sounds like the governor set up is all out of whack & the needle screw setting. The screw on the arm that moves is the idle set stop screw

Photos would be good to see.. Base setting for needle jet screw is 1 1/5 to 2 turns open from full closed as a start point..

Last edited by SuperDooper; 22/10/15 08:21 AM.
Regards,
Paul

Such is life.......
Nothing better than a "GreenField" just mowed..