1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 9Get this manual
1971 MODEL 24
1971 T'NT SPECIFICATIONS
l-15-99-ITEM ENGINE T'NT Noof Cylinders Bore Stroke Displacement Compression Ratio Overall Length Overall Width Height WO Windshield Weight (lbs Bearing Area Ground Pressure (P.S.I Track (Width) Standard Gear Ratio Starting Lighting Coil (Watts) Spark Plug(s) (Bosch) Spark Plug (Gap) Breaker Points (Gap) Tank Capacity-ImpTank Capacity-U.SMixing Ratio (GasOil) Type Speedometer Tachometer 292 ONE 75M.M66 M.M292 c.c10.5: 99 30-58 34 310 1092 sqin0.285 15" 1534 Manual 75W M-280-T-31.018"-.022" .014"-.018" gals6.25 gals20: Drum Standard Standard 340 ONE 78 M.M70 M.M335 c.c10.5: 99 30-58 34 315 1092 sqin0.289 15" 1634 Manual 75W M-280-T-3P .018"-.022" .014"-.018" gals6.25 gals20:1 Drum Standard Standard 440 TWO 2x67.5 M.M2x61 M.M437 c.c10.5: 100 34 36 360 1242 sqin0.291 18" 1634 Manual 75W M-280-T-31 .018"-.022" .014"-.018" gals6.25 gals20: Drum Standard Standard 640 TWO 2x76 M.M2x70 M.M635 c.c10.0: 100 34 36 390 1242 sqin0.314 18" 2034 Manual 75W M-280-T-31.018"-.022" .014"-.018" gals6.25 gals20: Drum Standard Standard