Engineered by Yamaha for the trial motorcycle segment, the 1982 Yamaha DT 50 MX utilizes a 50 cc (3.1 cu in) air-cooled single cylinder, two-stroke layout. In factory specification, peak output is rated at 3.1 HP (2.3 kW), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 62 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the DT 50 MX measures 85 kg (187 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 790 mm (31.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance.
Within MotoLibrary's Yamaha archive, this model family spans 3 indexed model years from 1981 to 1983, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
62 HP/L
Standover Height
790 mm (31.1 in)
Engine
Displacement50.0 ccm (3.05 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power3.1 HP (2.3 kW))
Fuel SystemCarburettor
Fuel ControlPort control
Ignitionkey
LubricationOil pump
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Performance
ExhaustGaenelli
Chassis
Rear SuspensionMonoshock
Ground Clearance255 mm (10.0 inches)
Wheels & Brakes
Front BrakesExpanding brake (drum brake)
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight81.0 kg (178.6 pounds)
Weight incl.85.0 kg (187.4 pounds)
Power/Weight0.0383 HP/kg
Seat Height790 mm (31.1 inches) If adjustable, lowest setting.
Alt. Seat Height790 mm (31.1 inches) If adjustable, highest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
