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2023 Kawasaki Ninja 400 Overview
The 2023 Kawasaki Ninja 400 is a sport motorcycle built around 399 cc of displacement. Under the tank sits a Four stroke, parallel twin, DOHC, 4 valves per cylinder engine, a compression ratio of 11.5:1. 2023 Kawasaki Ninja 400 delivers 33.4 kW of peak power and 37 Nm @ 8,000 rpm of torque. From a practical standpoint, the 2023 Ninja 400 tips the scales at 168 kg, carries a 14-litre fuel tank, offers a seat height of 785 mm and spans a 1370 mm wheelbase. Scroll down for the complete 2023 Kawasaki Ninja 400 spec sheet covering every technical detail from suspension travel to tyre sizes.
2023 Ninja 400 - Pros & Cons
Strengths
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⚡
Strong power output: 2023 Kawasaki Ninja 400 makes 33.4 kW with 37 Nm @ 8,000 rpm of torque - competitive figures for its class.
Considerations
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ℹ️
Age-related wear: As with any used Ninja 400, a thorough pre-purchase inspection covering consumables, service history and tyres is always recommended.
Owner Experiences & Common Issues
General ownership notes
The 2023 Kawasaki Ninja 400 has built a reputation for solid everyday reliability when serviced to schedule. As with any motorcycle of this era, documented service history is the single biggest indicator of long-term reliability when buying used.
Ninja 400 - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2023 Kawasaki Ninja 400, 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 Ninja 400 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 Ninja 400. 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.
2023 Kawasaki Ninja 400 - Frequently Asked Questions
What engine does the 2023 Kawasaki Ninja 400 have?
The 2023 Kawasaki Ninja 400 uses a Four stroke, parallel twin, DOHC, 4 valves per cylinder engine with 399 cc of displacement. It is liquid cooled.
How much does the 2023 Kawasaki Ninja 400 weigh?
The 2023 Kawasaki Ninja 400 weighs 168 kg. This is the manufacturer's wet figure.
How much power does the 2023 Kawasaki Ninja 400 make?
The 2023 Kawasaki Ninja 400 produces 33.4 kW of power and 37 Nm @ 8,000 rpm of torque. These are peak figures.
What is the fuel tank capacity of the 2023 Kawasaki Ninja 400?
The 2023 Kawasaki Ninja 400 has a 14-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 233-280 km between stops.
Is the 2023 Kawasaki Ninja 400 suitable for shorter riders?
The 2023 Kawasaki Ninja 400 has a seat height of 785 mm. This is a moderate seat height that suits a wide range of rider heights.
What brakes does the 2023 Kawasaki Ninja 400 have?
The 2023 Kawasaki Ninja 400 uses Single 310mm semi-floating petal disc. Caliper: Single balanced actuation dual piston at the front and Single 220 mm petal disc. Caliper: Dual-piston at the rear.
What tyre sizes does the 2023 Kawasaki Ninja 400 use?
The 2023 Kawasaki Ninja 400 runs 110/70R17 M/C 54 H front and 150/60R17 M/C 66 H rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2023 Kawasaki Ninja 400 have?
The 2023 Kawasaki Ninja 400 is fitted with a 6 Speed transmission.
Key Specifications
Engine
Four stroke, parallel twin, DOHC, 4 valves per cylinder
Power
33.4 kW / 45 hp @10000 rpm
Torque
37 Nm / 27.3 lb-ft @ 8,000 rpm
Weight
168 kg / 370.3 lbs
Fuel Capacity
14 Litres / 3.7 US gal
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Full 2023 Kawasaki Ninja 400 Specifications
Year
2023
Make Model
Kawasaki Ninja 400
Seat Height
785 mm / 30.9 in
Wheelbase
1370 mm / 53.9 in
Ground Clearance
140 mm / 5.5 in
Height
1120 mm / 44.0 in
Length
1990 mm / 78.3 in
Width
710 mm / 27.9 in
Fuel Capacity
14 Litres / 3.7 US gal
Wet Weight
168 kg / 370.3 lbs
Displacement
399 cc / 24.3 cu-in
Engine Detail
Four stroke, parallel twin, DOHC, 4 valves per cylinder
Bore x Stroke
70 x 51.8 mm
Compression Ratio
11.5:1
Cooling System
Liquid cooled
Emissions
EURO5
Fuel Induction
DFI with 32mm x 2 throttle bodies
Ignition
TCBI with digital advance
Lubrication
Forced lubrication, wet sump
Starter
Electric
Clutch
Wet multi-disc, manual
Final Drive
Chain
Final Drive Ratio
2.929 (41/14)
Gear Ratios
1st 2.929 (41/14) 2nd 2.056 (37/18) 3rd 1.619 (34/21) 4th 1.333 (32/24) 5th 1.154 (30/26) 6th 1.037 (28/27)
Primary Drive Ratios
2.219 (71/32)
Transmission / Drive
6 Speed
Frame Type
Trellis, high-tensile steel
Suspension - Front
41mm Telescopic fork
Suspension - Rear
Bottom-Link Uni-Trak, gas-charged shock with adjustable preload
Rake
24.5°
Trail
92 mm / 3.7 in
Wheel Travel - Front
120 mm / 4.7 in
Wheel Travel - Rear
130 mm / 5.1 in
Brakes - Front
Single 310mm semi-floating petal disc. Caliper: Single balanced actuation dual piston
Brakes - Rear
Single 220 mm petal disc. Caliper: Dual-piston
ABS
Standard
Tyres - Front
110/70R17 M/C 54 H
Tyres - Rear
150/60R17 M/C 66 H
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