1974 Ski-Doo Shop Manual, Page 25Get this manual
ROLLER SQUARE SHAFT TYPE
COUNTERWE IGHT .ASSY
123 4567
fTetaining bolt Tab washer Governor cup Wear pad Sliding half ass'y Spring Fixed half
8Stop nut "9Additional weight 10Counterweight 11Shouldered pin 12_ Bushing 13Roller
Large displacement engine onl y
REMOVAL
Remove spark plugs and bring P.T.O piston approximately B.T.D.C Insert length of rewind starter rope through P.T.Ospark plug hole, then rotate drive pulley counterclockwise until piston bears against ropeInstall "u" clamp over pulley halvesOpen tab lock i'nd remove retaining bolt(See Special Tools)3 "