This manual covers the Vanguard V-twin engine, a powerful gasoline engine known for its robust construction and reliable performance. Designed for demanding applications, this air-cooled engine features electronic ignition and a carbureted fuel system, often paired with an electric starter for convenient operation. With a gross horsepower of 18, it is engineered to deliver consistent power and durability across a wide range of uses. This comprehensive 191-page English-language workshop manual provides detailed instructions, top-quality diagrams, pictures, and illustrations to facilitate accurate repair and overhaul procedures. It includes essential technical specifications, component and system function explanations, and guidance on maintenance tasks such as air filter service and spark plug specifications. By following the step-by-step instructions, owners and technicians can effectively maintain and repair their Vanguard engines, saving time and minimizing errors.