| MODEL | YAMAHA DT50MX 1981 - 1983 |
| Year | 1981 - 1983 |
| Engine Type | Single cylinder, two-stroke, reed (membrane) valve |
| Displacement / Capacity | 50 cc / 3.05 cu in |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | Air |
| Max Power | 2.3 kW / 3.1 hp |
| Max Torque | — |
| Ignition | — |
| Induction | Carburettor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | Oil pump |
| Gear Box | 4-speed |
| Clutch | Wet plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Welded tube |
| Front Suspension | — |
| Rear Suspension | Monoshock |
| Front Brakes | Single disc |
| Rear Brakes | Drum |
| 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 | 8 Litres / 2.11 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The DT50MX was a small-capacity trail bike from Yamaha's early-1980s DT line, using an air-cooled reed-valve two-stroke with a four-speed box and Monoshock rear end. It brought the look of the larger DT enduro machines to the 50 cc class for young riders.
