2023 Yamaha YZ250FX Specifications

Name: 2023 Yamaha YZ250FX
Brand: Yamaha

Enduro / Off-Road • Specs last verified 13 July 2026

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2023 Yamaha YZ250FX Overview

The 2023 Yamaha YZ250FX is an enduro / off-road motorcycle built around 250 cc of displacement. Under the tank sits a Single cylinder, four-stroke engine running Double Overhead Cams/Twin Cam (DOHC) valve actuation, a compression ratio of 13.8:1. The bore and stroke measures 77 x 53.6 mm. From a practical standpoint, the 2023 YZ250FX tips the scales at 111.1 kg, carries an 8.33-litre fuel tank, offers a seat height of 955 mm and spans a 1481 mm wheelbase. That's roughly 58.5 kg lighter than the average enduro / off-road motorcycle in our database. Scroll down for the complete 2023 Yamaha YZ250FX spec sheet covering every technical detail from suspension travel to tyre sizes.

2023 Yamaha YZ250FX compared with other bikes in the Enduro / Off-Road category

Here is how the 2023 Yamaha YZ250FX stacks up against other bikes in the Enduro / Off-Road category in our database. Each model counts once, using the model year closest to this one, and the comparison covers up to 1146 models.

Wet weight of 111.1 kg is lighter than that of 662 of the other 773 bikes in the Enduro / Off-Road category.
Only 161 of the other 1145 bikes in the Enduro / Off-Road category have a taller seat height than the 955 mm of the YZ250FX.
Narrowing the field to the 271 models within five model years of it, the wet weight of 111.1 kg is lighter than that of 232 of the other 270.

Versus the 2022 model

The figures we track are unchanged from the 2022 model: wet weight, displacement and seat height all match.

2023 YZ250FX - Pros & Cons

Strengths

Fuel injection: The fuel injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
Strong front braking: The single disc front brake gives excellent stopping power and responds well to aftermarket braided lines.

Considerations

Tall seat height: The 955 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.
Modest fuel capacity: The 8.33-litre tank means more frequent fuel stops on longer rides, which is worth planning around on touring routes.
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

Fuelling & injector care

Fuelling comes from fuel injection. 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 YZ250FX 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 single 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 YZ250FX runs KYB® spring-type fork with speed sensitive damping; fully adjustable and KYB® single shock; full adjustable 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 Bilateral beam, aluminum - 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.

Low-speed handling

At just 111.1 kg, the YZ250FX is light enough to manhandle easily at a standstill - one of the practical advantages of its class.

YZ250FX - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2023 Yamaha YZ250FX with its 250 cc enduro / off-road, 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. Now 3 years old, this enduro / off-road is as likely to show age-related wear (perished rubber, seized fasteners, degraded seals) as mileage-related wear. A cold start test is invaluable - a well-maintained YZ250FX 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 YZ250FX's 250 cc single cylinder, four-stroke. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. The sump holds 1.50 litres, so budget for that volume of quality motorcycle-specific engine oil. With a 13.8:1 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 YZ250FX'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 YZ250FX. 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.

2023 Yamaha YZ250FX - Frequently Asked Questions

What engine does the 2023 Yamaha YZ250FX have?

The 2023 Yamaha YZ250FX uses a Single cylinder, four-stroke engine with 250 cc of displacement.

How much does the 2023 Yamaha YZ250FX weigh?

The 2023 Yamaha YZ250FX weighs 111.1 kg. This is the manufacturer's wet figure.

What is the fuel tank capacity of the 2023 Yamaha YZ250FX?

The 2023 Yamaha YZ250FX has an 8.33-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 138-166 km between stops.

Is the 2023 Yamaha YZ250FX suitable for shorter riders?

The 2023 Yamaha YZ250FX has a seat height of 955 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 2023 Yamaha YZ250FX have?

The 2023 Yamaha YZ250FX uses single disc with hydraulic at the front and single disc with hydraulic at the rear.

What tyre sizes does the 2023 Yamaha YZ250FX use?

The front tyre size on the 2023 Yamaha YZ250FX is 80/90-21.

How much oil does the 2023 Yamaha YZ250FX take?

The 2023 Yamaha YZ250FX takes 1.50 litres of engine oil at a full oil and filter change. Always verify against the dipstick or sight glass after filling.

Yamaha YZ250FX Spec Evolution

The Yamaha YZ250FX was produced across 9 model years (2015-2023). 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	2015	2016	2017	2018	2019	2020	2021	2022	2023
Wet Weight	112.9 kg / 249.0 lbs	112.9 kg / 249.0 lbs	112.9 kg / 249.0 lbs	112.9 kg / 249.0 lbs	112.9 kg / 249.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs	111.1 kg / 245.0 lbs
Seat Height	965 mm / 38.0 in.	965 mm / 38.0 in.	965 mm / 38.0 in.	965 mm / 38.0 in.	965 mm / 38.0 in.	955 mm / 37.6 in.	955 mm / 37.6 in.	955 mm / 37.6 in.	955 mm / 37.6 in.
Fuel Capacity	7.57 litres / 2.00 gallons	7.57 litres / 2.00 gallons	7.57 litres / 2.00 gallons	7.57 litres / 2.00 gallons	7.57 litres / 2.00 US gallons	8.33 litres / 2.20 US gallons	8.33 litres / 2.20 US gallons	8.33 litres / 2.20 US gallons	8.33 litres / 2.20 US gallons
Oil Capacity (Quarts)	0.10 quarts	0.10 quarts	0.10 quarts	0.10 quarts	1.59 US quarts	1.59 US quarts	1.59 US quarts	1.59 US quarts	1.59 US quarts
Mods from previous model	-	-	-	-	-	From fender to fender, the YZ250FX is all-new. New engine, improved electronics, new frame, revised suspension, a thinner and lower body, and more—this machine is ready to put riders on top of the podium.	-	Stronger mid- to high-range power. High-spec braking components.	Stronger mid- to high-range power. High-spec braking components.
Ground Clearance (mm)	325 mm	325 mm	325 mm	325 mm	325 mm	320 mm	320 mm	320 mm	320 mm
Ground Clearance (in.)	12.8 inches	12.8 inches	12.8 inches	12.8 inches	12.8 inches	12.6 inches	12.6 inches	12.6 inches	12.6 inches
Comments	-	-	New Cylinder Head and Intake System.	-	-	-	Power Tuner app	Power Tuner app.	Power Tuner app. Selectable Fuel Maps.

Key Specifications

Engine

Single cylinder, four-stroke

Power

Not recorded

Torque

Not recorded

Top Speed

Not recorded

Weight

111.1 kg / 245.0 lbs

Fuel Capacity

8.33 litres / 2.20 US gallons

Full 2023 Yamaha YZ250FX Specifications

Comments Power Tuner app. Selectable Fuel Maps.

Colours Team Yamaha Blue

Warranty 30 Day Limited Factory Warranty

Ground Clearance (in.) 12.6 inches

Ground Clearance (mm) 320 mm

Seat Height 955 mm / 37.6 in.

Wheelbase 1481 mm / 58.3 in.

Height 1280 mm / 50.4 in.

Length 2174 mm / 85.6 in.

Width 826 mm / 32.5 in.

Oil Capacity (l) 1.50 litres

Oil Capacity (Quarts) 1.59 US quarts

Fuel Capacity 8.33 litres / 2.20 US gallons

Wet Weight 111.1 kg / 245.0 lbs

Mods from previous model Stronger mid- to high-range power. High-spec braking components.

Displacement (cc) 250.0 cc

Displacement (ci) 15.26 cubic inches

Engine Type Single cylinder, four-stroke

Fuel Control Double Overhead Cams/Twin Cam (DOHC)

Bore x Stroke (in,) 3.0 x 2.1 inches

Bore x Stroke (mm) 77.0 x 53.6 mm

Engine Detail Titanium valves

Fuel System Injection. Mikuni 44mm

Compression Ratio 13.8:1

Starter Electric

Valve System 4

Clutch Multiplate wet clutch

Final Drive Chain (final drive)

Gearbox 6-speed

Primary Drive O-ring chain

Frame Type Bilateral beam, aluminum

Suspension - Front KYB® spring-type fork with speed sensitive damping; fully adjustable

Suspension - Rear KYB® single shock; full adjustable

Rake 27.2°

Trail 117 mm / 4.6 in.

Wheel Travel - Front 310 mm / 12.2 in.

Wheel Travel - Rear 318 mm / 12.5 in.

Brakes - Front Single disc. Hydraulic.

Brakes - Rear Single disc. Hydraulic.

Rims Dunlop® Geomax MX33 tyres

Tyres - Front 80/90-21

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