2004 Skidoo ZX Series Service Manual, Page 180Get this manual

Section 04 ENGINES (2-STROKE) Subsection 06 (AXIAL FAN COOLING SYSTEM)
CAUTION: When installing rewind starter, ensure that oil pump shaft is properly positionedDo not force shaft insertionTurn fan until oil pump shaft slides in place, as shown in the following photo
A03C25A

TURN FAN TO SLIDE OIL PUMP SHAFT IN PLACE

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives