2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 151Get this manual

2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 151

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Subsection 12
Clean carbon deposits Cleaning intervals depend upon the user's riding style and the quality of the oil usedBRP suggests annual cleaning of the va lveIf customer uses lower quality