Kawasaki GPz 400R (1987)
The 1987 Kawasaki GPz 400R or ZX 400 is a four-stroke, transverse four-cylinder, DOHC motorbike with four valves per cylinder. It has a 399cc engine with a bore x stroke of 57 39mm and a cooling system that is liquid-cooled. The compression ratio of the bike is 11.5:1, and it is powered by 4x Keihin CVKD30 carburetors with CDI ignition. The bike has an electric starting system and can produce a maximum power of 59hp at 12,000rpm and a maximum torque of 3.6kgf-m at 10,500rpm. It also comes with a wet multi-disc clutch and a six-speed transmission with a final chain drive.
This bike has an aluminum diamond tubular, double cradle frame, and a front suspension with 41mm telescopic forks and a rear suspension with a rising rate monoshock. The front brakes consist of 2x 300mm discs and four-piston calipers, while the rear brakes feature a single 240mm disc and a single-piston caliper. The front and rear tyres have dimensions of 100/90-16 and 130/90-16, respectively. The GPz 400R has a rake angle of 24 degrees, a trail of 87mm/3.4 inches, a wheelbase of 1395mm/54.9 inches, and a seat height of 770mm/30.3 inches. The dry weight of the motorbike is 176kg/388 pounds, and the fuel capacity is 16 litres/4.2 US gallons.
Technical specifications:
Make Model: Kawasaki GPz 400R / ZX 400
Year: 1987
Engine: Four stroke, transverse four cylinder, DOHC, 4 Valve per cylinder.
Capacity: 399 cc / 24.3 cu-in
Bore x Stroke: 57 39 mm
Cooling System: Liquid cooled
Compression Ratio: 11.5:1
Induction: 4x Keihin CVKD30 carburetors
Ignition: CDI
Starting: Electric
Max Power: 59 hp / 44 kW @ 12000 rpm
Max Torque: 3.6 kgf-m / 26.0 lb-ft @ 10500 rpm
Clutch: Wet multi disc
Transmission: 6 Speed
Final Drive: Chain
Gear Ratio: 1st 2,571 2nd 1,777 3rd 1,38 4th 1,125 5th 0,961 6th 0,851
Frame: Aluminum diamond tubular, double cradle
Secondary Reduction Ratio: 2.933 (44/15)
Total Reduction Ratio: (6-speed) 7.154
Front Suspension: 41mm Telescopic forks
Rear Suspension: Rising rate monoshock
Front Brakes: 2x 300mm discs 4 piston calipers
Rear Brakes: Single 240mm disc 1 piston caliper
Front Tyre: 100/90-16
Rear Tyre: 130/90-16
Rake: 24 degrees
Trail: 87mm / 3.4 in
Wheelbase: 1395 mm / 54.9 in
Seat Height: 770 mm / 30.3 in
Dry Weight: 176 kg / 388 lbs
Fuel Capacity: 16 Litres / 4.2 US gal
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