1992-1998 Kawasaki PWC Jet Ski Service Repair Manual., Page 8Get this manual
PRINCIPLES OF OPERATION
Chsection line drawing to depict water flow through an axial flow jet pumpThe water passes through parallel to the axis of impeller rotation
Kawasaki watercraft are equipped with an axial flow jet pump, except the Model 550 which has mixed flow pumpsee Chapter 10, Axial Flow Water in an axial pump moves on single axis, as depicted in the adjacent illustration -thus the word "axial" is usedIn simple layman's termswater is ingested and discharged parallel to the axis of impeller rotation, as shown1-3 ENGINE AND JET DRIVE
water into an opening in the hull through suction and intake castingOnce the craft has
attained forward motion the intake also serves as "scoop" adding to the volume of water moved through the pumpVolume and Velocity