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) vs Kawasaki GPz 400R / ZX 400 (1986) vs Kawasaki GPz 750 Turbo / ZX750-E1 (1984-85) vs Kawasaki VN 900 Vulcan Classic (2006-07) vs Kawasaki ZG 1300 Voyager (1984-86)

Comparison technical specifications

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Make:	Kawasaki	Kawasaki	Kawasaki	Kawasaki	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	GPz 400R / ZX 400	GPz 750 Turbo / ZX750-E1	VN 900 Vulcan Classic	ZG 1300 Voyager
Years:	1986-87	1984	1982	1995-99	1982	1986	2006	1986	1984-85	2006-07	1984-86
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	Four stroke, transverse four cylinder, DOHC, 4 Valve per cylinder.	Four stroke, turbocharged, transverse four cylinder, DOHC, 2 valves per cylinder	Four stroke V-Twin, SOHC, 4 valve	Four stroke transverse four cylinder. DOHC, 4 valve 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	399 cc / 24.3 cu-in	738 cc / 45.09 cu-in	903 cc / 49 cu-in	1286 cc / 78.5 cub 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	57 х 39 mm	66 x 54 mm	88.0 x 74.2 mm	62 x 71 mm
Cooling System:	Liquid cooled	Air cooled	Air cooled	Air cooled	Air cooled	Liquid cooled	Liquid cooled	Liquid 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	11.5:1	7.8:1	9.5:1	9.3;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	4x Keihin CVKD30 carburetors	Mikuni fuel injection	Fuel injection: ø 34 mm x 2 with dual throttles	Mikuni fuel injection
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	59 hp / 44 kW @ 12000 rpm	112 hp / 82.4 kW @ 9000 rpm	37 kW / 50 hp @ 5700 rpm	96.9 kW / 130 hp @ 8000 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	3.6 kgf-m / 26.0 lb-ft @ 10500 rpm	99.1Nm / 73.1ft-lb @ 6500 rpm	78 Nm / 8.0 kg-fm @ 3700 rpm	118 Nm / 12.03 kgf-m / 87 ft. lbs @ 6500 rpm
Final Drive:	Chain	#530 O-ring chain	Chain	Chain	#530 O-ring chain	Chain	Chain	Chain	Chain	Belt	Shaft
Front Suspension:	Telescopic forks	Telescopic forks		Telescopic forks	Telescopic forks	Air assisted forks, 160mm wheel travel.	Telescopic, coil spring, oil damped 43mm forks	41mm Telescopic forks	37mm air-adjustable forks, adjustable anti dive.	41mm telescopic fork with 7-way preload	41mm Kayaba air adjustable 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	Rising rate monoshock	Kawasaki Uni-Trak air-adjustable single shock, adjustable for rebound damping.	Uni-Trak with 7-way adjustable preload	Dual Kayaba shocks, fully adjustable.
Front Brakes:	Single disc	2X 260mm disc	Single disc	Single 300mm disc	2X 260mm disc	2x 270mm discs	2x 310mm discs 2 piston calipers	2x 300mm discs 4 piston calipers	2x 280mm discs	Single 300mm disc 2 piston caliper	2x 266mm discs 1 piston caliper
Rear Brakes:	Single drum	Single 260mm disc	Drum	Single 230mm disc	Single 260mm disc	Single 256mm disc	Single 260mm disc 1 piston caliper	Single 240mm disc 1 piston caliper	Single 270mm disc	Single 270mm disc 2 piston caliper	Single 296mm 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	100/90-16	110/90 V18	130/90 -16	130/90-16
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	130/90-16	130/80 V18	180/70 -15	150/90-15
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	16 Litres / 4.2 US gal	18 Litres / 4.8 US gal	20 Litres / 5.3 US gal.	27 Litres / 7.1 US gal