Yamaha GX750 (1978-79)

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Yamaha GX 750 Sport is a motorcycle produced from 1978 to 1979. The bike has a four-stroke, transverse three-cylinder engine that has a capacity of 747cc/45.5cu-in. It has air cooling and a compression ratio of 8.5:1. The induction is Mikuni Thorex SU type BS34, and the ignition is battery point, with an electric starting system. The motorcycle delivers a maximum power of 67 hp/50 kW at 7000 rpm and a maximum torque of 6.3 kgf-m at 6500 rpm. It comes with a 5-speed transmission and a shaft final drive. The front suspension has telescopic forks while the rear suspension has dual shocks. A single disc brake is present for both the front and rear systems. The front tire is F3.25-19, and the rear tire is 4.00-18. The dry weight of the bike is 229 kg/502.6lbs, and it has a fuel capacity of 17 liters/4.5 US gal. The Yamaha GX 750 Sport motorcycle was produced for only two years, but it has a powerful, reliable engine, and it’s a high-performing motorcycle, even after all these years.

Technical specifications:

Make Model: Yamaha GX 750 Sport

Year: 1978 – 79


Engine: Four stroke, transverse three cylinder. DOHC
Capacity: 747 cc / 45.5 cu-in
Bore x Stroke: 68 68.6 mm
Cooling System: Air cooled
Compression Ratio: 8.5:1
Induction: Mikuni Thorex SU type BS34
Ignition: Battery point
Starting: Electric
Max Power: 67 hp / 50 kW @ 7000 rpm
Max Torque: 6.3 kgf-m @ 6500 rpm
Transmission: 5 Speed
Final Drive: Shaft
Front Suspension: Telescopic forks
Rear Suspension: Dual shocks
Front Brakes: Single disc

Rear Brakes: Single disc
Front Tyre: F3.25-19
Rear Tyre: 4.00-18
Dry Weight: 229 kg / 502.6 lbs
Fuel Capacity: 17 Litres / 4.5 US gal

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