| MODEL | YAMAHA IT 400 1976 |
| Year | 1976 |
| Engine Type | Two stroke, single cylinder, reed valve |
| Displacement / Capacity | 396 cc / 24.2 cu in |
| Bore X Stroke | 85 x 70 mm |
| Compression Ratio | 7.4:1 |
| Cooling System | — |
| Max Power | 24.2 kW / 32.5 hp @ 8000 rpm |
| Max Torque | 30.3 Nm / 22.4 lb-ft @ 7500 rpm |
| Ignition | CDI |
| Induction | Mikuni VM38SS carburettor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | Wet, multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic adjustable forks, 210 mm / 8.2 in travel |
| Rear Suspension | Monoshock, adjustable spring preload and rebound damping, 180 mm / 7 in travel |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 901.7 mm / 35.5 in |
| Wheelbase | 1425 mm / 56.1 in |
| Ground Clearance | 250 mm / 9.8 in |
| Dry Weight | 115 kg / 253.5 lbs |
| Wet Weight | 121.5 kg / 268 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.00 x 21 |
| Rear Tyre | 4.50 x 18 |
| FUEL SYSTEM | |
| Fuel Capacity | 12 Litres / 3.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The IT 400 launched in 1976 as Yamaha's big-bore single-cylinder two-stroke enduro bike, using a rear monoshock when many rivals still had twin shocks. It was a heavy, torquey off-roader built for open riding and competition.
