1974 Ski-Doo Shop Manual, Page 112Get this manual
REMOVAL Remove or disconnect the following (if applicable) then lift engine out of vehicle Drive belt MufflerNote: On rear-mounted engine vehicle, the muffler and associated components are accessible through an access panel located under the seat rest Cab retaining cable Air silencer Choke cable or prirr.er line at carburetor Throttle cable Fuel lines at carburetorWarning: Secure fuel lines so that the opened ends are higher than the fuel tank Electrical connectionsCaution: On electric start model, disconnect negative cable (ground) from battery before disconnecting other wires Engine mount nuts Prior to installation, place bearings into an oil container and heat the oil to 200 Ffor to 10 minThis will expand bearing and ease installationInstall bearings with groove outward(j)A distance ring replaces the crankshaft shoulder on type 440 engine, starting from vehicle serial no2,749,845To remove starter gear from crankshaft it may be necessary to use special puller as illustrated (See Tool Section)
To remove or install magneto retaining nut, lock