2004 Skidoo Tundra Skandic Series Service Manual, Page 189Get this manual
Subsection 07
Section 04 ENGINE (OIL INJECTION SYSTEM)
CHECKING OPERATION
Oil Pump
On Vehicle NOTE: Main oil line must be full of oilSee bleeding procedure aboveLift rear of vehicle and support with mechanical standDisconnect 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 in fully open positionOil columns must advance into small oil linesIf not, remove pump assembly 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 oil linesIf oil drops, verify check valve operation in injection nozzleReplace as necessaryTest Bench Connect hose filled with injection oil to supply 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