What category is the 1981 Kawasaki Z 400 J?

The 1981 Kawasaki Z 400 J has a Category of Naked bike.

What is the engine size of the 1981 Kawasaki Z 400 J?

The 1981 Kawasaki Z 400 J has a Capacity: of 399.00 ccm (24.35 cubic inches).

What type of engine does the 1981 Kawasaki Z 400 J have?

The 1981 Kawasaki Z 400 J has a Engine type of In-line four, four-stroke.

What is the engine power of the 1981 Kawasaki Z 400 J?

The 1981 Kawasaki Z 400 J has a Power of 27.00.

What is the top speed of the 1981 Kawasaki Z 400 J?

The 1981 Kawasaki Z 400 J has a Top speed of 154.0 km/h (95.7 mph).

Is the 1981 Kawasaki Z 400 J air cooled or liquid cooled?

The 1981 Kawasaki Z 400 J has a Cooling system of Air.

How many gears does the 1981 Kawasaki Z 400 J have?

The 1981 Kawasaki Z 400 J has a Gearbox of 6-speed.

How much does the 1981 Kawasaki Z 400 J weigh?

The 1981 Kawasaki Z 400 J has a Weight incl. oil, gas, etc of 210.0 kg (463.0 pounds).

Kawasaki Z 400 J - 1981 Specifications and Reviews

Name: 1981 Kawasaki Z 400 J
Brand: Kawasaki
Rating: 5 (1 reviews)

The 1981 Kawasaki Z 400 J is a lightweight naked bike ideal for novice riders seeking an accessible entry into motorcycling. Its modest 27 horsepower from a four-cylinder engine delivers smooth, manageable power with impressive fuel efficiency. Best known for reliable everyday performance and nimble handling, this air-cooled middleweight remains a popular choice for commuting and casual riding.

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1981

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General information
Category	Naked bike
Year	1981
Model	Kawasaki Z 400 J
Engine and Transmission Specifications
Transmission type,final drive	Chain
Gearbox	6-speed
Cooling system	Air
Fuel control	DOHC
Valves per cylinder	2
Bore x stroke	52.0 x 47.0 mm (2.0 x 1.9 inches)
Compression	9.5:1
Top speed	154.0 km/h (95.7 mph)
Power	27.00
Engine type	In-line four, four-stroke
Capacity:	399.00 ccm (24.35 cubic inches)
Brakes, suspension, Frame and wheels
Rear brakes	Expanding brake
Front brakes	Dual disc
Rear tyre dimensions	3.75-18
Front tyre dimensions	3.25-19

Physical measures and capacities
Fuel capacity	16.50 litres (4.36 gallons)
Weight incl. oil, gas, etc	210.0 kg (463.0 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

27 hp

Peak Power

8.5s

0-60 mph

95.7 mph

Top Speed

Best For

Track30%

City65%

Cornering60%

Daily Riding60%

Touring40%

Passenger35%

Rider Profile

Best For	This is a friendly, forgiving machine well suited to newer riders or those returning to biking after time away.
Purpose	It was built as an accessible small-displacement naked bike for everyday commuting and learning classic four-cylinder character rather than outright performance.
Rider Fit	Its modest weight and low seat make it easy to manage at a stop and comfortable for smaller or less experienced riders.
Character	The air-cooled inline-four DOHC engine gives a smooth, characterful buzz and classic retro appeal rather than raw speed.
Not Ideal For	It is not the right choice for riders seeking serious highway touring range, passenger comfort, or off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.