I just repowered my horse with the Kohler ch-270, 7 hp, 208cc, which is an awesome little motor. That being said, has anyone else used this and or a similar size motor. I have clay and I feel that this motor is not sufficient. The old briggs 7 I/C would just bear down and dig deeper, this motor stalls out and even was knocking when tilling. And no the oil sensor is not the problem. I'm looking for a Honda gx 240 or 270 but they come with a 1" inch shaft. I see different people have put these on a troybilt so I was wondering what they did to make it work? Cut and rekey the shaft, bore out the pulley, is there an aftermarket 1" pulley?