Clymer Publications, Arleta, California.British Seagull: Service - Repair Handbook. 2 to 6 hp Models: Forty Featherweight, Forty Plus, Century 100, Century, Silver Century, Century Plus, Silver Century Plus. A complete and detailed maintenance, troubleshooting and repair guide with step-by-step text and photographic instructions. Soft cover, hundreds of black and white photographs and illustrations, 146 pages.Worn covers content clean.Steve 250-479-8348