These are the known mechanical and performance specifications for your 1978 Yamaha DT 125 MX.
Basic Specs
Engine
Displacement123.00 ccm (7.51 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM8000
Compression
Bore/Stroke56.0 x 50.0 mm (2.2 x 2.0 inches)
Valves/Cylinder
FuelingCarburettor. Mikuni VM 24 SH
Ignition
Exhaust
LubricationAutolube
CoolingAir
Performance
Horespower14.00 HP (10.2 kW)
Torque1.53 Nm (0.2 kgf-m or 1.1 ft.lbs)
Top Speed110.0 km/h (68.4 mph)
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity7.00 litres (1.85 gallons)
Emissions
Chassis
Frame Type
Rake60.0°
Trail
Front SuspensionHydraulic telescopic fork
Front Travel180 mm (7.1 inches)
Rear SuspensionMonocross
Rear Travel145 mm (5.7 inches)
Seat
Seat Height845 mm (33.3 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1,120 mm (44.1 inches)
Total Length2,085 mm (82.1 inches)
Total Width865 mm (34.1 inches)
Ground Clearance265 mm (10.4 inches)
Wheelbase
Dry Weight95.0 kg (209.4 pounds)
Wet Weight102.0 kg (224.9 pounds)
Wheels & Brakes
Front Tire/Tyre
Rear Tire/Tyre
Front BrakesExpanding brake (drum brake)
Front Brake Diameter130 mm (5.1 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter130 mm (5.1 inches)
Wheels
Comments