2003-2005 Kawasaki JetSki Ultra-150 Factory Service Manual, Page 86Get this manual
ENGINE LUBRICATION SYSTEM 4-5 Oil Pump
Oil Pump Bleeding
plenty of Make sure that there isrestrictedengine oil in the oil tank and that oil flow is not container under the oil pump Place the air bleeder screw [A] on the oil pump couLoosen ple of turns, wait until oil flows out, and then tighten the bleeder screw securelyTorqueAir Bleeder Screw: 1.0 1.5 Nm (0.1 0.15 kgfm, 13 inlb)
CAUTION
Use 50: mixture of gasoline to oil in the fuel tank in place of the gasoline normally usedDo not turn on the water until the engine is running and turn it off immediately when the engine stopsthe cooling system with water (see Supplythe General Information chapter)Auxiliary Cooling in the engine, keep it at idling speed and Startthrough the transparent outlet hosescheck the oil flow Keep the engine running until any air bubbles in the outlet hoses disappear