2005 Ski-Doo REV Series Shop Manual, Page 178Get this manual
Section 03 ENGINES Subsection 10 (OIL INJECTION SYSTEM)
CHECKING OPERATION
Oil Pump
On Vehicle NOTE: Main oil line must be full of oilSee bleeding procedure belowLift rear of vehicle and support with mechanical standUnplug small oil lines from pumpStart engine and stop it as soon as it firesCheck that oil in small oil lines has been sucked up (this will be indicated by clear section of small oil lines)Repeat the procedure until this condition is attainedReconnect small oil lines, start engine and run at idle while holding the pump lever no3 in fully open positionOil columns must advance into small oil linesIf not, remove pump assembly no4 and check the pump gear and drive shaft (if applicable) for defects, replace as necessaryTest pump as describes belowNOTE: Through normal use, oil level must not drop in small tubesIf oil drops, verify check valve no5 operation in injection nozzleReplace as necessaryTest Bench Connect hose filled with injection oil to main line fittingInsert other hose end in an injection oil containerUsing clockwise rotating drill rotate pump shaftOil must drip from outer fittings while holding lever in fully open positionIf not replace pump