Kawasaki Z1000
Specifications

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2003–2006
2007–2009
2010–2013
2014–2016
Engine type
Four-stroke, liquid-cooled, DOHC, four-cylinder, 16-valve
Four-stroke, liquid-cooled, DOHC, four-cylinder, 16-valve
Four-stroke, liquid-cooled, DOHC, four-cylinder, 16-valve
Four-stroke, liquid-cooled, DOHC, four-cylinder, 16-valve
Displacement
953 cc (58.2 cu in)
953 cc (58.2 cu in)
1,043 cc (63.6 cu in)
1,043 cc (63.6 cu in)
Bore & stroke
77.2 mm × 50.9 mm (3.04 in × 2.00 in)
77.2 mm × 50.9 mm (3.04 in × 2.00 in)
77.0 mm × 56.0 mm (3.03 in × 2.20 in)
77.0 mm × 56.0 mm (3.03 in × 2.20 in)
Top speed
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155 mph (249 km/h)
149.3 mph (240.3 km/h)
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Maximum torque
95.6 N⋅m (70.5 lbf⋅ft) @ 8,000 rpm(claimed)
98.7 N⋅m (72.8 lbf⋅ft) @ 8,200 rpm(claimed) 66.6 lb⋅ft (90.3 N⋅m) (rear wheel)
110 N⋅m (81 lbf⋅ft) @ 7,800 rpm(claimed)
111.0 N⋅m (81.9 lbf⋅ft) @ 7,300 rpm(claimed)) 74.9 lb⋅ft (101.6 N⋅m) (rear wheel)
Maximum power
93.4 kW (125.3 hp) @ 10,000 rpm(claimed)
92 kW (123 hp) @ 10,000 rpm(claimed) 108.8 hp (81.1 kW) (rear wheel)
101.5 kW (136.1 hp) @ 9,600 rpm(claimed)
104.5 kW (140.1 hp) @ 10,000 rpm(claimed) 125.8 hp (93.8 kW) (rear wheel)
Compression ratio
11.2:1
11.2:1
11.8:1
11.8:1
Fuel injection
38 mm diameter x 4
38 mm diameter x 4
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Ignition
Battery and coil
Battery and coil
Battery and coil
Battery and coil
Transmission
6-speed, constant mesh, return shift
6-speed, constant mesh, return shift
6-speed, constant mesh, return shift
6-speed, constant mesh, return shift
Clutch
Wet, multi disc
Wet, multi disc
Wet, multi disc
Wet, multi disc
Final drive
Chain
Chain
Chain
Chain
Frame type
Diamond, high-tensile steel
Backbone, high-tensile steel tubes and cast aluminum engine sub-frame
Twin-tube, aluminium
Twin-tube, aluminium
Rake / trail
24° / 101 mm (4.0 in)
24.5° / 103 mm (4.1 in)
24.5° / 103 mm (4.1 in)
24.5° / 103 mm (4.1 in)
Front suspension / wheel travel
41 mm inverted cartridge fork with stepless rebound damping and adjustable spring preload / 4.7 in.
41 mm inverted cartridge fork with stepless rebound damping and adjustable spring preload / 4.7 in.
41 mm inverted cartridge fork with stepless rebound damping and adjustable spring preload / 4.7 in.
Showa fully adjustable separate-function SFF-BP fork
Rear suspension / wheel travel
Bottom-Link Uni-Trak with gas-charged shock, stepless rebound damping and adjustable spring preload / 5.9 in.
Bottom-Link Uni-Trak with gas-charged shock, stepless rebound damping and adjustable spring preload / 5.9 in.
Bottom-Link Uni-Trak with gas-charged shock, stepless rebound damping and adjustable spring preload / 5.9 in.
Bottom-Link Uni-Trak with gas-charged shock, stepless rebound damping and adjustable spring preload / 5.9 in.
Front tire size
120/70 ZR17
120/70 ZR17
120/70 ZR17
120/70 ZR17
Rear tire size
190/50 ZR17
190/50 ZR17
190/50 ZR17
190/50 ZR17
Wheelbase
1,420 mm (56 in)
1,445 mm (56.9 in)
1,440 mm (57 in)
1,435 mm (56.5 in)
Front brake type
Dual disc
Dual disc petal rotors
Dual disc petal rotors
four-piston Monoblock front brake calipers
Rear brake type
Single disc
Single disc petal rotor
Single disc petal rotor
Single disc petal rotor
Fuel tank capacity
19 L (4.2 imp gal; 5.0 US gal)
18.5 L (4.1 imp gal; 4.9 US gal)
15 L (3.3 imp gal; 4.0 US gal)
17 L (3.7 imp gal; 4.5 US gal)
Curb weight
221 kg (487 lb)
228 kg (503 lb)
218 kg (481 lb)
220 kg (490 lb)
Seat height
820 mm (32 in)
820 mm (32 in)
820 mm (32 in)
815.34 mm (32.100 in)
Overall length
2,080 mm (82 in)
2,090 mm (82 in)
2,095 mm (82.5 in)
2,044.7 mm (80.50 in)
Overall width
770 mm (30 in)
780 mm (31 in)
805 mm (31.7 in)
789.94 mm (31.100 in)
Overall height
1,055 mm (41.5 in)
1,065 mm (41.9 in)
1,085 mm (42.7 in)
1,054.1 mm (41.50 in)
Road clearance
145 mm (5.7 in)
160 mm (6.3 in)
140 mm (5.5 in)
140 mm (5.5 in)

Question: What was the compression ratio when the fuel injection was 38mm?
Answer: Compression ratio was 11.8:1 and fuel injection was 38 mm.