1972 Ski-Doo Shop Manual, Page 155Get this manual
TWO CYLINDER (c) Secure in place using two (2) nuts and washersNOTE: Make sure to align intake manifold pulsation port with cylinder pulsation port41On engine equipped with single cylinder cowl, position cowl and affix to engine with appropriate screws, bolts and washersNOTE: On T'NT 440 model, install spring, retainer bracket on cylinder head distance nut42On all other engines, position exhaust side cylinder cowl in location and secure using two (2) screws and washers and the cylinder headcylinder cowl boltInstall cylinder cowl stUdNOTE: On T'NT 340 model, install spring retainer bracket and spacer on cylinder head distance nut43On T'NT 340 model, install throttle cable bracket to cylinder cowl with one (1) bolt and nut44On vehicles equipped with an engine conso le, position console in location and secure using Allen head capscrews45Carry out engine timing46Install carburetor(s}, drive pulley and spark plugs47Install starting pulley on magneto ring plate studs using three (3) washers and nuts48Place shim, woodruff key, inner pulley half, shims, "v" belt, outer pulley half, locking washer and nut on fan shaft49Install fan wrench and firmly tighten the fan shaft nut (fig2-341 )50Check if the belt has 14 inch free play (fig2-342L Should the "V" belt have incorrect free play correction can be made by installingor removing shims between the inner and outer pulley halvesTorque the fan shaft nut to 12 to 17 ftllbsusing torque wrench and fan holder wrenchRemove fan holder wrench51Press the fan protector onto fan housing52On all models, except 340 and 440 T'NT, install mufflerNOTE: On T'NT 340 and 440 models, install exhaust manifold on exhaust socket