2023 Kawasaki Z 900 Specifications

Name: 2023 Kawasaki Z 900
Brand: Kawasaki

Naked bike • Specs last verified 13 July 2026

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2023 Kawasaki Z 900 Overview

For 2023, Kawasaki offers the Z 900 as a naked bike motorcycle with 948 cc on tap. The 2023 Kawasaki Z 900 is built around an In-line four, four-stroke engine running Double Overhead Cams/Twin Cam (DOHC) valve actuation, a compression ratio of 11.8:1. Internally, bore and stroke are 73.4 x 56 mm. Out on the road, the Z 900 delivers 99.1 Nm @ 7700 Revolutions of torque. In everyday use, 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. That's roughly 11 kg heavier than the average naked bike in our database. Every technical detail, from suspension travel to tyre sizes, is covered in the full 2023 Kawasaki Z 900 spec sheet below.

2023 Kawasaki Z 900 compared with other bikes in the Naked bike category

Measured against other bikes in the Naked bike category in our database (up to 1666 models, one entry per model), the 2023 Kawasaki Z 900 comes out as follows.

With 99.1 Nm, the Z 900 has the joint 267th highest torque of 1318 bikes in the Naked bike category, 46% above the category average of 67.7 Nm.
Engine displacement of 948 cc is larger than that of 1211 of the other 1665 bikes in the Naked bike category.
Narrowing the field to the 347 models within five model years of it, the torque of 99.1 Nm is higher than that of 240 of the other 346.

Versus the 2022 model

Compared with the 2022 model, peak torque climbed from 98.6 Nm to 99.1 Nm (+0.5 Nm) and seat height was lowered from 820 mm to 800 mm (-20 mm). Wet weight and displacement are unchanged.

2023 Z 900 - Pros & Cons

Strengths

Fuel injection: No choke, no jetting, no altitude compensation to think about - fuel injection just works across a wider range of conditions than carburetion.
Strong front braking: The double disc front brake bites hard and stays consistent - a solid foundation whether it's stock or upgraded with braided lines.
ABS fitted: With ABS on board, hard braking on a damp or gravelly surface is far less likely to end in a locked wheel.

Considerations

Chain final drive upkeep: A chain drivetrain is the most common setup in its class, but it's also the one that demands the most regular hands-on maintenance.

Wear Points & Servicing Notes

Fuelling & injector care

Fuelling on the Z 900 comes from fuel injection. Cold starts and throttle response stay consistent across altitude and temperature, the main practical edge over a carbureted equivalent.

Valve clearance checks

Valve clearances on Double Overhead Cams/Twin Cam (DOHC)-equipped engines like the Z 900's drift slowly with mileage rather than failing suddenly - sticking to the service interval keeps it a non-issue.

Brake disc and pad wear

Double disc with ABS and four-piston calipers up front provides the primary stopping power; inspect disc thickness and pad wear at each tyre change to catch scoring before it becomes a rotor replacement.

Suspension condition on used examples

Suspension duties are handled by 41mm inverted fork with rebound damping and spring preload adjustability. ABS up front and Horizontal back-link, stepless rebound damping, adjustable spring preload. ABS at the rear. Weeping fork seals aren't a dealbreaker on a used bike, but they're a fair basis for negotiating price.

Final drive maintenance

Chain final drive on the Z 900 means routine lubing and tension checks are part of ownership - skip them and sprocket wear accelerates noticeably.

Frame & chassis check

The Trellis, high tensile steel chassis holds up well with normal use; on a used bike it's still worth checking the head-stock and swingarm pivot area for impact damage or corrosion.

Z 900 - Buying & Maintenance Guide

What to check before buying

A pre-purchase check on the 2023 Kawasaki Z 900 with its 948 cc naked bike should cover the same ground every time: service history, drivetrain condition, and any oil seepage around the casings. This model runs chain final drive, so check chain slack and sprocket tooth profile specifically - a worn sprocket is a cheaper fix now than after it's chewed up the next chain. Now 3 years old, this naked bike is as likely to show age-related wear (perished rubber, seized fasteners, degraded seals) as mileage-related wear. Start it from cold if you can - a well-kept Z 900 settles to a smooth idle within seconds.

Oil and filter changes

Oil changes are the cheapest insurance you can buy for the Z 900's 948 cc in-line four, four-stroke - keep to the manufacturer's interval rather than stretching it. With an 11.8:1 compression ratio, running the octane grade specified in the manual matters more than on a lower-compression engine. Use the viscosity grade the manual specifies, not whatever's on sale.

Fuel system care

Injector systems like the Z 900's hold up well with basic care - decent fuel, an occasional cleaner additive, and draining old fuel before any layup longer than three months.

Valve clearance service

There's no reliable seat-of-the-pants way to tell if a Z 900's valve clearances are in spec - a light top-end tick is the only real warning sign, and by then some wear has already happened. Service records are the only proof.

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 torque does the 2023 Kawasaki Z 900 produce?

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. At around 5-6 litres per 100 km, that is roughly 283-340 km between stops.

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 with ABS and four-piston calipers at the front and single disc with ABS and 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	-
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	-
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	-
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

Power

Not recorded

Torque

99.1 Nm (10.1 kgf-m or 73.1 ft.lbs) @ 7700 Revolutions

Top Speed

Not recorded

Weight

212.1 kg / 467.5 lbs

Fuel Capacity

17.03 litres / 4.50 US gallons

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 (in.) 5.7 inches

Ground Clearance (mm) 145 mm

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

Max Torque 99.1 Nm (10.1 kgf-m or 73.1 ft.lbs) @ 7700 Revolutions

Bore x Stroke (in,) 2.9 x 2.2 inches

Bore x Stroke (mm) 73.4 x 56.0 mm

Displacement (cc) 948.0 cc

Displacement (ci) 57.85 cubic inches

Engine Type In-line four, four-stroke

Fuel Control Double Overhead Cams/Twin Cam (DOHC)

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

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.