2004 Skidoo ZX Series Service Manual, Page 228Get this manual

2004 Skidoo ZX Series Service Manual, Page 228

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Section 05 ENGINES (4-TEC) Subsection 02 (LEAK TEST)
INSTALLATION
NOTE: Within the course of the assembly, always replace the valve cover gasketTorque valve cover screws to Nm (80 lbfin)To