1984 Ski-Doo Shop Manual, Page 33Get this manual
SECTION 02 ENG INE SUB-SECTION 01 (247 ENGINE TYPE)
12, Magneto housing
To remove magneto housing (flywheel): use fl ywheel puller (service tool) and magneto housing holder (service tool) as illustrated
Checking air gap Feeler gauge
ASSEMBLY
Magneto housing holder
Clean crankshaft extension (taper)Apply Loctite 242 (blue, medium strength)Position magneto on crankshaft with the keyway and the cam notch indexed as illustrated:
Tighten puller nut and, at same time, tap on bolt head using hammer to release magneto from its taper