This manual covers the Yanmar LP NG137, a versatile machine designed for various applications. While specific production years are not detailed, this model is engineered for reliability and performance, utilizing LP Gas or NG fuel for its operations. Its robust construction and efficient design make it a dependable choice for demanding tasks. This comprehensive manual provides essential information for the upkeep and repair of your Yanmar LP NG137. It includes detailed parts catalogs with part numbers, step-by-step repair procedures, and clear illustrations to guide you through maintenance, rebuild, and restoration processes. The manual is designed to assist owners, mechanics, and technicians in ensuring the optimal performance and longevity of the equipment.