Kawasaki ZXR750 (1991)

The Kawasaki ZX-R 750-J motorcycle was released in 1991. It features a four-stroke, transverse four-cylinder engine with 4 valves per cylinder and a capacity of 749cc. The motorcycle is liquid-cooled and has a compression ratio of 10.8:1, with a maximum power of 100hp at 10500rpm. The transmission is six-speed, and the final drive is via chain. The frame is made of aluminum perimeter, and the front suspension features adjustable ride height and 13-way rebound. The rear suspension is uni-track monoshock, and the brakes are 2x 320mm discs with 4-piston calipers at the front and a single 230mm disc with 2-piston caliper at the rear. The front tire is 120/70ZR17 with a standard pressure of 36psi, and the rear tire is 180/55ZR17 with a standard pressure of 41psi. The motorcycle has a fuel capacity of 18 liters and a consumption average of 16.3 km/l. The braking distance from 60-0 and 100-0 is 13.3m and 37.1m, respectively. The standing 1/4 mile time is 11.2s with a speed of 196.2 km/h, and the top speed is 241 km/h.

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Technical specifications:

Make Model: Kawasaki ZX-R 750-J

Year: 1991

Engine: Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.

Capacity: 749 cc / 45.7 cu-in

Bore x Stroke: 71 x 47.3 mm

Cooling System: Liquid cooled

Compression Ratio: 10.8:1

Lubrication: Wet sump

Engine Oil: 10W/40

Induction: 4x 38 mm Keihin CVKD (Constant Velocity) carburettors / Ram Air System (single intake)

Ignition: Digital

Spark Plug: NGK, CR9E

Starting: Electric

Max Power: 100 hp / 74 kW @ 10500 rpm

Max Power Rear Tyre: 92.8 hp / 69.2 kW @ 10700 rpm

Max Torque: 7.45 kgf-m / 53.8 lb-ft @ 9000rpm

Clutch: Multi plate wet (oil submerged) hydraulic slipper clutch

Transmission: 6 Speed

Final Drive: Chain

Frame: Aluminium perimeter

Front Suspension: 43mm Upside-down forks, adjustable ride height, 13-way rebound

Front Wheel Travel: 120 mm / 4.7 in

Rear Suspension: Uni Track monoshock. adjustable ride height, preload, 4-way rebound

Rear Wheel Travel: 120 mm / 4.7 in

Front Brakes: 2x 320mm discs 4 piston calipers

Rear Brakes: Single 230mm disc 2 piston caliper

Front Tyre: 120/70ZR17 /Std Pressure 36psi

Rear Tyre: 180/55ZR17 /Std Pressure 41psi

Rake: 24.5 degrees

Trail: 95mm / 3.74 in

Wheelbase: 1420 mm / 55.9 in

Dry Weight: 195 kg / 420.9 lbs

Wet Weight: 221.6 kg / 487.2 lbs

Fuel Capacity: 18 Litres / 4.7 US gal

Consumption Average: 16.3 km/l

Braking 60 – 0 / 100 – 0: 13.3m / 37.1m

Standing 1/4 Mile: 11,2 sec / 196.2 km/h

Top Speed: 241 km/h / 149.7 mph