This is a 1986 vintage Yamaha MF410S & MF410SR multi-purpose engine service manual. Published in 1986 as a stated 2nd printing by the Yamaha Motor Corporation this 51 page softcover manual measures 8 1/2" by 11" and it contains illustrations, specifications, part numbers and detailed text covering the repair and maintenance of the Yamaha MF410S & MF410SR multi-purpose engines.