2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 882Get this manual
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Section 04 FUEL SYSTEM Subsection 01 (ELECTRONIC FUEL INJECTION)
To avoid getting dirt into engine, spray cleaner on clean rag hen rub rag against throttle plate and bore toothbrush orks ell too