This comprehensive service repair manual covers Harley Davidson Knucklehead and Flathead motorcycles manufactured from 1940 to 1947. It offers detailed instructions and illustrations to guide you through various repair procedures, enabling you to save money by tackling repairs yourself.

The manual includes a Trouble Chart for quick diagnosis, guidance on initial servicing of a new motorcycle, engine lubrication and overhaul, electrical system troubleshooting, carburetor servicing, transmission maintenance, wheel and hub repair, fork, frame and handlebar adjustments, and sidecar maintenance. Specific models covered include the 61 cu. in. (1000 cc) Overhead Valve engine, 74 cu. in. (1200 cc) Overhead Valve engine, 74 cu. in. (1200 cc) Side Valve engine, and the 80 cu. in. (1300 cc) Side Valve engine.

With clear step-by-step instructions and numerous illustrations, this manual makes even complex repair tasks accessible to anyone, regardless of their mechanical expertise. The comprehensive index allows you to quickly find the information you need.

The 1940-1947 Harley Davidson Knucklehead and Flathead Service Repair Manual is an essential resource for owners and enthusiasts of these iconic motorcycles. This manual provides comprehensive instructions and diagrams for maintaining, repairing, and restoring these classic machines. Covering both the Knucklehead and Flathead models, it addresses a wide range of mechanical aspects, including the engine, transmission, electrical system, chassis, and more. The manual features detailed illustrations, exploded views, and step-by-step procedures, making it easy for even novice mechanics to understand and perform repairs.

From adjusting the valve timing to rebuilding the carburetor, this manual covers everything you need to keep your Knucklehead or Flathead running smoothly. It also includes valuable troubleshooting tips and specifications, ensuring you have the necessary information to diagnose and resolve any issues that may arise. The 1940-1947 Harley Davidson Knucklehead and Flathead Service Repair Manual is a valuable tool for anyone who wants to maintain or restore their classic motorcycle. Whether you're a seasoned mechanic or a first-time owner, this manual will provide the guidance and knowledge you need to keep your motorcycle in top condition. Owning and maintaining a classic motorcycle like a Knucklehead or Flathead is a rewarding experience, and this manual is the key to ensuring that your investment remains in pristine condition for years to come.