| MODEL | YAMAHA IT 175 1980 |
| Year | 1980 |
| Engine Type | Two-stroke, single cylinder, reed-valve induction |
| Displacement / Capacity | 171 cc / 10.4 cu in |
| Bore X Stroke | 66 x 50 mm |
| Compression Ratio | 7.9:1 |
| Cooling System | Air cooled |
| Max Power | 14.6 kW / 19.86 hp @ 8000 rpm |
| Max Torque | 18.47 Nm / 13.63 lb-ft @ 7500 rpm |
| Ignition | CDI |
| Induction | 32 mm Mikuni carburetor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | Wet, multi-disc |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Single-downtube, full cradle, chromoly frame with box-section aluminium swingarm |
| Front Suspension | Telescopic forks, 244 mm / 9.6 in travel |
| Rear Suspension | Monoshock with adjustable damping and pre-load, 241 mm / 9.4 in travel |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 899 mm / 35.4 in |
| Wheelbase | 1417 mm / 55.8 in |
| Ground Clearance | 290 mm / 11.4 in |
| Dry Weight | — |
| Wet Weight | 104.1 kg / 229.5 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.00 x 21 |
| Rear Tyre | 4.10 x 18 |
| FUEL SYSTEM | |
| Fuel Capacity | 11 Litres / 2.9 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 1980 IT 175 moved to a longer-travel chassis with an aluminium swingarm and a larger fuel tank, while engine output dropped slightly from the 1979 figures. It remained a pre-mix air-cooled two-stroke trail and enduro bike.
