1982 Ski-Doo Shop Manual, Page 38Get this manual
SECTION 02 ENGINE SUB-SECTION 02 (277 ENGINE TYPE)
CLEANING
Clean all metal components in non-ferrous metal cleanerCAUTION: Clean armature using only cleancloth
adjust magneto housing puller and puller ring (service tools) as illustrated
DISASSEMBLY
To gain access to magneto assembly:disconnect engine block connectordisconnect oil injection 'supply lineloosen cylinder cowl boltsremove fan cowlNOTE: Before disassembling magneto plate, indexing marks should be located to facilitate re-assembly
To remove magneto flywheel retaining nut:
lock crankshaft with crankshaft locking tool (service tool) as illustrated (piston must be at top dead cen ter)remove magneto retaining nut Crankshaft locking tool