| MODEL | KAWASAKI Z 400 1974 - 1975 |
| Year | 1974 - 1975 |
| Engine Type | Four stroke, parallel twin, SOHC, 2 valves per cylinder |
| Displacement / Capacity | 398 cc / 24.2 cu in |
| Bore X Stroke | 64 x 62 mm |
| Compression Ratio | 9.4:1 |
| Cooling System | Air cooled |
| Max Power | 36 hp / 26.8 kW @ 8500 rpm |
| Max Torque | 3.3 kgf-m / 23.8 lb-ft @ 7500 rpm |
| Ignition | Battery & coil |
| Induction | Keihin carburettors |
| Start System | Electric & kick |
| TRANSMISSION SPECS | |
| Lubrication | Forced lubrication, wet sump |
| Gear Box | 5 speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Tubular, double cradle |
| Front Suspension | Telescopic fork |
| Rear Suspension | Swing arm |
| Front Brakes | Single 226 mm disc |
| Rear Brakes | 180 mm drum |
| DIMENSION SPECS | |
| Overall Length | 2080 mm / 81.9 in |
| Overall Width | 775 mm / 30.5 in |
| Overall Height | 1050 mm / 41.3 in |
| Seat Height | — |
| Wheelbase | 1370 mm / 53.9 in |
| Ground Clearance | 125 mm / 4.9 in |
| Dry Weight | 175 kg / 386 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.25-18 4PR |
| Rear Tyre | 3.50-18 4PR |
| FUEL SYSTEM | |
| Fuel Capacity | 14 Litres / 3.6 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The original Z400, Kawasaki's 400 cc parallel twin that was built to compete with Honda's CB350 twin. The road test praises its balancer shaft that smooths vibration, its rigid frame, easy carburation and comfortable riding position. Weak points noted were the rear shocks, the front brake and a fuel tank that holds less usable fuel than stated.
