Hi Guys, I am not horribly concerned but thought I would throw this out there. I have a 2008 PG Magnum with the Honda GX200 engine. Ever since I bought this machine 2nd hand, when I pull open the throttle above 3000 RPM (to the max 3450) the engine 'pulses' or in other words, the throttle seems to pulse back and forth instead of holding a steady level. I can reach down by the engine and hold the cable steady and this will take the pulse away....but when I let go it oscillates back and forth from the carb. What might be going on here? Bad plug? Carb need clean?