What kind of implement and which John Deere yellow? There's the yellow that complements the green and there's construction yellow seen on excavators and such.
From what I've seen, Deere finish mowers and snowblowers are yellow. Rotary cutters and just about everything else is green. The newer "7 iron" MMM decks are green. I can't remember ever seeing a green rear mount finish mower /forums/images/graemlins/smile.gif
I asked just about that same question of my jd dealer. This was on a 4110 w/a greem mmm. I asked him why it was green and he told me the newer ones come with green now instead of the traditional yellow.