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2023 Kawasaki Z 900 Overview
The 2023 Kawasaki Z 900 is a naked bike motorcycle built around 948 cc of displacement. Under the tank sits an In-line four, four-stroke engine running Double Overhead Cams/Twin Cam (DOHC) valve actuation, a compression ratio of 11.8:1. The bore and stroke measures 73.4 x 56 mm. 2023 Kawasaki Z 900 delivers 99.1 Nm @ 7700 Revolutions" of torque. From a practical standpoint, the 2023 Z 900 tips the scales at 212.1 kg, carries a 17.03-litre fuel tank, offers a seat height of 800 mm and spans a 1455 mm wheelbase. Scroll down for the complete 2023 Kawasaki Z 900 spec sheet covering every technical detail from suspension travel to tyre sizes.
2023 Z 900 - Pros & Cons
Strengths
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Fuel injection: The fuel injection injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
Considerations
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ℹ️
Age-related wear: As with any used Z 900, a thorough pre-purchase inspection covering consumables, service history and tyres is always recommended.
Owner Experiences & Common Issues
Throttle response and fuelling
The fuel injection on the 2023 Kawasaki Z 900 is generally well-regarded. Some owners note a slight hesitation at small throttle openings when cold, which clears once the engine reaches operating temperature. A quick visual check of the injector connectors during routine servicing is good practice on higher-mileage examples.
Valve clearance checks
Double Overhead Cams/Twin Cam (DOHC) engines should have valve clearances checked at the manufacturer's specified interval. Owners report that clearances can tighten over time on higher-mileage bikes, leading to slight ticking from the top end. Catching it early keeps the job simple and avoids more costly remediation.
Z 900 - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2023 Kawasaki Z 900, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained Z 900 should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task on any Z 900. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.
Fuel system care
The Z 900's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.
Valve clearance service
Check that valve clearances have been adjusted at the correct intervals on any used Z 900. This is a job many owners skip because the bike does not immediately feel wrong - but tight clearances accelerate valve seat wear. Ask for proof it has been done.
2023 Kawasaki Z 900 - Frequently Asked Questions
What engine does the 2023 Kawasaki Z 900 have?
The 2023 Kawasaki Z 900 uses an In-line four, four-stroke engine with 948 cc of displacement.
How much does the 2023 Kawasaki Z 900 weigh?
The 2023 Kawasaki Z 900 weighs 212.1 kg. This is the manufacturer's wet figure.
How much power does the 2023 Kawasaki Z 900 make?
The 2023 Kawasaki Z 900 produces 99.1 Nm @ 7700 Revolutions" of torque.
What is the fuel tank capacity of the 2023 Kawasaki Z 900?
The 2023 Kawasaki Z 900 has a 17.03-litre fuel tank.
Is the 2023 Kawasaki Z 900 suitable for shorter riders?
The 2023 Kawasaki Z 900 has a seat height of 800 mm. This is a moderate seat height that suits a wide range of rider heights.
What brakes does the 2023 Kawasaki Z 900 have?
The 2023 Kawasaki Z 900 uses Double disc. ABS. Four-piston calipers. at the front and Single disc. ABS. Single-piston caliper. at the rear.
What tyre sizes does the 2023 Kawasaki Z 900 use?
The front tyre size on the 2023 Kawasaki Z 900 is 120/70-ZR17.
Kawasaki Z 900 Spec Evolution
The Kawasaki Z 900 was produced across 8 model years (1976-2023). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
1976 |
2017 |
2018 |
2019 |
2020 |
2021 |
2022 |
2023 |
| Max Power |
81 hp / 59 kW @ 8500 rpm |
125 hp / 91.2 kW @ 9500 rpm |
125 hp / 91.2 kW @ 9500 rpm |
125 hp / 91.2 kW @ 9500 rpm |
92.2 kW / 123.6 hp @ 9500 rpm |
92.2 kW / 123.6 hp @ 9500 rpm |
92.2 kW / 123.6 hp @ 9500 rpm |
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| Wet Weight |
248 kb / 548 lbs |
210 kg / 463.1 lbs |
210 kg / 463.1 lbs |
210 kg / 463.1 lbs |
212 kg / 467.5 lbs |
212 kg / 467.5 lbs |
212 kg / 467.5 lbs |
212.1 kg / 467.5 lbs |
| Dry Weight |
230 kg / 507 lbs |
- |
- |
- |
- |
- |
212 kg / 467.4 lbs |
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| Engine Detail |
Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. |
Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder |
Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder |
Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder |
Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
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| Seat Height |
812.8 mm / 32.0 in. |
795 mm / 32.8 in |
795 mm / 32.8 in |
795 mm / 32.8 in |
820 mm / 32.2 in |
820 mm / 32.2 in |
820 mm / 32.2 in |
800 mm / 31.5 in. |
| Fuel Capacity |
18 Litres / 4.7 gal |
17 Litres / 4.5 US gal |
17 Litres / 4.5 US gal |
17 Litres / 4.5 US gal |
17 Litres / 4.5 US gal |
17 Litres / 4.5 US gal |
17 Litres / 4.5 US gal |
17.03 litres / 4.50 US gallons |
| Ground Clearance (mm) |
- |
130 mm |
- |
- |
130 mm |
130 mm |
145 mm |
145 mm |
| Ground Clearance (in.) |
- |
5.1 inches |
- |
- |
5.1 inches |
5.1 inches |
5.7 inches |
5.7 inches |
Key Specifications
Engine
In-line four, four-stroke
Torque
99.1 Nm (10.1 kgf-m or 73.1 ft.lbs) @ 7700 Revolutions"
Weight
212.1 kg / 467.5 lbs
Fuel Capacity
17.03 litres / 4.50 US gallons
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Full 2023 Kawasaki Z 900 Specifications
Comments
Power Mode Selection. Traction control. Smartphone Connectivity.
Colours
Metallic Spark Black/Metallic Graphite Gray/Metallic Flat Spark Black, Metallic Phantom Silver/Metallic Carbon Gray
Warranty
12 Month Limited Warranty
Ground Clearance (mm)
145 mm
Ground Clearance (in.)
5.7 inches
Seat Height
800 mm / 31.5 in.
Wheelbase
1455 mm / 57.3 in.
Height
1080 mm / 42.5 in.
Length
2070 mm / 81.5 in.
Width
826 mm / 32.5 in.
Fuel Capacity
17.03 litres / 4.50 US gallons
Wet Weight
212.1 kg / 467.5 lbs
Fuel Control
Double Overhead Cams/Twin Cam (DOHC)
Engine Type
In-line four, four-stroke
Displacement (ci)
57.85 cubic inches
Displacement (cc)
948.0 cc
Bore x Stroke (mm)
73.4 x 56.0 mm
Bore x Stroke (in,)
2.9 x 2.2 inches
Fuel System
Injection. DFI with 36mm Keihin throttle bodies
Compression Ratio
11.8:1
Engine Lubrication
Forced lubrication, wet sump
Ignition
TCBI with electronic advance
Starter
Electric
Valve System
4
Clutch
Assist and Slipper Clutch
Final Drive
Chain (final drive)
Gearbox
6-speed
Primary Drive
Sealed chain
Frame Type
Trellis, high tensile steel
Suspension - Front
41mm inverted fork with rebound damping and spring preload adjustability. ABS.
Suspension - Rear
Horizontal back-link, stepless rebound damping, adjustable spring preload. ABS.
Rake
24.9°
Trail
109 mm / 4.3 in.
Wheel Travel - Front
119 mm / 4.7 in.
Wheel Travel - Rear
140 mm / 5.5 in.
Instrumentation
TFT Color Instrumentation
Lighting system
LED headlight
Brakes - Front
Double disc. ABS. Four-piston calipers.
Brakes - Rear
Single disc. ABS. Single-piston caliper.
Rims
Dunlop Sportmax Roadsport 2 tires
Tyres - Front
120/70-ZR17
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