I have a John Deere 110 SF with an 8 HP Kohler. When I first got it, it ran fine and I mowed quite a bit with it. However, I've been having issues with it lately. I can start it up when it's cold and it will run and mow for a few minutes. Then, when it gets under a pretty decent load, it starts to sputter and gradually gets worse to the point where it nearly dies. Then, I can turn the deck off and run it just fine for a couple more minutes until it gradually gets worse and eventually dies. I can then start it back up and it will run for just a few seconds before it dies again. I think it's either starving for fuel (carb issues) or the coil is getting hot and breaking down and needs a new coil. I'm going to try to spray ether in it when it starts to sputter to see if it speeds up when I do that. I may just take the carb off anyway to see what it looks like, but just wanted to see if anyone else has had similar issues so that I could possibly get a better idea of what the issue is. Thanks.