Suffolk Punch 14sk Self Propelled Lawn Mower (kawasaki Engine)

Suffolk Punch 14SK Petrol Self-propelled Cylinder Lawnmower, 14 Cylinder Cassette, with roller. Interchangeable cassette system (Sorry No scarrifier cassette available) Not used for about 12 months so could do with a service.Does work but had intermittent drive issue, sometimes does not stay still? Otherwise In a Good Overall Condition, with a few minor cosmetics. Main reason for sale (apart from not enough time to do repairs) is lawn is too uneven. I think it just needs someone who knows whats what and it ll be a fantastic mower again. Thanks for Looking.