Ski-Doo Free Airs An Unofficial History - Spec Page Ver 1.2 6/97              Home
YEAR Model Name Model No Engine Type Cylinders Bore Stroke Displacement C/R (UNC) hp Carburation Induction Track Track Width Track Length Length Width Height Ski Stance Weight Hood Accent Belly Pan Tunnel Ski
          mm mm cc         Type in In in in in in lb Colour Striping Colour Colour Colour
1970 Blizzard 292 7051 292 1 75 66 291.6 N/A 28 1xHD Piston-Port Rubber 15 114 98 30 N/A N/A 285 Yellow Black Yellow Yellow Yellow
1970 Blizzard 340 7053 340 1 78 70 334.5 N/A 32 1xHD Piston-Port Rubber 15 114 98 30 N/A N/A 285 Yellow Black Yellow Yellow Yellow
1970 Blizzard 440 7060 436 2 67 61 430.1 N/A 45 2xHR Piston-Port Rubber 18 114 98 34 N/A N/A 365 Yellow Black Black Black Yellow
1970 Blizzard 640 7062 636 2 76 70 635.1 N/A 64 2xHD Piston-Port Rubber 18 114 98 34 N/A N/A 375 Yellow Black Black Black Yellow
1970 Blizzard 776 7064 776 2 82 73 771.0 N/A 82 2XHD Piston-Port Rubber 18 114 98 34 N/A N/A 375 Yellow Black Black Black Yellow
                                                 
1971 Blizzard 291 7100 291 1 75 66 291.6 N/A 31 1xHD Piston-Port Cleated 15 114 98 30.6 N/A 24 328 Yellow Black + Checker Black Black Yellow
1971 Blizzard 246 7101 246 1 69 66 246.8 N/A 29 1xHD Piston-Port Cleated 15 114 88.5 29.5 N/A 23 246 Yellow Black + Checker Black Black Yellow
1971 Blizzard 336 7102 336 1 78.5 70 338.8 N/A 36 1xHD Piston-Port Cleated 15 114 98 30.6 N/A 24 328 Yellow Black + Checker Black Black Yellow
1971 Blizzard 397 7103 397 2 64.5 61 398.6 N/A 42 2xHD Piston-Port Cleated 15 114 98 30.6 N/A 24 351 Yellow Black + Checker Black Black Yellow
1971 Blizzard 293 7104 293 ? ? ? ? N/A     Piston-Port Cleated 15 114 98 30.6 N/A 24 328 Yellow Black + Checker Black Black Yellow
1971 Blizzard 437 7105 437 2 67.5 61 436.6 N/A 45 2xHD Piston-Port Cleated 15 114 98 30.6 N/A 24 351 Yellow Black + Checker Black Black Yellow
1971 Blizzard 339 7106 339 ? ? ? ? N/A     Piston-Port Cleated 15 114 98 30.6 N/A 24 351 Yellow Black + Checker Black Black Yellow
1971 Blizzard 645 7107 645 3 67 61 645.2 N/A 71 2xHD Piston-Port Cleated 16.5 114 98 34 N/A 27 420 Yellow Black + Checker Black Black Yellow
1971 Blizzard 797 7109 797 3 74.5 61 797.7 N/A 88 3xHD Piston-Port Cleated 16.5 114 98 34 N/A 27 420 Yellow Black + Checker Black Black Yellow
1971 Blizzard 291 7150 291 1 75 66 291.6 N/A 31 1xHD Piston-Port Rubber 15 114 98 30.6 N/A 24 328 Yellow Black + Checker Black Black Yellow
1971 Blizzard 246 7151 246 1 69 66 246.8 N/A 29 1xHD Piston-Port Rubber 15 114 88.5 29.5 N/A 23 246 Yellow Black + Checker Black Black Yellow
1971 Blizzard 336 7152 336 1 78.5 70 338.8 N/A 36 1xHD Piston-Port Rubber 15 114 98 30.6 N/A 24 328 Yellow Black + Checker Black Black Yellow
1971 Blizzard 397 7153 397 2 64.5 61 398.6 N/A 42 2xHD Piston-Port Rubber 15 114 98 30.6 N/A 24 351 Yellow Black + Checker Black Black Yellow
1971 Blizzard 293 7154 293 ? ? ? ? N/A     Piston-Port Rubber 15 114 98 30.6 N/A 24 328 Yellow Black + Checker Black Black Yellow
1971 Blizzard 437 7155 437 2 67.5 61 436.6 N/A 45 2xHD Piston-Port Rubber 15 114 98 30.6 N/A 24 351 Yellow Black + Checker Black Black Yellow
1971 Blizzard 399 7156 399 ? ? ? ? N/A     Piston-Port Rubber 15 114 98 30.6 N/A 24 351 Yellow Black + Checker Black Black Yellow
1971 Blizzard 645 7157 645 3 67 61 645.2 N/A 71 3xHD Piston-Port Rubber 16.5 114 98 34 N/A 27 420 Yellow Black + Checker Black Black Yellow
1971 Blizzard 776 7158 776 2 82 73 771.0 N/A   2xHD Piston-Port Cleated 16.5 114 98 34 N/A 27 420 Yellow Black + Checker Black Black Yellow
1971 Blizzard 797 7109 797 3 74.5 61 797.7 N/A 88 3xHD Piston-Port Rubber 16.5 114 98 34 N/A 27 420 Yellow Black + Checker Black Black Yellow
                                                 
1972 T'NT 400 FA 2414 398 2 64.5 61 398.6 N/A 40 2xHD Piston-Port Rubber 15 114 99 30 5/8 N/A 27 410 Yellow Black and White Black Black Chrome
1972 Blizzard 292 N/A 293 3 50 50 294.5 N/A 42 3xHR Piston-Port Cleated 15 120 102 36 N/A 29.75 390 White Yellow and Black Black Black Yellow
1972 Blizzard 340 2502 340 3 53.3 50 334.7 N/A 48 3xHR Piston-Port Cleated 15 120 102 36 N/A 29.75 390 White Yellow and Black Black Black Yellow
1972 Blizzard 395 2503 395 2 64.5 61 398.6 N/A 60 2xHD Rotary Valve Cleated 15 120 102 36 N/A 29.75 380 White Yellow and Black Black Black Yellow
1972 Blizzard 438 2504 438 2 67.5 61 436.6 N/A 67 2xHD Rotary Valve Cleated 15 120 102 36 N/A 29.75 380 White Yellow and Black Black Black Yellow
1972 Blizzard 645 2505 645 3 67 61 645.2 N/A 85 3xHD Piston-Port Cleated 15 120 102 36 N/A 29.75 415 White Yellow and Black Black Black Yellow
1972 Blizzard 797 2506 797 3 74.5 61 797.7 N/A 102 3xHD Piston-Port Cleated 15 120 102 36 N/A 29.75 415 White Yellow and Black Black Black Yellow
                                                 
1973 T'NT 340 FA 3511 346 2 59.5 61 339.2 N/A 45 2xHR Piston-Port Rubber 15 114 99.25 36 N/A 29.8 385 White Yellow, Orange, Black Black Alum. Black
1973 T'NT 400 FA 3512 396 2 64.5 61 398.6 N/A 50 2xHD Piston-Port Rubber 15 114 99.25 36 N/A 29.8 385 White Yellow, Orange, Black Black Alum. Black
1973 T'NT 340 SS FA 3516 346 2 59.5 61 339.2 N/A ? 2xHR Piston-Port Rubber 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
1973 T'NT 400 SS FA 3517 396 2 64.5 61 398.6 N/A ? 2xHD Piston-Port Rubber 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 298 GR 3501 298 2 ? ? ? N/A ? ? Rotary Valve Rubber 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 345 GR 3502 345 2 ? ? ? N/A ? ? Rotary Valve Rubber 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 441 GR 3503 441 2 ? ? ? N/A ? ? Rotary Valve Rubber 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 645 GR 3504 645 3 67 61 645.2 N/A ? ? Piston-Port Rubber 15 120 102 36 N/A 29.75   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 797 GR 3505 797 3 74.5 61 797.7 N/A ? ? Piston-Port Rubber 15 120 102 36 N/A 29.75   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 298 3521 298 2 ? ? ? N/A ? ? Rotary Valve Cleated 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 345 3522 345 2 ? ? ? N/A ? ? Rotary Valve Cleated 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 441 3523 441 2 ? ? ? N/A ? ? Rotary Valve Cleated 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 645 3524 645 3 67 61 645.2 N/A ? ? Piston-Port Cleated 15 120 102 36 N/A 29.75   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 797 3525 797 3 74.5 61 797.7 N/A ? ? Piston-Port Cleated 15 120 102 36 N/A 29.75   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 298 3531 298 2 ? ? ? N/A ? ? Rotary Valve Cleated 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 345 3532 345 2 ? ? ? N/A ? ? Rotary Valve Cleated 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
1973 Blizzard 441 3533 441 2 ? ? ? N/A ? ? Rotary Valve Cleated 15 114 99.25 36 N/A 29.8   White Yellow, Orange, Black Black Alum. Black
                                                 
1974 T'NT 340 FA 3414 346 2 59.5 61 339.2 N/A 45 2xHR Piston-Port Rubber 15 114 102.5 36 N/A 29.8 385 Black White, Black, Orange Black Alum. Black
1974 T'NT 400 FA 3415 396 2 64.5 61 398.6 N/A 50 2XHD Piston-Port Rubber 15 114 102.5 36 N/A 29.8 388 Black White, Black, Orange Black Alum. Black
1974 T'NT 440 FA 3416 436 2 67.5 61 436.6 N/A 55 2XHRM Piston-Port Rubber 15 114 102.5 36 N/A 29.8 391 Black White, Black, Orange Black Alum. Black
                                                 
1975 T'NT 340 FA 3426 346 2 59.5 61 339.2 N/A     Piston-Port Rubber 15 114 102.5 36 N/A 29.8   Black Orange, Yellow Black Alum. Black
1975 T'NT 440 FA 3427 436 2 64.5 61 398.6 N/A     Piston-Port Rubber 15 114 102.5 36 N/A 29.8   Black Orange, Yellow Black Alum. Black
1975 T'NT 245 RV 3554 245 2 54 54 247.3 N/A 43 2XVM34 Rotary Valve Cleated 15 105 102 41.75 N/A 34 320 Black Yellow, Orange Nose Black Alum. Black
                                                 
1976 T'NT 250 RV 3432 245 2 54 54 247.3 13:1 43 2xVM32 Rotary Valve Rubber 15 114 107 41.75 33 34 340 Yellow Black Black Alum. Black
1976 T'NT 340 RV 3433 345 2 63 54 336.7 12.5:1 48 2xVM38 Rotary Valve Rubber 15 114 107 41.75 33 34 345 Yellow Black Black Alum. Black
                                                 
1977 T'NT 340 FA 3439 ? 2 59.5 61 339.2 11.5:1 N/A 1xVM34 Piston Port Rubber 16.5 114 100 36.25 38.75 28 400 Yellow Black, Orange Black Black Black
1977 T'NT 440 FA 3440   2 67.5 61 436.6 11.5:1 N/A 1xVM34 Piston Port Rubber 16.5 114 100 36.25 38.75 28 405 Yellow Black, Orange Black Black Black
1977 RV 340 3441 345 2 63 54 336.7 12.5:1 N/A 2xVM34 Rotary Valve Rubber 15 114 107 41.75 33 34 345 Yellow Black Black Alum. Black
                                                 
                                                 
1978 T'NT 340 FA 3456 ? 2 59.5 61 339.2 11.5:1 N/A 1xVM34 Piston Port Rubber 16.5 114 100 36.25 38.75 28 400 Yellow Black, Orange Black Black Black
1978 RV 340 3460 345 2 63 54 336.7 12.5:1 N/A 2xVM34 Rotary Valve Rubber 15 114 107 41.75 33 34 345 Yellow Black Black Alum. Black
1977 Cross Country 340 345 2 63 54 336.7 N/A 45 2xVM35 Rotary Valve Rubber 15 114 107 41.75 33 34 N/A Yellow Black Black Alum. Black

Last Updated on 12/31/98
By Doug Hakala