1984 Ski-Doo Shop Manual, Page 81Get this manual
SECTION 02 ENG INE SUB-SECTION 04 (447 ENGINE TYPE)
CLEANING
Clean all metal components in non-ferrous metal cleaner
18, Magneto flywheel
To remove magneto housing (flywheel): lock crankshaft with crankshaft locking tool (service tool) and adjust magneto housing puller and puller ring (service tool) as illustrated
CAUTION: Clean armature and magneto using "only clean cloth
DISASSEMBLY
19,20,22, V-belt pulley, starting pulley,nut
To gain access to magneto assembly, remove: injection oil line rewind starter starting and v-belt pulley