I have a gravely 52" with a 23 hp kawasaki engine fh680v and I have changed plugs , carb, fuel pump,and coils. Ive also gapped everything and still the same outcome. I,ve also checked for frayed wires and bad gas to the same end. Can someone give a heads up on this particular problem. It will start like nothing's wrong but as soon as I give it gas the engine shuts down like it's starved for gas. I'm at a loss with this one . Help!