1985 Ski-Doo snowmobile Service Manual, Page 35Get this manual
Section 02 ENGINE SUb-section 01 (247 ENGINE TYPE)
12, Magneto housing
To remove magneto housing (flywheel): use flywheel puller (service tool) and magneto housing holder (service tool) as illustrated
Checking air gap Feeler gauge
AOO2002QOl
ASSEMBLY
Magneto housing holder
AOOOOO107B
Clean crankshaft extension (taper)Apply Loctite 242 (blue, medium strength),
- Position magneto on crankshaft with the keyway andthe cam notch indexed as illustrated:
Tighten puller nut and, at same time, tap on bolt head using hammer to release magneto from its taper