2006 Ski Doo REV Service Shop Manual, Page 33Get this manual

2006 Ski Doo REV Service Shop Manual, Page 33

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Section 02 TROUBLESHOOTING Subsection 01 (ENGINE)
NORMAL USE4 Melted andor perforated piston dome; melted section at ring end gapaWhen piston reaches TDC, mixture is ignited by heated areas in c