1992-1998 Kawasaki PWC Jet Ski Service Repair Manual., Page 282Get this manual
CONTROL ADJUSTMENTS
CAUTION Water must circulate through thejet pump to and from the engine, anytime the eng operatingCirculating water will prevent overheating which could cause damage to moving engine parts and possible engine seizure-
10- With the engine operating, hold the handlebar in the "deadahead"position; advance the throttle and observe if the bow tends to veer to port or starboardIf the bow remains unmoved, the adjustment is accurate task completed