Craftsman 917274350 Service Manual. Made by Sears manufacturing, the craftsman 917.274350 is a 16hp 42″ cut lawn tractor or riding mower with a 6 speed transaxle. View or print the Craftsman 917274350 Service Manual below. The manual will cover most questions you have about the model 274350 including maintenance schedules and parts locations. If you need parts, manual buddy suggest checking out Sears Direct.