1989 Ski-Doo Repair Manual, Page 341Get this manual
Section 03 TRANSMISSION Sub-section 08 (GEARBOX)
(TYPICAL)
INSTALLATION
63,77, Gearboxgasket
Method when drive chain was not removed:After clearance adjustment has been performed, remove bearings from layshaft and drive shaft Properly install gasket on frame- Hook chain with wire and lift it Install gearbox then layshaft and drive shaft through chain
A017 003 010
- Install bearings and studsMethod when endless drive chain was removed (not cut)Properly install gasket on frame then gearboxInstall lower sprocket through chain, tracks, drive axles and suspensions
CAUTION: The finger of the gear change shaft must not block the gear change fork
17,18,20, Gear change forkcomponents