The John Deere 340 Cyclone, produced between 1972 and 1977, represents a robust and reliable machine engineered for demanding applications. Featuring a 2-stroke, fan-cooled engine with approximately 339cc displacement and 29 horsepower, this model is equipped with an automatic transmission utilizing a torque converter and offers forward, neutral, and reverse gears. Its sturdy construction, with a dry weight of around 375 lbs, and typical leaf spring suspension, along with disc brakes, ensure dependable performance. The 340 Cyclone is designed to meet the challenges of its intended use, embodying John Deere's commitment to quality and durability. This comprehensive Service Repair Manual, written in English, provides in-depth information essential for the maintenance and repair of the John Deere 340 Cyclone. Covering all styles of this model, the manual details critical procedures, technical specifications, and troubleshooting guidance. Owners, mechanics, and technicians will find valuable insights into engine operation, transmission systems, lubrication, and electrical components. With hundreds of pages of detailed instructions and diagrams, this manual serves as an indispensable resource for keeping the 340 Cyclone in optimal working condition.