Kawasaki GPz 400S (1986-87) vs Kawasaki GPz 550 / Z 550GP (1984) vs Kawasaki KH 125FX (1982) vs Kawasaki BJ 250 Estrella RS (1995-99) vs Kawasaki GPz 550 / Z 550GP (1982) vs Kawasaki GPz 750R Ninja / ZX 750R (1986) vs Kawasaki KLV 1000 (2006)

Comparison technical specifications

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Make:	Kawasaki	Kawasaki	Kawasaki	Kawasaki	Kawasaki	Kawasaki	Kawasaki
Model:	GPz 400S	GPz 550 / Z 550GP	KH 125FX	BJ 250 Estrella RS	GPz 550 / Z 550GP	GPz 750R Ninja / ZX 750R	KLV 1000
Years:	1986-87	1984	1982	1995-99	1982	1986	2006
Engine:	Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder.	Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder.	Two stroke, single cylinder,	Four stroke, single cylinder, SOHV , 2 valves	Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder.	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, 90°-V-twin, DOHC, 4 valves per cylinder
Capacity:	399 cc / 24.3 cu-in	553 cc / 33.7 cu-in	124 cc / 7.6 cu-in	249 cc / 15.2 cu-in	553 cc / 33.7 cu-in	746 cc / 45.6 cu-in	996 cc / 60.7 cu-in
Bore x Stroke:	70 x 51 mm	58 x 52.4 mm	56 x 50.6 mm	66 X 63 mm	58 x 52.4 mm	70.0 x 48.6 mm	98 X 66 mm
Cooling System:	Liquid cooled	Air cooled	Air cooled	Air cooled	Air cooled	Liquid cooled	Liquid cooled
Compression Ratio:	10.7:1	10.0:1	7.0:1	9.0:1	10.0:1	10.5:1	11.3:1
Induction:	4x Kelhin CVM30 carburetors	4x 22mm Teikei constant vacuum - main jets #94		Carburetor	4x 22mm Teikei constant vacuum - main jets #94	4x 34mm Mikuni carburetors	Fuel Injection with 45mm throttle bodies
Max Power:	50 hp / 36.5 kW @ 10500 rpm	65 hp / 47.4 Nm @ 9000 rpm		20 hp / 14.9 kW @ 6000 rpm	58 hp / 42.3 Nm @ 9000 rpm	92 hp / 67.2 kW @ 10000 rpm	98 hp / 71.5 kW @ 7400 rpm
Max Torque:	3.6 kgf-m / 26 lb-ft @ 9000 rpm	35.5 lb-ft / 48.1 Nm @ 8000 rpm		21 Nm / 15.5 lb-ft @ 5000 rpm	35.5 lb-ft / 48.1 Nm @ 8000 rpm	7.2 kg-m / 52 lb-ft @ 8500 rpm	101 Nm / 78 lb-ft @ 6400 rpm
Final Drive:	Chain	#530 O-ring chain	Chain	Chain	#530 O-ring chain	Chain	Chain
Front Suspension:	Telescopic forks	Telescopic forks		Telescopic forks	Telescopic forks	Air assisted forks, 160mm wheel travel.	Telescopic, coil spring, oil damped 43mm forks
Rear Suspension:	Swing arm	Dual shocks, Swinging arm		Dual shocks	Dual shocks, Swinging arm	Single shock swinging arm, 109mm wheel travel.	Swingarm, coil spring, oil damped, adjustable for preload and rebound damping
Front Brakes:	Single disc	2X 260mm disc	Single disc	Single 300mm disc	2X 260mm disc	2x 270mm discs	2x 310mm discs 2 piston calipers
Rear Brakes:	Single drum	Single 260mm disc	Drum	Single 230mm disc	Single 260mm disc	Single 256mm disc	Single 260mm disc 1 piston caliper
Front Tyre:	100/90-16	3.25 H19	2.75-18	90/90-18 51 P	3.25 H19	120/80-16	110/80 R19
Rear Tyre:	120/90-16	3.75 H18	3.00 -18	110/90-17 60 P	3.75 H18	130/80-18	150/70 R17
Fuel Capacity:	15 Litres / 3.9 US gal	15 Litres / 3.9 US gal	11.6 Litres	14 Litres / 3.7 US gal	15 Litres / 3.9 US gal	22 Litres / 5.8 US gal	22 Litres / 5.8 US gal