2000 Polaris Pro 785 Service Manual, Page 367Get this manual
ENGINECOOLING Oil PumpFuji Oil Pump Bleeding
The oil pump must be bled following any repair service to the injection system which might allow loss of oil and subsequent trapped air upon reassemblyIMPORTANT: Always pre-mix the first tank of fuel used after oil pump or engine service to ensure proper lubrication of the engine
3Fill oil reservoir with Polaris injector oil4 Loosen hex head screw at top of oil pump5After short period of time oil should begin to flow from beneath the screw headBe sure that steady flow of oil is evident to remove all air before tightening the screw6Tighten screw
Do not over tightenThe screw is hollow7Any time the engine is disassembled or repaired it is important that each oil supply line from the pump to the engine be checked for signs of wear or air bubblesIf air bubbles greater than 12" (1 .3 cm) in length are present, fill oil supply lines with oil using small oil squirt can