1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 4Get this manual
1970 MODEL{ ,c
1970 T'NT SPECI FICATIONS
ITEM ENGINE
T'NT Noof Cylinders Bore Stroke Displacement Compression Ratio Overall Length Overall Width Height WIO Windshield Weight (Lbs Bearing Area rou nd 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 75 M.M66M.M291.6 c.c10: 96" 29" 33" 300 1092 sqin.275 15" 1025 Manual 40W M-280-T-31.018"-.022" .014"-.018" gal3.75 gal20:1 Drum Standard Standard
340 ONE 78M.M70M.M334.5 c.c10: 98" 31" 33" 305 1092 sqin.279 15" 1634 Manual 40W M-280-T-31.018"-.022" .014" -.018" gal3.75 gal20:1 Drum Standard Standard