Enduro Bikes
1981Yamaha DT 125 MX
27 fields on record
The 1981 Yamaha DT 125 MX is a 123cc air-cooled two-stroke trail bike with reed-valve induction and Yamaha's Monocross single-shock rear suspension. It made 14 hp at 6,500 rpm through a six-speed gearbox, with drum brakes, an 855 mm seat and a 7-litre tank, and weighed 96 kg dry.
- Capacity
- 123.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 96.0 kg
- Seat height
- 855 mm
- Power
- 14.0 HP (10.3 kW) @ 6500 RPM
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 123.0 ccm
- Power
- 14.0 HP (10.3 kW) @ 6500 RPM
- Torque
- 15.2 Nm (1.5 kgf-m) @ 6500 RPM
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.1458 HP/kg (dry)
- Bore x stroke
- 56.0 x 50.0 mm
- Compression
- 7.2:1
- Cooling system
- Air
- Fuel system
- Carburettor
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1325 mm
- Overall length
- 2080 mm
- Overall width
- 885 mm
- Overall height
- 1120 mm
- Seat height
- 855 mm
- Dry weight
- 96.0 kg
- Fuel capacity
- 7.00 litres
- Ground clearance
- Not on record - add it
Chassis & suspension
- Front suspension
- Telescopic fork
- Rear suspension
- Monocross
- Front wheel travel
- 160 mm
- Rear wheel travel
- 115 mm
Brakes & wheels
- Front brakes
- Expanding brake
- Rear brakes
- Expanding brake
Other
- Comments
- Reed-valve induction
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the Yamaha DT 125 MX?
The 1981 Yamaha DT 125 MX has a Capacity of 123.0 ccm (7.51 cubic inches).
What engine power does the Yamaha DT 125 MX have?
The 1981 Yamaha DT 125 MX has a Power of 14.0 HP (10.3 kW) @ 6500 RPM.
How many gears does the Yamaha DT 125 MX have?
The 1981 Yamaha DT 125 MX has a Gearbox of 6-speed.
What is the torque of the Yamaha DT 125 MX?
The 1981 Yamaha DT 125 MX has a Torque of 15.2 Nm (1.5 kgf-m or 11.2 ft.lbs) @ 6500 RPM.
How much does the Yamaha DT 125 MX weigh?
The 1981 Yamaha DT 125 MX has a Dry weight of 96.0 kg (211.6 pounds).
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.