2004-2006 Kawasaki 900 STX Jet Ski Service Manual, Page 16Get this manual
GENERAL INFORMATION 1-9 Technical Information Kawasaki Smart Steering System (Carburetor Type)
Outline The Kawasaki Smart Steering system provides turning action under certain conditions when the throttle is releasedThere must be thrust at the jet nozzle to initiate and complete turnsThis is supplemental steering system which assists operators in learning to negotiate turns and maneuverThe Kawasaki Smart Steering system continuously detects the operator's steering input as well as the boat's speedWhen the throttle is released while boat speed is high and turn is initiated, the smart steering system automatically increases engine speed to provide additional thrustThe system does not work when the engine is off or the boat speed is low