1982 Ski-Doo Shop Manual, Page 51Get this manual
SECTION 02 ENGINE SUB-SECTION 03 (377 ENGINE TYPE)
CLEANING
Clean all metal components in non-ferrous metal cleaner, CAUTION: Clean armature and magneto using only clean cloth
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
DISASSEMBL Y
To gain access to magneto assembly, remove:injection oil reservoirstarter housingstarting and v-belt pulleys NOTE: Before disassembling magneto plate, indexing marks should be located to facilitate reassembly
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To remove magneto flywheel retaining nut:
lock crankshaft with crankshaft locking tool (service tool) as illustrated (magneto side piston must be at top dead center) remove magneto retaining nut