the problem is mainly acceleration. It will bog down and die shoving it home under no load. If I'm easy on the throttle, it doesn't stumble. Under a load, with PTO on, it seems fine.So at high idle under load is sounds good? WOT on a governed engine is when the engine is under heavy load and losing RPM. If the engine runs fine with the PTO engaged, then the idle jet likely is incorrect for this engine or debris in the idle circuit. The engine has no purpose at mid-throttle anyway. If it doesn't surge and runs fine while mowing, that is what you want.