2005 Kawasaki STx-12F Jet Ski Factory Service Manual., Page 154Get this manual
ENGINE LUBRICATION SYSTEM 4-19 Oil Pump Sprocket, Oil Pump and Oil Pressure Relief Valve
sl InOitlaPl:ump Sprocket (see Oil Pump Sprocket Installation) Oil Pan (see Oil Pan Installation)
Oil Pump Inspection
part Riemaolvyeintheeocilt tphuemopil pumspouter, inner rotors and coverV su sp If there is any damage or uneven wear, replace the rotors and cover
em ve REngoine :(see Engine RemovalInstallation chapter)
Oil Pan (see Oil Pan Removal) Oil Screen Bolts [A] Pull out the soil screen [B] to the coupling side