2003 Ski-Doo ZX Series Factory Shop Manual, Page 157Get this manual
Subsection 06
Section 04 ENGINE (OIL INJECTION SYSTEM)
WARNING
Wipe off any oil spillsOil is highly flammable
OIL PUMP IDENTIFICATION
4, Pump Lever
Different engines need different pumpsSee identification on lever no4CAUTION: Always mount proper pump on engineENGINE TYPE 377 493 503 552 593, 593 HO 693 793, 793 HO OIL PUMP IDENTIFICATION L13 02 E8 03 02 01 01
OIL TYPE
All Models Use recommended injection oil as per vehicle Operator's Guide
OIL SYSTEM LEAK TEST
All Models The following test will indicate any leak from oil reservoir to the banjo fitting(s)Install on oil reservoir special cap of leak testing kit (PN 529 033 100)Install hose pinchers (PN 295 000 076) on outlet hoses1 2