Key performance

48 ch
Power
🔧
249 cc
Displacement
⚖️
103 kg
Weight
💺
976 mm
Seat height
8.0 L
Fuel capacity
💰
8 299 €
New price
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Technical specifications

Changements 2012 2018
Engine type
Monocylindre, 2 temps Single cylinder, two-stroke
Cooling
liquide Liquid
Compression ratio
10.6 : 1 10.6:1
Bore × stroke
66.4 x 72 mm 66.4 x 72.0 mm (2.6 x 2.8 inches)
Fuel system
Carburettor. Keihin PWK38S
Lubrication
Premix
Ignition
CDI
Starter
Electric
Frame
Semi double berceau en aluminium Semi-double cradle aluminium
Gearbox
boîte à 5 rapports 5-speed
Final drive
Chaîne Chain   (final drive)
Front suspension
Fourche téléhydraulique inversée Ø 48 mm, déb : 300 mm KYB® Speed-Sensitive System inverted fork; fully adjustable
Rear suspension
Mono-amortisseur, déb : 315 mm KYB® single shock; fully adjustable
Front wheel travel
300 mm (11.8 inches)
Rear wheel travel
315 mm (12.4 inches)
Front brakes
Freinage 1 disque Ø 250 mm, étrier 2 pistons Single disc
Rear brakes
Freinage 1 disque Ø 245 mm, étrier simple piston Single disc
Front tyre
80/100-21 80/100-21
Rear tyre
110/90-19 110/90-19
Seat height
997.00 mm 976.00 mm
Wheelbase
1481.00 mm
Ground clearance
367.00 mm
Length
2147.00 mm
Width
827.00 mm
Height
1299.00 mm
New price
7 459 € 8 299 €

Engine

Displacement
249 cc
Power
48.0 ch (35.3 kW)
Engine type
Single cylinder, two-stroke
Cooling
Liquid
Compression ratio
10.6:1
Bore × stroke
66.4 x 72.0 mm (2.6 x 2.8 inches)
Fuel system
Carburettor. Keihin PWK38S
Lubrication
Premix
Ignition
CDI
Starter
Electric

Chassis

Frame
Semi-double cradle aluminium
Gearbox
5-speed
Final drive
Chain   (final drive)
Front suspension
KYB® Speed-Sensitive System inverted fork; fully adjustable
Rear suspension
KYB® single shock; fully adjustable
Front wheel travel
300 mm (11.8 inches)
Rear wheel travel
315 mm (12.4 inches)

Brakes

Front brakes
Single disc
Rear brakes
Single disc
Front tyre
80/100-21
Rear tyre
110/90-19

Dimensions

Seat height
976.00 mm
Wheelbase
1481.00 mm
Ground clearance
367.00 mm
Length
2147.00 mm
Width
827.00 mm
Height
1299.00 mm
Fuel capacity
8.00 L
Weight
103.00 kg
New price
8 299 €

Overview

Imagine the smell of castor oil and the sound of a two-stroke tearing through the atmosphere. That's the essence of pure motocross, and the Yamaha YZ250 is one of its last guardians. Since its launch in 1974, this legend has never truly left the track, and the 2018 version we're examining proves that a good concept never ages. For just over €8,200 new at the time, you were buying more than a motorcycle: a piece of history that is still terribly effective.

Yamaha YZ250

Beneath the plastic with refreshed graphics, the heart still beats with the same characteristic fury of a two-stroke. The question "Is a Yamaha YZ250 a two-stroke?" becomes almost rhetorical given its temperament is the antithesis of a four-stroke. Its 249 cm3 single-cylinder engine, boosted by the famous YPVS system, doesn't deliver conventional power and torque figures, but a wave of explosive and addictive acceleration. All within an aluminum frame that boasts a featherweight curb weight of 103 kg, an absolute weapon for changing trajectory in the blink of an eye. Compared to more modern and complex competitors, the YZ250 plays the card of formidable simplicity.

This philosophy is reflected in its maintenance. The engine, with its disarming mechanical simplicity, disassembles and adjusts without requiring a doctorate in engineering. This is, in fact, what explains its popularity on the used market. What is the price of a used Yamaha YZ250 two-stroke? For a recent and well-maintained machine, you should expect a significant range, as demand is there. Vintage enthusiasts, meanwhile, scrutinize models like the Yamaha YZ250 2006 or the early years, where prices can vary enormously depending on condition, but where the myth remains intact.

Yamaha YZ250

The chassis, for its part, has followed the evolutions of the YZ-F range. The KYB inverted fork and the fully adjustable rear shock offer terrain tracking and jump comfort that are no longer inferior to the best. The braking system, with its 270 mm front disc, has gained bite to control the engine's fury. It's a motorcycle that forgives and encourages you to push your limits, whether you're an enlightened enthusiast seeking raw sensations or a seasoned racer fueled by gasoline and oil.

So, is the Yamaha YZ250 outdated? Its championship record, like in the EMX300, answers no. It's not the most versatile or the easiest for a beginner, its 8-liter tank requiring frequent refueling. But for those seeking direct thrills, pure mechanical connection, and a machine to win races, it remains a benchmark. With the arrival of the 2024 Yamaha YZ250 and especially its 50th Anniversary version, the myth continues to be written, proving that in the chaos of high-tech engines, the sharp cry of a two-stroke always finds its audience.

Indicators & positioning

Weight-to-power ratio
0.46 ch/kg
🔧
Volumetric power
190.0 ch/L
In category Cross / motocross · 125-498cc displacement (473 motorcycles compared)
Power 47 ch Top 37%
11 ch median 43 ch 63 ch
Weight 103 kg Lighter than 81%
84 kg median 108 kg 129 kg
P/W ratio 0.46 ch/kg Top 42%
0.10 median 0.42 0.56 ch/kg

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