YamahaBike Specs
Skip to specifications

1973 Yamaha U7E specifications

Available technical data for this model and year. Specifications can vary by market and version.

Technical specifications

Displacement72.0 ccm (4.39 cubic inches)
Engine typeSingle cylinder, two-stroke
Power4.9 HP (3.6 kW )) @ 6500 RPM
Torque6.4 Nm (0.6 kgf-m or 4.7 ft.lbs) @ 4500 RPM
Compression6.8:1
Bore x stroke47.0 x 42.0 mm (1.9 x 1.7 inches)
Fuel systemCarburettor
Transmission typeChain (final drive)
Dry weight77.0 kg (169.8 pounds)
Overall height1005 mm (39.6 inches)
Overall length1840 mm (72.4 inches)
Overall width645 mm (25.4 inches)
Ground clearance135 mm (5.3 inches)
Wheelbase1175 mm (46.3 inches)
Fuel capacity4.50 litres (1.19 US gallons)
Top speed85.0 km/h (52.8 mph)

Source: Bikez: U7E, 1973. Retrieved 2026-09-19. Match confidence: exact.

Years listed are the entries held in this archive, rather than a complete production history.

Browse TDM to U7 models and variants · Parts buying guide · Decals and graphics