2005 Ski-Doo REV Series Shop Manual, Page 77Get this manual
Section 03 ENGINES Subsection 02 (EXHAUST SYSTEM)
Fan Cooled Engines Apply RTV sealant (PN 293 800 090) on gasket contact surfacesAll Engines Install all exhaust springs using exhaust spring installerremover (PN 529 035 401)
MUFFLER
Identification
Each muffler is identified by numberTo use the proper muffler with the proper vehicle, check the number on the welded clamp at the end of mufflerThis number depicts the last numbers of BRP part number
MANIFOLD
Removal
Remove: tuned pipe no2 doughnut shaped exhaust gasket no3 manifold screws no5 CAUTION: On engines with mm (14 in) screws, heat screws for 30 seconds before loosening to prevent screw breakage manifold no6 gaskets no7
Inspection
Check if the manifold is cracked or damagedReplace if necessaryA33C2MA