2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 166Get this manual
Section 03 ENGINES (2-STROKE) Subsection 07 (AXIAL FAN COOLING SYSTEM)
NOTE: The following procedures can be done without removing engine from chassis
REMOVAL
NOTE: To facilitate further disassembly, fan nut may be removed before removing fan housingRemove rewind starter, starting pulley, trigger coil wire from 4-connector housing then fan housing ass'y
CLEANING
Clean all metal components in non-ferrous metal cleanerA09C08A
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DISASSEMBLY AND ASSEMBLY
Using flat screwdriver, lift fan protector tabs as shown in the following photo, then remove fan protector