The Kawasaki GPX 400R or EX400 Ninja, manufactured between 1991 and 1995, has a liquid-cooled four-stroke parallel twin-cylinder engine with 4 valves per cylinder and a capacity of 398 cc. It has a compression ratio of 10.7:1 and a wet sump lubrication system, a carburetor induction method, and is equipped with TCI ignition. The motorcycle’s maximum power is 50 hp or 36.5 kW at 10500 rpm, while its maximum torque is 3.6 kgf-m at 9000 rpm. It’s transmission is 6-speed with a chain final drive. The iron frame is a double-cradle model with a 38mm telescopic fork for the front suspension, while the rear suspension is a swinging arm, single shock adjustable for spring preload type with a travel of 100mm. The motorcycle has single disc brakes on both the front and rear wheels, with 110/70-17 and 130/70-17 tires, respectively. The dry weight of the bike is 177 kg or 390 lbs, and it has a fuel capacity of 16 litres or 3.9 US gal.
Technical specifications:
Make Model: Kawasaki GPX 400R / EX400 Ninja
| Year | 1991 – 95 |
|---|---|
| Engine | Four stroke, parallel twin cylinders, DOHC, 4 valves per cylinder. |
| Capacity | 398 cc / 24.3 cu-in |
| Bore x Stroke | 70 51.8 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 10.7:1 |
| Lubrication | Wet sump |
| Induction | Carburetor |
| Ignition | TCI (Transistor Controlled Ignition) |
| Starting | Electric |
| Max Power | 50 hp / 36.5 kW @ 10500 rpm |
| Max Torque | 3.6 kgf-m @ 9000 rpm |
| Clutch | Wet, multiple discs, cable operated |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Frame | Iron, Double cradle frame |
| Front Suspension | 38mm Telescopic forks |
| Front Wheel Travel | 130 mm / 5.1 in |
| Rear Suspension | Swinging arm, single shock adjustable for spring preload |
| Rear Wheel Travel | 100 mm / 3.9 in |
| Front Brakes | Single disc |
| Rear Brakes | Single disc |
| Front Tyre | 110/70-17 |
| Rear Tyre | 130/70-17 |
| Dry Weight | 177 kg / 390 lbs |
| Fuel Capacity | 16 Litres / 3.9 US gal |
