2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 725Get this manual
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Section 02 ENGINE Subsection 03 (EXHAUST SYSTEM) , '
Check exhaust pipe and shields for:DamagesCracksAl so inspect gaskets conditionReplace as required f') IU LY.tJ 1
Exhaust Pipe I