1978 Ski-Doo Shop Manual, Page 73Get this manual
SECTION 02 SUB-SECTION 08 (GEARBOX) (INSTALLATION
Prior to installation, with the gearbox removed, adjust gearbox to obtain correct engagementAt "forward" position, sleeve must be as shown,
FORWARD POSITION
Install gear change shaft on upper housing then on outside of housing, position shim, gear change leverwasher and nut Torque to 23 N-m (17 ft-Ibs)Using feeler gauge, check that free-play of gear change shaft is within tolerance of 0.15-0.30 mm (,006 to .012")If free-play is not within tolerance, record discrepancyRemove nut, washer, gear change lever, shim, and gear change shaftDivide discrepancy by two and install that amount of shim on gear change shaft Install shaft into upper housingInstall remaining shims on gear change shaftInstall gear change lever as per following illustrationInstall washer and nut Torque to 23 N-m (17 ftlbs)
Gear cha nge I1!:::::-':i1llil'T lever Gear change shaft