My LX 277 with 17hp Kaw runs very rough for the 1st 1 to 2 minutes after starting. It then smooths out and runs runs fine until I engage the blades and it does the same thing almost to the point of stalling. After initially running very rough for 1 to 2 minutes with the blades engaged it runs good. I removed the carb, disassembled and cleaned it but still have the problem.
Thanks
Thanks