Kawasaki Z1000J (1981)

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The Kawasaki Z1000J motorcycle was manufactured in 1981 and had an engine capacity of 998cc. It was powered by a four-stroke, transverse four-cylinder, DOHC engine with 2 valves per cylinder. The bike had a compression ratio of 9.2:1 and used 4x 34mm Mikuni BS34 carburetors for induction. The CDI ignition system used NGK B8ES or ND W24ES-U spark plugs, and the bike had an electric starter. The maximum power of the bike was 102hp/76kW at 8500rpm, and it had a maximum torque of 9.3kgf-m/67lb-ft at 7000rpm. The transmission had five speeds, and the final drive was a chain with a sprocket configuration of 15 front and 41 rear. The bike had telescopic forks with coil air spring front suspension and swinging arm with dual dampers 7-way spring preload rear suspension. The front brakes had 2x 236mm discs and 1 piston caliper, while the rear brakes had a single 236mm disc and 1 piston caliper. The bike had a dry weight of 230kg/507lbs and a wet weight of 254kg/557.8lbs with a fuel capacity of 21.4 litres/5.5 US gal. The average fuel consumption was around 41 mpg, and it had a top speed of 210.8 km/h/131 mph. The bike could complete the standing 1/4 mile in 12.1 sec/ 112.5 mph.

Technical specifications:

Make Model: Kawasaki Z 1000J

Year: 1981


Engine: Four stroke, transverse four cylinder, DOHC, 2 Valve per cylinder.
Capacity: 998 cc / 60.9 cu-in
Bore x Stroke: 69.4 x 66 mm
Cooling System: Air cooled
Compression Ratio: 9.2:1
Induction: 4x 34mm Mikuni BS34 carburetors
Ignition: CDI
Spark Plug: Spark Plugs: NGK B8ES or ND W24ES-U
Starting: Electric
Max Power: 102 hp / 76 kW @ 8500 rpm
Max Torque: 9.3 kgf-m / 67 lb-ft @ 7000 rpm
Transmission: 5 Speed
Final Drive: Chain, 630 endless with 92 links, sprockets 15 front, 41 rear
Front Suspension: Telescopic forks, coil air spring
Rear Suspension: Swinging arm with dual dampers 7-way spring preload.

Front Brakes: 2x 236mm discs 1 piston calipers
Rear Brakes: Single 236mm disc 1 piston caliper
Front Tyre: 3.25 V19
Rear Tyre: 4.25 V18
Dry Weight: 230 kg / 507 lbs
Wet Weight: 254 kg / 557.8 lbs
Fuel Capacity: 21.4 Litres / 5.5 US gal
Consumption Average: 41 mpg
Standing 1/4 Mile: 12.1 sec / 112.5 mph
Top Speed: 210.8 km/h / 131 mph

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