2003-2005 Kawasaki JetSki Ultra-150 Factory Service Manual, Page 236Get this manual
ELECTRICAL SYSTEM 14-35 Ignition System
Throttle Sensor Input Voltage Check Remove the throttle sensor [A] lead connectorSet the tester [B] to the DC 10 range, and connect it to the connector [C] of the main harness
Special ToolHand Tester: 57001-1394 Hand Tester (+) BlackBlue Lead Hand Tester () Black Lead
Turn the ignition switch onvoltage Check the throttle sensor input
Throttle Sensor Input Voltage Standard: around DC V
Check the above process within three minutesIf it is not the specified voltage, check the igniter input voltage between Orange lead and BlackWhite leadIf there is battery voltage between the leads, the igniter is defectiveTo check the throttle sensor output voltage, see throttle sensor Inspection