The Kawasaki GPz 400R, also known as the ZX 400, is a motorcycle model created in 1986 by Kawasaki. The bike runs on a four-stroke, transverse four-cylinder, DOHC engine with 4 valves per cylinder, with a 399cc capacity and bore x stroke of 57 39 mm. It is a liquid-cooled engine with a compression ratio of 11.5:1 and is powered by 4 Keihin CVKD30 carburetors. The ignition is CDI and the starting method is electric. The maximum power achieved is 59 hp / 44 kW @ 12000 rpm, with a maximum torque of 3.6 kgf-m / 26.0 lb-ft @ 10500 rpm. The clutch is a wet multi-disc, and the transmission has 6 speeds with a final drive of Chain Gear Ratio. The motorcycle’s frame is made of aluminum diamond tubular, double cradle, with a front suspension of 41mm telescopic forks, and the rear suspension is a rising rate monoshock. The front brakes consist of 2x 300mm discs with 4 piston calipers, while the rear brake is a single 240mm disc with 1 piston caliper. The front and rear tires are 100/90-16 and 130/90-16, respectively, and the bike has a rake of 24 degrees and a trail of 87mm / 3.4 in. The wheelbase is 1395 mm / 54.9 in and the seat height is 770 mm / 30.3 in. The dry weight of the motorcycle is 176 kg / 388 lbs, and the fuel capacity is 16 Litres / 4.2 US gal.
Technical specifications:
Make Model: Kawasaki GPz 400R / ZX 400
| Year | 1986 |
|---|---|
| Engine | Four stroke, transverse four cylinder, DOHC, 4 Valve per cylinder. |
| Capacity | 399 cc / 24.3 cu-in |
| Bore x Stroke | 57 39 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 11.5:1 |
| Induction | 4x Keihin CVKD30 carburetors |
| Ignition | CDI |
| Starting | Electric |
| Max Power | 59 hp / 44 kW @ 12000 rpm |
| Max Torque | 3.6 kgf-m / 26.0 lb-ft @ 10500 rpm |
| Clutch | Wet multi disc |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Gear Ratio | 1st 2,571 2nd 1,777 3rd 1,38 4th 1,125 5th 0,961 6th 0,851 |
| Frame | Aluminum diamond tubular, double cradle |
| Secondary Reduction Ratio | 2.933 (44/15) |
| Total Reduction Ratio | (6-speed) 7.154 |
| Front Suspension | 41mm Telescopic forks |
| Rear Suspension | Rising rate monoshock |
| Front Brakes | 2x 300mm discs 4 piston calipers |
| Rear Brakes | Single 240mm disc 1 piston caliper |
| Front Tyre | 100/90-16 |
| Rear Tyre | 130/90-16 |
| Rake | 24 degrees |
| Trail | 87mm / 3.4 in |
| Wheelbase | 1395 mm / 54.9 in |
| Seat Height | 770 mm / 30.3 in |
| Dry Weight | 176 kg / 388 lbs |
| Fuel Capacity | 16 Litres / 4.2 US gal |
