1970-1973 Ski-Doo Snowmobiles Technical Data Manual, Page 10Get this manual
1971 MODEL
1971 AlPINEVAlMONT SPECIFICATIONS
Illustrated VALMONT MODEL
ITEM ENGINE
ALPINEIV ALMONT Noof Cylinders Bore Stroke Displacement Compression Ratio Overall Length-Alpine -Valmont Overall Width Height WIO Windshield Weight (Lbs.l-Alpine -Val mont Bearing Area-Alpine -Valmont Grd.Press (P.S.I.l-Alpine -Valmont Track (Width) Standard Gear Ratio Reverse Starting Lighting Coil (Watts) Spark Plug(s) (Bosch) Spark Plug (Gap) Breaker Points (Gap) Tank Capacity-ImpTank Capacity -U .SMixing .Ratio iGasOil) Type
399R TWO 2x64.S M.M2x61 M.M399 C.c8.7S:1 113-34" 105-12 3S" 39" 508 4S0 2160sqin1756 sqin0.236 0.256 2x1S" 1339 Standard Manual 7SW W-240-T-l' .018 .022 .014 .018 gals6.25 gals20:1 Disc