Key performance

48 ch
Power
🔧
249 cc
Displacement
⚖️
103 kg
Weight
💺
997 mm
Seat height
8.0 L
Fuel capacity
💰
7 459 €
New price
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Technical specifications

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

Engine

Displacement
249 cc
Power
48.0 ch (35.3 kW)
Engine type
Monocylindre, 2 temps
Cooling
liquide
Compression ratio
10.6 : 1
Bore × stroke
66.4 x 72 mm

Chassis

Frame
Semi double berceau en aluminium
Gearbox
boîte à 5 rapports
Final drive
Chaîne
Front suspension
Fourche téléhydraulique inversée Ø 48 mm, déb : 300 mm
Rear suspension
Mono-amortisseur, déb : 315 mm

Brakes

Front brakes
Freinage 1 disque Ø 250 mm, étrier 2 pistons
Rear brakes
Freinage 1 disque Ø 245 mm, étrier simple piston
Front tyre
80/100-21
Rear tyre
110/90-19

Dimensions

Seat height
997.00 mm
Fuel capacity
8.00 L
Weight
103.00 kg
New price
7 459 €

Overview

It’s impossible to talk about motocross without mentioning the legend, the one that brought Yamaha its first world championship in 1973. Nearly half a century later, the recipe endures with rare consistency. Consider this 2012 Yamaha YZ250. Beneath its flanks beats the heart of a pure two-stroke, a 249 cm3 single-cylinder engine that delivers 48 horsepower with the characteristic brutality of its mechanics. A Yamaha YZ250 motocross bike is first and foremost this signature sound and nervous propulsion that tolerates no hesitation.

Yamaha YZ250

The secret to its agility? A featherweight dry weight of 103 kilograms, a crucial figure when considering the weight of the Yamaha YZ250. This figure is explained by a semi-double cradle aluminum frame, an architecture that has proven itself by combining rigidity and a certain elasticity. The Kayaba suspension, an inverted 48 mm fork and a single shock absorber, offer more than 300 mm of travel to absorb impacts. Paired with petal disc brakes, the whole forms a chassis of formidable efficiency, designed for the track.

But be warned, this is not a machine for beginners. The two-stroke engine, equipped with the famous YPVS system, delivers its power explosively. The question "what is the speed of a Yamaha YZ250?" is almost incongruous; here, we talk about lightning acceleration and immediate response, not top speed on the highway. With only 8 liters in the tank and a seat height of 997 mm, it demands total commitment. It’s the perfect tool for the experienced track rider looking for pure reactivity, far from the compromises of four-strokes.

Yamaha YZ250

Today, the 2012 model lives in the shadow of recent versions, such as the highly anticipated 2024 Yamaha YZ250, or even its 50th Anniversary edition. Its new price was 7459 euros, an amount that has of course evolved on the used market. To know what the price of a used Yamaha YZ250 two-stroke is, you have to dive into the listings, knowing that the price varies enormously depending on condition and year. Models from the 90s, such as those from 1992 or 1993, can be found for around $2700 for a correct example, while collector's items reach peaks.

The Yamaha YZ250 remains therefore a monument, a two-stroke that refuses to die. Faced with modern competition, often easier to tame, it defends a raw and demanding philosophy. It is not versatile, it is not economical, but for those seeking the pure sensation of cross and the characteristic crackle of a premix engine, it is unrivaled. It’s a machine for enthusiasts, for whom riding is a total sporting act, without a net or assistance.

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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