Yanmar has developed its EY series of large marine diesel engines that feature low fuel consumption and excellent durability based on the concepts of "raising life cycle value for the customer" and "harmony with the global environment". https://www.yanmar.com/global/about/technology/technical_review/2017/0127_2.html | Yanmar Global

Launched in 1952, the K2 engine hails from the venerable K-Series of Yanmar engines. So named for the Japanese word "karui" meaning light and the German "klein" meaning small, the K-Series eventually comprised engines from 1.5 to 7 hp to suit the varying needs of farmers. Here we see the engine run at an May 12 event for engine enthusiasts held in Nagano Prefecture, Japan | Yanmar Global