraulic valves that require no adjustments but neither the Vanguard or the Kawasaki have this. I have heard that Briggs can not shake a bad reputation from their other engines even though the Vanguard is made in a partnership with Daihatsu which is owned by Toyota. Some of the items to consider are: 1. Parts cost and availability 2. Ease of repair 3. Durability and life expectancy 4. Power and torque performance 5. Fuel efficiency 6. Known problems/issues 7. Machine resale value with either engine Lastly, the Cheetah with the Vanguard does not have all of the EPA Phase 3 fuel tank junk since it was built before 1/1/11. Thanks for your help.