| MODEL | YAMAHA TZ 125 G 1980 |
| Year | 1980 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 125 cc / 7.63 cu in |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | Liquid |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | Mikuni 38 mm carburettor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | — |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
The TZ 125 G is a customer road-racing machine for the 125 cc Grand Prix class, built around a liquid-cooled two-stroke single with a six-speed gearbox. It was made for racing and was not sold for road use.
