For years now it has seemed to at least me that it was impossible to shut off a Kohler engine without the signature backfire. I can remember way back when I used to flinch a little when I wasn't thinking what I was doing. I have used 3 different mowers with the Kohler on them. A 16 a 25 and now a 27. It was just something I had come to live with. Today was a new day however thanks to some advice I got from Puppypaws here on lawnsite. He recomended shutting the mower down at half to full throttle that this is what Kohler instucted for their modern carb equiped engines. This was of course unnatural to me because like many of you I was always told power down to idle before you kill it. That was the advice from the oldhands. "Thats just what Kohler's do." They would say. I have read many give their opinions on this site how to stop it, none had succeeded til today. So my sweat stained hat is off tonight to the man who loves his dogs. I no longer anticipate the annoying pop at the end of a long days work and the folks around the commercial accounts I have on the risky side of town don't have to duck and cover when i power off on the trailer anymore.