2003-2005 Kawasaki Ultra-150 Jet Ski Factory Service Manual., Page 23Get this manual
1-18 GENERAL INFORMATION Technical Information-Propulsion System 1Pu mp
Two kinds of pump are used in PWC for propulsionThe JH1200-B1 has mixed flow pumpThe mixed-flow pump is compact with high-capacity, and it delivers more efficient propulsion for improved acceleration and performance