2004 Skidoo ZX Series Service Manual, Page 112Get this manual

2004 Skidoo ZX Series Service Manual, Page 112

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Section 04 ENGINES (2-STROKE) Subsection 01 (377 AND 552 ENGINE TYPES)
Install sleeve then shouldered sleeve over puller rod1 2
A02C2DA

TYPICAL 1 Sleeve inside bearing 2 Thrus