I have a Kohler SV590 in my Cub Cadet. After it runs for about 10 minutes, it starts to sputter and exhausts blueish smoke. I pulled the air cleaner and it had oil in the area and getting sucked (I assume) into the carburetor via the line coming from the valve cover. I pulled the valve cover and everything seems right. (No oil). When it started doing it again, I pulled the line from the valve cover and even though the motor didn't sputter, excessive oil was being sprayed onto the front of the motor. Any suggestions? Thanks, Chuck
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