1986 Ski-Doo Factory Shop Manual, Page 327Get this manual
Section 03 TRANSMISSION SUb-section 07 (CHAINCASE)
Oil sear
2, 8all bearing 3Spacer 4, Chalncase 5Oil retainer ring 68al bearing 7Single sprocker 8Washer 9Lock lab Cap screw M6 20 17Breather 12Spacer 13Sprfng 14Chain (ensioner 15Bushing
16Cap screw M6 40 17raptile screw M6 it 16 (4) 18Shim (as required)9Flat washer 8.4 mm (except Citation LSEJ 20Lock washer mm 27, Cap screw M8 '.25 25 22Single sprocket 23Circfip 24Driving chain 25Gasket 26Chaincase cover 27Chaincase 011 level plug 28Drive axle holder 29Chaincase 01200 ml17 02 30Shim (Citation LSf only) fas required)
REMOVAL
Chaincase and driven pulley can be removed from the vehicle as an assemblyRemove clevis pin from the bracket
7,22,24.12 to 16, Sprockets; chaintensioner assembly
Unscrew the bolt on the upper sprocket.and remove circlip on the bottom oneRemove chain tensioner assembly, then simultaneously remove chain and both sprockets