2004 Skidoo ZX Series Service Manual, Page 124Get this manual

2004 Skidoo ZX Series Service Manual, Page 124

Quality of the image is intentionally reduced!

Section 04 ENGINES (2-STROKE) Subsection 01 (377 AND 552 ENGINE TYPES)
Prior to installation, heat the bearing as per the procedure given farther in this sub-sectionThis will expand bearings and