2005 Kawasaki STx-12F Jet Ski Factory Service Manual., Page 330Get this manual
14-18 ELECTRICAL SYSTEM Electri cal Wirin g
Wiring Inspection
s Vtic.ually inspect the wiring for signs of burning, fraying, If any wiring is poor, replace the damaged wiringPull each connector [A] apart and inspect it for corrosion, dirt, and damageIf the connector is corroded or dirty, clean it carefullyIf it is damaged, replace itCheck the wiring for continuityUse the wiring diagram to find the ends of the lead which is suspected of being problemConnect the hand tester between the ends of the leads