flomanno,
I have the same tractor and haven't experienced that problem. Are you sure the throttle isn't jut a little tight and can be turned a little more?
Jason
I don't know about the 3010,, but on most tractors there's an adjustment on a throttle linkage rod; loosen the jam nut, adjust, and tighten the jam nut again; very simple. I don't know whether that's your problem, but that's the first thing I'd look for.