Yamaha GX400SP (1978-79)

The Yamaha GX 400 is a motorcycle model that was produced between 1978 and 1979. It features a four-stroke, air-cooled parallel twin engine with a capacity of 391cc and a compression ratio of 9.2:1. The bike has a kick-start and can generate a maximum power of 37 hp at 8800 RPM and torque of 3.2 at 8000 RPM. Additionally, it comes with a six-speed transmission and a chain final drive. The front suspension is telescopic forks, while the rear is dual shocks. The bike is equipped with single-disc brakes both in the front and rear. It has a dry weight of 168kg, which is relatively heavy, and fuel capacity is not specified.


Technical specifications:

Make Model: Yamaha GX 400

Year: 1978 – 79


Engine: Four stroke, parallel twin
Capacity: 391
Bore x Stroke: 69 52.4 mm
Cooling System: Air cooled
Compression Ratio: 9.2:1
Induction: Carburetor
Starting: Kick
Max Power: 37 hp @ 8800 rpm
Max Torque: 3.2 @ 8000 rpm
Transmission: 6 Speed
Final Drive: Chain
Front Suspension: Telescopic forks
Rear Suspension: Dual shocks
Front Brakes: Single disc
Rear Brakes: Single disc

Front Tyre: 3.00-18
Rear Tyre: 3.50-18
Dry Weight: 168 kg
Fuel Capacity:

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