1974 Yamaha RD 350 (6-speed) specifications

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

Technical specifications

Displacement	347.0 ccm (21.17 cubic inches)
Engine type	Twin, two-stroke
Engine details	Reed valve.
Power	39.0 HP (28.5 kW )) @ 7500 RPM
Torque	32.7 Nm (3.3 kgf-m or 24.1 ft.lbs) @ 7000 RPM
Compression	6.6:1
Bore x stroke	64.0 x 54.0 mm (2.5 x 2.1 inches)
Fuel system	Carburettor. Mikuni VM28 SC
Fuel control	Membrane
Ignition	Dual coils, breaker points
Cooling system	Air
Gearbox	6-speed
Transmission type	Chain (final drive)
Clutch	Wet, multi-plate
Frame type	Tubular, double cradle
Front suspension	Telescopic forks
Rear suspension	Dual shocks
Front brakes	Single disc. Two-piston calipers.
Rear brakes	Expanding brake
Front tyre	3.00-18
Rear tyre	3.25-18
Dry weight	155.0 kg (341.7 pounds)
Weight incl. oil, gas, etc	162.0 kg (357.1 pounds)
Seat height	800 mm (31.5 inches) If adjustable, lowest setting.
Overall length	2057 mm (81.0 inches)
Overall width	990 mm (39.0 inches)
Ground clearance	163 mm (6.4 inches)
Wheelbase	1321 mm (52.0 inches)
Fuel capacity	16.00 litres (4.23 US gallons)
Top speed	180.0 km/h (111.8 mph)

Source: Bikez: RD 350 (6-speed), 1974. Retrieved 2026-09-19. Match confidence: exact.

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