2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 69Get this manual
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Section 02 ENGINE Subsection 05 (EXHAUST SYSTEM)
3 Torque manifo ld screws to specification us ing he following pattern
a SNAP-ON MM ALLEN SPHERICAL SOCKET (PIN FABLM 5E)