2005 Kawasaki STx-12F Jet Ski Factory Service Manual., Page 120Get this manual
3-72 FUEL SYSTEM (DFI) Throttle ody Assy
ISC esistance nspe ction
eo RAimFivltee:r (from the throttle body assy) ISC Connector [A] (disconnect)
Measure the ISC resistance with the hand testerSpecial ToolKawasaki Hand Tester: 57001-1394