1974 Ski-Doo Shop Manual, Page 54Get this manual
Proceed with drive chain adjustmentFree-play on cha in must be Y"Lock tensioner with capscrewInstall drain and inspection plugsPour 10 ozs of Ski -Doo cha in case oi int gearhox Attach shifter rod and brake assembl Th trellle the index rod is adjusted by turning adj uster tllhe ;:-