2004-2005 Kawasaki STX-15F Jet Ski Factory Service Manual., Page 122Get this manual
3-74 FUEL SYSTEM (DFI) T Bo As y
ISC Resistance Inspection
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