2019 Yamaha YZ250X Specifications

Name: 2019 Yamaha YZ250X
Brand: Yamaha

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

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2019 Yamaha YZ250X Overview

The 2019 Yamaha YZ250X is an enduro / off-road motorcycle built around 249 cc of displacement. Under the tank sits a Single cylinder, two-stroke engine, a compression ratio of 9.4:1. The bore and stroke measures 66.4 x 72 mm. From a practical standpoint, the 2019 YZ250X tips the scales at 103.9 kg, carries a 7.95-litre fuel tank, offers a seat height of 970 mm and spans a 1486 mm wheelbase. That's roughly 65.6 kg lighter than the average enduro / off-road motorcycle in our database. Scroll down for the complete 2019 Yamaha YZ250X spec sheet covering every technical detail from suspension travel to tyre sizes.

2019 Yamaha YZ250X compared with other bikes in the Enduro / Off-Road category

Here is how the 2019 Yamaha YZ250X 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 1434 models.

Seat height of 970 mm is taller than that of 1080 of the other 1145 bikes in the Enduro / Off-Road category.
Only 62 of the other 773 bikes in the Enduro / Off-Road category have a lighter wet weight than the 103.9 kg of the YZ250X.
With 249 cc, the YZ250X has the joint 384th smallest engine displacement of 1434 bikes in the Enduro / Off-Road category, 49% below the category average of 486 cc.
Narrowing the field to the 501 models within five model years of it, the seat height of 970 mm is taller than that of 477 of the other 500.

Versus the 2018 model

Compared with the 2018 model, wet weight dropped from 229 kg to 103.9 kg (-125.1 kg). Seat height is unchanged.

2019 YZ250X - 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 970 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.
Modest fuel capacity: The 7.95-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.

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 YZ250X runs KYB® Speed-Sensitive System inverted fork; fully adjustable and KYB® single shock; fully 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.

Low-speed handling

At just 103.9 kg, the YZ250X is light enough to manhandle easily at a standstill - one of the practical advantages of its class.

YZ250X - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2019 Yamaha YZ250X with its 249 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 7 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 YZ250X 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 YZ250X's 249 cc single cylinder, two-stroke. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. With a 9.4:1 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 YZ250X'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.

2019 Yamaha YZ250X - Frequently Asked Questions

What engine does the 2019 Yamaha YZ250X have?

The 2019 Yamaha YZ250X uses a Single cylinder, two-stroke engine with 249 cc of displacement.

How much does the 2019 Yamaha YZ250X weigh?

The 2019 Yamaha YZ250X weighs 103.9 kg. This is the manufacturer's wet figure.

What is the fuel tank capacity of the 2019 Yamaha YZ250X?

The 2019 Yamaha YZ250X has a 7.95-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 132-159 km between stops.

Is the 2019 Yamaha YZ250X suitable for shorter riders?

The 2019 Yamaha YZ250X has a seat height of 970 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 2019 Yamaha YZ250X have?

The 2019 Yamaha YZ250X uses single disc with hydraulic at the front and single disc with hydraulic at the rear.

What tyre sizes does the 2019 Yamaha YZ250X use?

The front tyre size on the 2019 Yamaha YZ250X is 90/90-21.

What fuel system does the 2019 Yamaha YZ250X use?

The 2019 Yamaha YZ250X uses Injection. Keihin® PWK38S, providing precise fuelling across the rev range and reliable cold-start behaviour.

Yamaha YZ250X Spec Evolution

The Yamaha YZ250X was produced across 8 model years (2016-2023). 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	2016	2017	2018	2019	2020	2021	2022	2023
Wet Weight	103.9 kg / 229.0 lbs	103.9 kg / 229.0 lbs	229.0 kg / 504.9 lbs	103.9 kg / 229.0 lbs	103.9 kg / 229.0 lbs	103.9 kg / 229.0 lbs	103.9 kg / 229.0 lbs	103.9 kg / 229.0 lbs
Seat Height	970 mm / 38.2 in.	970 mm / 38.2 in.	970 mm / 38.2 in.	970 mm / 38.2 in.	970 mm / 38.2 in.	970 mm / 38.2 in.	970 mm / 38.2 in.	975 mm / 38.4 in.
Fuel Capacity	7.57 litres / 2.00 gallons	7.57 litres / 2.00 gallons	7.57 litres / 2.00 gallons	7.95 litres / 2.10 US gallons	7.95 litres / 2.10 US gallons	7.95 litres / 2.10 US gallons	7.95 litres / 2.10 US gallons	6.81 litres / 1.80 US gallons
Ground Clearance (mm)	325 mm	325 mm	325 mm	361 mm	361 mm	361 mm	361 mm	361 mm
Ground Clearance (in.)	12.8 inches	12.8 inches	12.8 inches	14.2 inches	14.2 inches	14.2 inches	14.2 inches	14.2 inches
Bore x Stroke (mm)	66.4 x 72.0 mm	66.4 x 72.0 mm	66.4 x 72.0 mm	66.4 x 72.0 mm	66.0 x 72.0 mm	66.4 x 72.0 mm	66.4 x 72.0 mm	66.4 x 72.0 mm
Brakes - Front Diameter (mm)	250 mm	270 mm	270 mm	-	-	-	-	-
Brakes - Front Diameter (in.)	9.8 inches	10.6 inches	10.6 inches	-	-	-	-	-

Key Specifications

Engine

Single cylinder, two-stroke

Power

Not recorded

Torque

Not recorded

Top Speed

Not recorded

Weight

103.9 kg / 229.0 lbs

Fuel Capacity

7.95 litres / 2.10 US gallons

Full 2019 Yamaha YZ250X Specifications

Colours Team Yamaha Blue

Warranty 30 Day Limited Factory Warranty

Ground Clearance (in.) 14.2 inches

Ground Clearance (mm) 361 mm

Seat Height 970 mm / 38.2 in.

Wheelbase 1486 mm / 58.5 in.

Height 1290 mm / 50.8 in.

Length 2184 mm / 86.0 in.

Width 826 mm / 32.5 in.

Fuel Capacity 7.95 litres / 2.10 US gallons

Wet Weight 103.9 kg / 229.0 lbs

Bore x Stroke (in,) 2.6 x 2.8 inches

Bore x Stroke (mm) 66.4 x 72.0 mm

Displacement (cc) 249.0 cc

Displacement (ci) 15.19 cubic inches

Engine Type Single cylinder, two-stroke

Engine Detail Reed-valve inducted

Fuel System Injection. Keihin® PWK38S

Compression Ratio 9.4:1

Ignition CDI

Starter Electric

Clutch Wet multi-disc

Final Drive Chain (final drive)

Gearbox 5-speed

Primary Drive O-ring chain

Suspension - Front KYB® Speed-Sensitive System inverted fork; fully adjustable

Suspension - Rear KYB® single shock; fully adjustable

Rake 27.7°

Trail 122 mm / 4.8 in.

Wheel Travel - Front 300 mm / 11.8 in.

Wheel Travel - Rear 315 mm / 12.4 in.

Brakes - Front Single disc. Hydraulic.

Brakes - Rear Single disc. Hydraulic.

Rims Dunlop® AT81F tyres

Tyres - Front 90/90-21

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