Hi All, I'm having an odd issue with my Lesco, it has a kawasaki 25 hp. Starts and runs fine, can run it around on full throttle as much as I want. After turning on the blades and cutting for a few minutes it will intermittently sputter and pop for 5 to 10 seconds then clear itself up and be fine for another few minutes but then it happens again. This scenario happens over and over. Doesn't matter what temperature the engine is or what the outside temp is. I'm not 100% positive but I could swear it happens after making a turn and heading back up the yard. I've replaced the fuel lines and filter, cleaned the carb and fuel pump and replaced the spark plugs. I'm not really sure what to make of this. Any ideas? Engine only has 72 hours on it.