1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 16Get this manual
1973 MODEL
MODEL ENGINE
ELAN Noof cylinders Bore Stroke Displacement Compression Ratio Carburetor (Tillotson) Overall Length Overall Width Height Height wo Windshield Weight IIbs Bearing Area Ground Pressure (p.s.i Maximum Load Capacity StdGear Ratio Brake Light Coil Output lighting Coil Output Headlamp (Watt) TailStop Light Spark Plug (Bosch) Spark Plug Gap Breaker Points Gap Voltage Regulator Tank CapacityImp-U.SGasoline GasOil Ratio Type
250 One 69mm 66mm 246.8cc 7.5: HR