1978 Yamaha LB 3 bop 80 specifications
Available technical data for this model and year. Specifications can vary by market and version.
Technical specifications
| Displacement | 73.0 ccm (4.45 cubic inches) |
|---|---|
| Engine type | Single cylinder, two-stroke |
| Power | 5.0 HP (3.6 kW )) @ 6700 RPM |
| Compression | 5.8:1 |
| Bore x stroke | 47.0 x 42.0 mm (1.9 x 1.7 inches) |
| Fuel control | Membrane |
| Cooling system | Air |
| Gearbox | 3-speed |
| Transmission type | Chain (final drive) |
| Front brakes | Expanding brake |
| Rear brakes | Expanding brake |
| Front tyre | 4.00-10 |
| Rear tyre | 4.00-10 |
| Weight incl. oil, gas, etc | 82.0 kg (180.8 pounds) |
| Fuel capacity | 3.50 litres (0.92 US gallons) |
| Top speed | 65.0 km/h (40.4 mph) |
Source: Bikez: LB 3 bop 80, 1978. Retrieved 2026-09-19. Match confidence: exact.
Years listed are the entries held in this archive, rather than a complete production history.
Browse GTS to RD250 models and variants · Parts buying guide · Decals and graphics