2004-2005 Kawasaki STX-15F Jet Ski Factory Service Manual., Page 93Get this manual
FUEL SYSTEM (DFI) 3-45 Vehicle-down Sensor (Service CodeCharacter-31dOS)
Vehicle-down Sensor Inspection OT E
em RFueove:nk (see Fuel Tank Removal) Ta
Be sure the battery is fully charged
di al he oh Ceohninlec-tdawngstenvolrt lmaedtewi[tA]thoetneecdolnnaedcatorte[rBs] etf [tCev ce so ]
Special ToolNeedle Adapter Set: 57001-1457 Vehicle-down Sensor Power Source Voltage to+G le])[ ]