1983 Ski-Doo Shop Manual, Page 164Get this manual
c Connect the drive chain using connecting linkReinstall the gearbox cover (refer to section 03-08 (gearbox) for complete gearbox information)Adjust the chain tension and check the gearbox oil levelInstall the gearbox rod and adjust (see section 03-08) Install the driven pulley support Check pulley alignment and install the drive beltInstall the pulley guard