2004 Skidoo ZX Series Service Manual, Page 151Get this manual
Section 04 ENGINES (2-STROKE) Subsection 03 (ENGINE LEAK TEST AND MEASUREMENT)
If there is no leak at the tested location, continue pumping to maintain pressure and continue with next items until leak is foundEngine Check the following: All jointed surfaces and screwstud threads of engine: spark plug base, insulator cylinder head RAVE valve bellows, piston and housing cylinder crankcase halves (joint) oil injection pump mounting flange (O-ring) coolant pump housing bleed screwsplugs crankcase grease reservoir fitting Small injection oil lines coming from pump
Pump Shaft Oil Gear Reservoir Install air pump on adapter and pressurize as above
A32C1HA
If pressure drops, it indicates defective crankshaft inner sealA32C1GA