1971-1973 Arctic Cat Snowmobiles Factory Service Manual, Page 35Get this manual
ENGINE SERVICING (TVVIN 6Remove the screw, flat washer and lock washer securing the front cylinder cover to the cylinder9Using an axial fan holder (Arctic Part No0144-004) disassemble the axial fan by removing the locknut, lock washer, outer fan adjustment sheave, belt tension spacers, belt and inner sheaveUsing either wrench or screwdriver, remove the three (3) bolts and lock washer securing the recoil starter assembly