The Knucklehead, produced from 1936 to 1947, represents a significant milestone in the evolution of American V-twin motorcycles. Known for its innovative overhead valve design, which succeeded the earlier Flathead models, the Knucklehead offered enhanced performance and reliability. Available with engine displacements of 61, 74, and 80 cubic inches, these motorcycles were engineered with robust construction and a distinctive aesthetic, making them highly sought after by riders and collectors alike. This era of motorcycles is celebrated for its foundational contributions to the brand's legacy of powerful, American-made machines.
This comprehensive Factory Service Manual (FSM) provides detailed technical information for Knucklehead models applicable from 1940 to 1947. It covers a wide array of systems, including engine top end, lubrication, crankshaft, transmission, fuel, ignition, drivetrain, chassis, suspension, and electrical systems. The manual offers in-depth coverage of routine maintenance, adjustments, troubleshooting, diagnostics, and step-by-step repair and rebuild instructions for both Overhead Valve (OHV) and Side Valve (SV) engines. Designed for professional technicians and experienced mechanics, this manual is an essential resource for maintaining, repairing, and understanding the intricate workings of these classic motorcycles.
Harley Davidson Knucklehead Service Manual
Software Database Instant Download
This is the official FSM
Applying to the following Harley Davidson Motorcycles 1940 to 1947 inclusive
OHV Engine Models 61 Cu. In (1000 c.c.), 74 Cu. In. (1200 c.c.)
Side Valve Engine Models 74 Cu. In. (1200 c.c.) 80 Cu. In. (1300 c.c.)
This Service / Repair Manual is a professional book in which you can get a better understanding of your bike. It contains comprehensive instructions and procedures of high quality on how to fix the problems in your bike, which can save you a lot of time and help you to decide the best way of doing repairs with ease.
THIS IS THE SAME TYPE OF MANUAL USED BY TECHNICIANS AT YOUR LOCAL DEALERSHIPS TO MAINTAIN, SERVICE, DIAGNOSE AND REPAIR YOUR BIKE.
FAQ: What type of information is covered?
This manual contains all the information and diagrams for all service and repair procedures. Genuinely the types of information covered include;
General Information
Fuel System
Cooling System
Engine Top End
Clutch
Engine Lubrication System
Engine Removal/Installation
Crankshaft/Transmission
Wheels/Tires
Final Drive
Brakes
Suspension
Steering
Frame
Electrical System
Appendix
FAQ: What format is the download file in?
The download file is a RAR file, you need "WINRAR" installed to extract it. You can download from here:
FAQ: What if I have problems downloading?
When downloading large files (if using IE download directly) you may experience timeout sometimes. If this happens, I suggest using a download manager (Flashget, etc.) to avoid this.
If you still have download problems, please contact TBTBTB at:
Format: PDF
Language: English
Harley Davidson Knucklehead Service Manual
Software Database Instant Download
This is the official FSM
Applying to the following Harley Davidson Motorcycles 1940 to 1947 inclusive
OHV Engine Models 61 Cu. In (1000 c.c.), 74 Cu. In. (1200 c.c.)
Side Valve Engine Models 74 Cu. In. (1200 c.c.) 80 Cu. In. (1300 c.c.)
This Service / Repair Manual is a professional book in which you can get a better understanding of your bike. It contains comprehensive instructions and procedures of high quality on how to fix the problems in your bike, which can save you a lot of time and help you to decide the best way of doing repairs with ease.
THIS IS THE SAME TYPE OF MANUAL USED BY TECHNICIANS AT YOUR LOCAL DEALERSHIPS TO MAINTAIN, SERVICE, DIAGNOSE AND REPAIR YOUR BIKE.
FAQ: What type of information is covered?
This manual contains all the information and diagrams for all service and repair procedures. Genuinely the types of information covered include;
General Information
Fuel System
Cooling System
Engine Top End
Clutch
Engine Lubrication System
Engine Removal/Installation
Crankshaft/Transmission
Wheels/Tires
Final Drive
Brakes
Suspension
Steering
Frame
Electrical System
Appendix
FAQ: What format is the download file in?
The download file is a RAR file, you need "WINRAR" installed to extract it. You can download from here:
FAQ: What if I have problems downloading?
When downloading large files (if using IE download directly) you may experience timeout sometimes. If this happens, I suggest using a download manager (Flashget, etc.) to avoid this.
If you still have download problems, please contact TBTBTB at:
Format: PDF
Language: English
