1974 Kawasaki KZ400

1974 Kawasaki KZ400

The 1974 1974 Kawasaki KZ400 is a 398cc twin-cylinder standard motorcycle that became one of Kawasaki's most memorable motorcycles of the 1970s.

Specifications

Engine

Type
DOHC twin
Displacement
398 cc
Cylinders
2
Power
36 hp @ 8500 rpm
Torque
32.0 Nm
Compression
Bore × Stroke
64.0 × 62.0 mm
Cooling
Air-cooled
Fuel System
2x Mikuni carburetors

Chassis & Transmission

Frame
Steel double cradle
Front Suspension
Telescopic fork
Rear Suspension
Twin shock
Front Brake
Single disc
Rear Brake
Drum
Front Tyre
Rear Tyre
Transmission
5-speed
Final Drive
Chain

Performance

Top Speed
155 km/h (96 mph)
¼ Mile

Dimensions & Weight

Dry Weight
177 kg (390 lbs)
Wet Weight
192 kg (423 lbs)
Seat Height
800 mm
Wheelbase
1370 mm
Ground Clearance
Fuel Capacity
14.0 L

History & Story

When Kawasaki unveiled the 1974 Kawasaki KZ400 in 1974, it signaled the company's commitment to the standard motorcycle segment. Built in Japan, this standard motorcycle embodied the spirit of 1970s motorcycling.

The 1974 Kawasaki KZ400 is motivated by a 398cc DOHC twin twin-cylinder unit delivering 36hp at 8500 rpm. Breathing through 2x Mikuni carburetors and kept cool by air-cooled, the engine drives through a 5-speed transmission with chain final drive.

Built around a steel double cradle frame, the 1974 Kawasaki KZ400 suspends its 177 kg (390 lbs) on telescopic fork forks and twin shock rear units. Braking relies on single disc at the front and drum at the rear, with a 1370 mm wheelbase providing stability.

Performance-wise, the 1974 Kawasaki KZ400 achieves a claimed top speed of 155 km/h (96 mph). With a fuel capacity of 14.0 liters, it offers reasonable range for standard motorcycle duties. The seat height of 800 mm makes it comfortable for most riders.

Known Issues

  • Cam chain issues on high-mileage engines
  • Oil leaks from gaskets and seals
  • Electrical system gremlins

Fun Facts

  • The 1974 Kawasaki KZ400 was produced in Kawasaki's Japan facilities
  • The 1974 Kawasaki KZ400 featured a steel double cradle frame typical of 1970s design philosophy

Collector Information

Parts Availability
Good
Collector Rating
4/10

Resources & Parts