Product Description This is a service manual for the SR400/SR500. New service manuals are quite expensive. From engine disassembly and assembly methods to detailed wiring diagrams, it covers everything about the SR400/SR500, including detailed tightening torques and appropriate amounts of fluids. This product is a reproduction of the initial service manual. Service manuals and parts lists are very helpful during maintenance. A valuable document published in Showa 53 (1978). - Brand: YAMAHA - Model Name: SR500/400 - Publication Date: Published April, Showa 53 (1978), Reprinted September, Showa 58 (1983) - Product Number: 2J3-28197-00 Thank you for viewing.