When it comes to collector motorcycles, none hold the allure of the classic Harley-Davidson Big Twins built from 1936 to 1964. But owning and maintaining these tempermental machines provides endless challenges. Even the most pristine, restored example needs a tremendous amount of care, maintenance, and repair. The rebuilding and restoring of these machines is not so much a defined task as a never-ending process. This book serves to guide owners through that process.