1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 15Get this manual
1972 MODEL
Noof Cylinders Bore Stroke Displacement Compression Ratio Starting Overall Length Overall Width Height wlo Windshield Weight IIbs Bearing Area Ground Pressure (P.S.J Track (Width) Standard Gear Ratio Lighting Coil (Watts) sPark Plug (Bosch) Spark Plug (gap) (except pre-gapped plug) Breaker Points (gap) Tank CapacityImp-U.SMixing Ratio (gasoill Type Speedometer Tachometer
One 75mm 66mm 29(6cc 10.5:1 Manual 99" 30-5S" 35-12" 316 1092 sq.in0.289 15"
Two 2x59.5mm 2x61mm 339.2cc l1.S: Manual 99" 30-5S"
Two 2x67.5mm 2x61mm 436.6cc 11.S: Manual 99" 30-58" 35-12" 356 1092 sq.in0.326 15" lS34 75W M-280-Tl .020"
Two 2x76mm 2x70mm 635.1cc 10.0:1 Manual 101"