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2015 Kawasaki Z 800 Overview
The 2015 Kawasaki Z 800 is a naked bike motorcycle built around 806 cc of displacement. Under the tank sits a V2, four-stroke engine running Double Overhead Cams/Twin Cam (DOHC) valve actuation, a compression ratio of 11.9:1. 2015 Kawasaki Z 800 delivers 83 kW @ 10200 rpm of peak power and 83 Nm @ 8000 rpm of torque. From a practical standpoint, the 2015 Z 800 tips the scales at 229 kg, carries a 17-litre fuel tank, offers a seat height of 834 mm and spans a 1445 mm wheelbase. That's roughly 20.5 kg heavier than the average naked bike motorcycle in our database. Scroll down for the complete 2015 Kawasaki Z 800 spec sheet covering every technical detail from suspension travel to tyre sizes.
2015 Z 800 - Pros & Cons
Strengths
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Strong power output: 2015 Kawasaki Z 800 makes 83 kW @ 10200 rpm with 83 Nm @ 8000 rpm of torque - competitive figures for its class.
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🔧
Fuel injection: The fuel injection: 34 mm x 4 (Mikuni) system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
Considerations
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Tall seat height: The 834 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.
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Chain final drive upkeep: Chain final drive needs regular cleaning, lubrication and tension checks to get full life out of the sprockets.
Wear Points & Servicing Notes
Cooling system servicing
The Liquid cooled system on the Z 800 needs a coolant change roughly every two years (or per the service schedule) - skipping it lets the coolant turn acidic and corrode the aluminium water passages over time.
Fuelling & injector care
Fuelling comes from fuel injection: 34 mm x 4 (Mikuni). Systems like this are largely maintenance-free beyond keeping fuel quality decent and injectors clear - a fuel-system cleaner every service interval is cheap insurance.
Valve clearance checks
Double Overhead Cams/Twin Cam (DOHC) valve actuation on the Z 800 means clearances should be checked at the manufacturer's specified interval - they can tighten as mileage accumulates, and a light top-end tick is usually the first sign.
Brake disc and pad wear
The 2x semi-floating 310 mm discs 4 piston calipers front brake gives strong, progressive stopping power. Disc thickness and pad depth are worth checking at every tyre change, since worn pads can score the disc surface.
Suspension condition on used examples
Up front, the Z 800 runs 41 mm inverted fork with rebound damping and spring preload adjustability, and Bottom-Link Uni-Trak, gas-charged shock with piggyback reservoir and stepless rebound damping and preload adjustability, at the rear. On a used example, check fork seals for weeping oil and test the rear linkage for play - seals are a relatively cheap fix but useful when negotiating price.
Final drive maintenance
Final drive is by chain - expect to clean and lube it every few hundred kilometres and check tension regularly; a neglected chain wears the sprockets faster than the chain itself.
Frame & chassis check
The frame is Tubular backbone (with engine sub-frame), high-tensile steel - worth a visual check for corrosion or impact damage around the head-stock and swingarm pivot on any used example, since frame damage is far costlier to fix than any service item.
Handling the weight at a standstill
At 229 kg, the Z 800 is a substantial machine - low-speed manoeuvring in car parks takes more physical effort than on a lighter bike, though the weight disappears once rolling.
Z 800 - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2015 Kawasaki Z 800, 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 800 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 800. 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 800'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 800. A bike with clearances out of spec doesn't always feel obviously wrong - but tight clearances accelerate valve seat wear. Ask for service documentation proving it's been done.
2015 Kawasaki Z 800 - Frequently Asked Questions
What engine does the 2015 Kawasaki Z 800 have?
The 2015 Kawasaki Z 800 uses a V2, four-stroke engine with 806 cc of displacement. It is liquid cooled.
How much does the 2015 Kawasaki Z 800 weigh?
The 2015 Kawasaki Z 800 weighs 229 kg. This is the manufacturer's wet figure.
How much power does the 2015 Kawasaki Z 800 make?
The 2015 Kawasaki Z 800 produces 83 kW @ 10200 rpm of power and 83 Nm @ 8000 rpm of torque. These are peak figures.
What is the fuel tank capacity of the 2015 Kawasaki Z 800?
The 2015 Kawasaki Z 800 has a 17-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 283-340 km between stops.
Is the 2015 Kawasaki Z 800 suitable for shorter riders?
The 2015 Kawasaki Z 800 has a seat height of 834 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.
What brakes does the 2015 Kawasaki Z 800 have?
The 2015 Kawasaki Z 800 uses 2x semi-floating 310 mm discs 4 piston calipers at the front and Single 220mm disc 1 piston caliper at the rear.
What tyre sizes does the 2015 Kawasaki Z 800 use?
The 2015 Kawasaki Z 800 runs 120/70 ZR17 front and 180/55ZR17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2015 Kawasaki Z 800 have?
The 2015 Kawasaki Z 800 is fitted with a 6 Speed transmission.
Kawasaki Z 800 Spec Evolution
The Kawasaki Z 800 was produced across 4 model years (2013-2017). 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 |
2013 |
2014 |
2016 |
2017 |
| Wet Weight |
229 kg / 504.8 lbs ABS 231 kg / 509.2 lbs |
229 kg / 504.8 lbs ABS 231 kg / 509.2 lbs |
229 kg / 504.8 lbs ABS 231 kg / 509.2 lbs |
227.0 kg / 500.4 lbs |
| Engine Type |
V2, four-stroke |
V2, four-stroke |
V2, four-stroke |
In-line four, four-stroke |
| Seat Height |
834 mm / 32.8 in |
834 mm / 32.8 in |
834 mm / 32.8 in |
834 mm / 32.8 in. |
| Fuel Capacity |
17 Litres / 4.5 US gal |
17 Litres / 4.5 US gal |
17 Litres / 4.5 US gal |
17.00 litres / 4.49 gallons |
| Fuel Control |
OHV |
DOHC |
Double Overhead Cams/Twin Cam (DOHC) |
Double Overhead Cams/Twin Cam (DOHC) |
| Brakes - Front |
2x semi-floating 310 mm discs 4 piston calipers |
2x semi-floating 310 mm discs 4 piston calipers |
2x semi-floating 310 mm discs 4 piston calipers |
Double disc. Floating discs. |
| Wheelbase |
1445 mm / 56.8 in |
1445 mm / 56.8 in |
1445 mm / 56.8 in |
1,445 mm / 56.9 in. |
| Brakes - Rear |
Single 220mm disc 1 piston caliper |
Single 220mm disc 1 piston caliper |
Single 220mm disc 1 piston caliper |
Single disc. Single-piston caliper. |
Key Specifications
Power
83.0 kW / 113 hp @ 10200 rpm
Torque
83.0 Nm / 8.5 kg-fm @ 8000 rpm
Top Speed
Not published by manufacturer
Weight
229 kg / 504.8 lbs ABS 231 kg / 509.2 lbs
Fuel Capacity
17 Litres / 4.5 US gal
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Full 2015 Kawasaki Z 800 Specifications
Year
2015 - 16
Colours
Green/Black, Black/grey, White/gray
Make Model
Kawasaki Z 800
Ground Clearance (mm)
150 mm
Ground Clearance (in.)
5.9 inches
Seat Height
834 mm / 32.8 in
Wheelbase
1445 mm / 56.8 in
Ground Clearance
150 mm / 5.9 in
Height
1050 mm / 41.3 ib
Length
2100 mm / 82.6
Width
800 mm / 31.4 in
Fuel Capacity
17 Litres / 4.5 US gal
Wet Weight
229 kg / 504.8 lbs ABS 231 kg / 509.2 lbs
Fuel Control
Double Overhead Cams/Twin Cam (DOHC)
Engine Type
V2, four-stroke
Displacement
806 cc / 49.1 cu-in
Engine Detail
Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder
Fuel System
Injection. 34 mm x 4 (Mikuni), with dual throttle valves
Bore x Stroke
71 x 50.9 mm
Compression Ratio
11.9:1
Cooling System
Liquid cooled
Engine Lubrication
Forced lubrication, wet sump
Fuel Induction
Fuel injection: 34 mm x 4 (Mikuni), with dual throttle valves
Ignition
Digital
Lubrication
Forced lubrication, wet sump
Starter
Electric
Valve System
4
Clutch
Wet multi-disc, manual
Final Drive
Chain
Final Drive Ratio
3.000 (45/15)
Gear Ratios
1st 2.571 (36/14) 2nd 1.941 (33/17) 3rd 1.556 (28/18) 4th 1.333 (28/21) 5th 1.200 (24/20) 6th 1.095 (23/21)
Gearbox
6-speed
Primary Drive
Sealed chain
Primary Drive Ratios
1.714 (84/49)
Transmission / Drive
6 Speed
Frame Type
Tubular backbone (with engine sub-frame), high-tensile steel
Suspension - Front
41 mm inverted fork with rebound damping and spring preload adjustability,
Suspension - Rear
Bottom-Link Uni-Trak, gas-charged shock with piggyback reservoir and stepless rebound damping and preload adjustability,
Rake
31.0°
Steering Angle
31° / 31°
Wheel Travel - Front
120 mm 4.7 in
Wheel Travel - Rear
137 mm / 5.3 in
Brakes - Front Diameter (in.)
12.2 inches
Brakes - Front Diameter (mm)
310 mm
Brakes - Rear Diameter (in.)
9.8 inches
Brakes - Rear Diameter (mm)
250 mm
Brakes - Front
2x semi-floating 310 mm discs 4 piston calipers
Brakes - Rear
Single 220mm disc 1 piston caliper
Tyres - Front
120/70 ZR17
Tyres - Rear
180/55ZR17
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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