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2025 Yamaha YZF-R9 Overview
The 2025 Yamaha YZF-R9 is a sport motorcycle built around 889 cc of displacement. Under the tank sits a Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder engine, a compression ratio of 11.5:1. 2025 Yamaha YZF-R9 delivers 117.4 hp @ 10000 rpm of peak power and 93 Nm @ 7000 rpm of torque. From a practical standpoint, the 2025 YZF-R9 tips the scales at 195 kg, carries a 14-litre fuel tank, offers a seat height of 831 mm and spans a 1420 mm wheelbase. Scroll down for the complete 2025 Yamaha YZF-R9 spec sheet covering every technical detail from suspension travel to tyre sizes.
2025 Yamaha YZF-R9 compared with other bikes in the Sport category
Here is how the 2025 Yamaha YZF-R9 stacks up against other bikes in the Sport category in our database. Each model counts once, using the model year closest to this one, and the comparison covers up to 1607 models.
- Seat height of 831 mm is taller than that of 1390 of the other 1606 bikes in the Sport category.
- Only 261 of the other 726 bikes in the Sport category have a higher power-to-weight ratio than the 449 W/kg of the YZF-R9.
- Narrowing the field to the 334 models within five model years of it, the seat height of 831 mm is taller than that of 234 of the other 333.
2025 YZF-R9 - Pros & Cons
Strengths
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Strong power output: 2025 Yamaha YZF-R9 makes 117.4 hp @ 10000 rpm with 93 Nm @ 7000 rpm of torque - competitive figures for its class.
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Fuel injection: The fuel injectionwith YCC-T system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
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Strong front braking: The disc front brake gives excellent stopping power and responds well to aftermarket braided lines.
Considerations
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Tall seat height: The 831 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 YZF-R9 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 injectionwith YCC-T. 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.
Brake disc and pad wear
The disc 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 YZF-R9 runs Telescopic fork, fully adjustable KYB and Swingarm 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 Aluminium Deltabox - 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.
YZF-R9 - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2025 Yamaha YZF-R9 with its 889 cc sport, start with the basics: check the service book for oil change frequency, inspect the drivetrain for wear, and look for oil seepage around the engine casings and rocker covers. 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. A cold start test is invaluable - a well-maintained YZF-R9 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 for the YZF-R9's 889 cc four stroke, transverse triple cylinder, dohc, 4 valves per cylinder. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. With an 11.5:1 compression ratio, running the octane grade specified in the manual matters more than on a lower-compression engine. Always use the correct viscosity grade as specified in the owner's manual.
Fuel system care
The YZF-R9'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.
2025 Yamaha YZF-R9 - Frequently Asked Questions
What engine does the 2025 Yamaha YZF-R9 have?
The 2025 Yamaha YZF-R9 uses a Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder engine with 889 cc of displacement. It is liquid cooled.
How much does the 2025 Yamaha YZF-R9 weigh?
The 2025 Yamaha YZF-R9 weighs 195 kg. This is the manufacturer's wet figure.
How much power does the 2025 Yamaha YZF-R9 make?
The 2025 Yamaha YZF-R9 produces 117.4 hp @ 10000 rpm of power and 93 Nm @ 7000 rpm of torque. These are peak figures.
What is the fuel tank capacity of the 2025 Yamaha YZF-R9?
The 2025 Yamaha YZF-R9 has a 14-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 233-280 km between stops.
Is the 2025 Yamaha YZF-R9 suitable for shorter riders?
The 2025 Yamaha YZF-R9 has a seat height of 831 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 2025 Yamaha YZF-R9 have?
The 2025 Yamaha YZF-R9 uses 2x 320mm hydraulic discs, 4-piston calipers, Brembo Stylema radial master cylinder at the front and single 220mm hydraulic disc, single piston caliper at the rear.
What tyre sizes does the 2025 Yamaha YZF-R9 use?
The 2025 Yamaha YZF-R9 runs 120/70 ZR17 M/C front and 180/55 ZR17 M/C rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2025 Yamaha YZF-R9 have?
The 2025 Yamaha YZF-R9 is fitted with a Constant mesh 6-speed transmission transmission.
Key Specifications
Engine
Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder
Power
117.4 hp / 119PS / 87.5 kW @ 10000 rpm
Torque
93 Nm / 68.6lb-ft @ 7000 rpm
Fuel Capacity
14 Litres / 3.7 US gal
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Full 2025 Yamaha YZF-R9 Specifications
Year
2025
Make Model
Yamaha YZF-R9
Seat Height
831 mm / 32.5 in
Wheelbase
1420 mm / 55.9 in
Ground Clearance
140 mm / 5.5 in
Height
1181 mm / 46.5.in
Length
1181 mm / 46.5.in
Width
706 mm / 27.8 in
Fuel Capacity
14 Litres / 3.7 US gal
Wet Weight
195 kg / 430 lbs
Displacement
889 cc / 54.2 cu-in
Engine Detail
Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder
Bore x Stroke
78 x 62.1 mm
Compression Ratio
11.5:1
Cooling System
Liquid cooled
Fuel Induction
Fuel injection with YCC-T
Ignition
TCI: Transistor Controlled Ignition
Lubrication
Wet sump
Starter
Electric
Clutch
Multiplate assist and slipper clutch
Final Drive
O-ring chain
Primary Drive Ratios
1.681 (79/47)
Transmission / Drive
Constant mesh 6-speed transmission
Frame Type
Aluminium Deltabox
Suspension - Front
Telescopic fork, fully adjustable KYB
Suspension - Rear
Swingarm (link suspension), fully-adjustable KYB
Rake
22.35°
Trail
94 mm / 3.7 in
Wheel Travel - Front
119 mm / 4.7 in
Wheel Travel - Rear
117 mm / 4.6 in
Brakes - Front
2x 320mm hydraulic discs, 4-piston calipers, Brembo Stylema radial master cylinder
Brakes - Rear
Single 220mm hydraulic disc, single piston caliper
ABS
Standard
Tyres - Front
120/70 ZR17 M/C (58W)
Tyres - Rear
180/55 ZR17 M/C (73W)
Wheels - Front
MT3.5 x 17 M/C
Wheels - Rear
MT5.50 x 17 M/C
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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