Suzuki GSX400X Impulse (1986-87)

The Suzuki GSX 400X Impulse was a motorcycle produced from 1986-87. It had a four stroke, transverse four cylinder, DOHC, 4 valves per cylinder engine with a capacity of 399 cc. The compression ratio was 11.8:1 and it had 4 x 29mm carburetors for induction. The bike had electric starting and was capable of producing a maximum power of 43 kW / 59 hp at 12000 rpm and a maximum torque of 37 Nm / 3.8 kgf-m / 27.3 lb-ft at 10500 rpm. The transmission was a 6 speed with a chain final drive. The front suspension consisted of telescopic forks and the rear suspension was dual shocks preload adjustable. The bike had front brakes with 2 x 290mm discs and 2 piston calipers, while the rear brake had a single disc and 1 piston caliper. The front tyre size was 110/80-17 and the rear tyre was 130/80-17. The dry weight of the motorcycle was 153kg / 337lbs and the fuel capacity was 18 litres / 4.8 US gal / 4.0 Imp gal.

Technical specifications:

Make Model: Suzuki GSX 400X Impulse

Year: 1986 – 87
Engine: Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder
Capacity: 399 cc / 24.3 cu in
Bore x Stroke: 52 x 47 mm
Compression Ratio: 11.8:1
Induction: 4 x 29 mm carburetors
Ignition: Transistorised
Starting: Electric
Max Power: 43 kW / 59 hp @ 12000 rpm
Max Torque: 37 Nm / 3.8 kgf-m / 27.3 lb-ft @ 10500 rpm
Transmission: 6 Speed
Final Drive: Chain
Front Suspension: Telescopic forks
Rear Suspension: Dual shocks preload adjustable.
Front Brakes: 2 x 290 mm Discs, 2 piston calipers
Rear Brakes: Single disc, 1 piston caliper
Front Tyre: 110/80-17
Rear Tyre: 130/80-17
Dry-Weight: 153 kg / 337 lbs
Fuel Capacity: 18 Litres / 4.8 US gal / 4.0 Imp gal