This digital workshop repair manual covers Kohler K91, K141, K161, and K1181 engine series applicable for all years. These single-cylinder, air-cooled gasoline engines are known for their robust construction and reliable performance, making them a popular choice for various applications. The K91 offers approximately 3-4 HP, the K141 provides 5-6 HP, the K161 delivers 6-7 HP, and the K1181 produces 7-8 HP, with displacements ranging from 143 cc to 297 cc. These engines feature magneto ignition and float-type carburetors, designed for durability and efficient operation. This comprehensive English-language manual provides detailed information essential for maintaining and repairing your Kohler engine. It includes A-Z repair procedures, diagnostic procedures, and technical specifications, supported by high-quality photos, illustrations, and diagrams. The manual is designed for professional technicians and mechanics, as well as owners seeking to understand and manage their engine's upkeep. By following the guidelines within this manual, users can ensure optimal performance, longevity, and cost savings on service and repair.