The Kawasaki FH381V-(D)S01-S is a 0.43 l (431 cc, 26.3 cu-in) V-twin 90° air-cooled 4-stroke internal combustion small gasoline engine with vertical shaft. The Kai’s are the newer series engine. The Japanese word “KAI” means evolution, advancement and renewal. The FH381V KAI engine is based on the FH381V motor, but it has some changes such as: redesigned air cleaner and blower housings, new air filter options, internally vented carburetor, an advanced lubrication system design, and enhancements for optimal startability.
