I have a Yanmar 276D, its about 15 years old and I used it just for mowing, It is setup with a 60 inch belly mower and turf tires (my "real" tractor is a JD5410). Nothing bad to say about the Yanmar, but I doubt it is related to any of the newer Yanmar machines...also, I don't beleive they are made by John Deere...actually it was my understanding that Yanmar made a lot of the smaller engines for Deere tractors, not the other way around.