This service repair manual covers Kohler PCH680 and PCH740 engines, designed for propane electronic fuel injection applications. These engines are engineered for robust performance and reliability, suitable for various demanding tasks. The manual provides comprehensive information to ensure proper operation and longevity of these advanced power units. This English-language manual, spanning 88 pages, offers detailed text sections accompanied by diagrams, pictures, and illustrations. It is intended for the repair and overhaul of the PCH680 and PCH740 engines, covering step-by-step repair instructions, fault-finding procedures, and essential specifications and tolerances. Understanding component functions is also explained, equipping owners and technicians with the knowledge to maintain and repair these engines effectively.