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2011 Yamaha YZ250 Overview
Yamaha YZ250 is a cross / motocross motorcycle, displacing 249 cc. Power comes from a Single cylinder, two-stroke engine running DOHC valve actuation, a compression ratio of 8.9:1. Bore and stroke come in at 66.4 x 72 mm. On the road, the 2011 YZ250 tips the scales at 103 kg, carries a 7.95-litre fuel tank, offers a seat height of 993 mm and spans a 1,481 mm wheelbase. The full 2011 Yamaha YZ250 spec sheet below covers every technical detail, from suspension travel to tyre sizes.
2011 YZ250 - Pros & Cons
Strengths
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Factory engineering: Yamaha built the YZ250 around a straightforward, purposeful specification rather than chasing any single standout feature.
Considerations
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🔧
Carburetor fuelling: Expect to spend more time keeping the carbs in tune, especially after long storage periods or a change in altitude.
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📏
Tall seat height: At 993 mm, shorter riders will likely be on tiptoes at a standstill - worth sitting on one before you buy.
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Modest fuel capacity: Range between stops is limited by the 7.95-litre tank - plan fuel stops accordingly on longer routes.
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Chain final drive upkeep: Budget time for routine chain maintenance - it's cheap to replace but needs consistent attention to avoid premature sprocket wear.
Wear Points & Servicing Notes
Carburetor maintenance
Carburetors on the YZ250 need periodic attention - pilot jets and float needles are the first parts to gum up after the bike sits, and the first thing to check if idle or throttle response degrades.
Valve clearance checks
With DOHC valve gear, the YZ250 needs periodic clearance checks; caught early they're a cheap adjustment, left unchecked they accelerate valve seat wear.
Brake disc and pad wear
Braking up front comes from Single disc - solid stopping power, with disc and pad wear best checked on the same schedule as tyre changes.
Suspension condition on used examples
The YZ250's suspension runs Speed-Sensitive System inverted fork at the front. The rear uses Fully adjustable single shock, 12.4-in travel. Fork-seal condition and rear linkage play are the two things worth checking before buying used.
Final drive maintenance
The YZ250 uses chain final drive, which is cheap to replace but needs regular cleaning, lubrication and tension checks to get a full service life out of the sprockets.
Frame & chassis check
Built around a Aluminium, the YZ250's chassis is straightforward to inspect: look for corrosion, cracks or repair welds around stress points like the head-stock and swingarm mounts.
Low-speed handling
103 kg keeps the YZ250 easy to move around in tight spaces, car parks and on the stand alike.
YZ250 - Buying & Maintenance Guide
What to check before buying
Before handing over money for a used 2011 Yamaha YZ250, cover the fundamentals: service book and oil change history, chain and sprocket wear, and any sign of oil weeping around the casings. Cold-starting it yourself tells you a lot - a healthy YZ250 should catch quickly and settle into a smooth idle.
Oil and filter changes
Nothing protects a YZ250's engine like disciplined oil changes - stay on the manufacturer's schedule (roughly every 6,000 km or annually). Match the viscosity grade to what the owner's manual specifies, not what's cheapest.
Carburetor upkeep
Deposits in the carbs are the usual culprit behind poor running on a stored YZ250 - strip and clean the float bowls before the first start. Pilot jets clog first and get overlooked most, so make a point of checking them.
Valve clearance service
Valve clearances are easy to overlook on a used YZ250 since a bike out of spec doesn't always feel obviously wrong - but the wear it causes is real. Ask the seller for documentation before assuming it's been done.
2011 Yamaha YZ250 - Frequently Asked Questions
What engine does the 2011 Yamaha YZ250 have?
The 2011 Yamaha YZ250 uses a Single cylinder, two-stroke engine with 249 cc of displacement.
How much does the 2011 Yamaha YZ250 weigh?
The 2011 Yamaha YZ250 weighs 103 kg. This is the manufacturer's wet figure.
What is the fuel tank capacity of the 2011 Yamaha YZ250?
The 2011 Yamaha YZ250 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 2011 Yamaha YZ250 suitable for shorter riders?
The 2011 Yamaha YZ250 has a seat height of 993 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 2011 Yamaha YZ250 have?
The 2011 Yamaha YZ250 uses Single disc at the front and Single disc at the rear.
What tyre sizes does the 2011 Yamaha YZ250 use?
The 2011 Yamaha YZ250 runs 21/7-10 front and 110/90-M19 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What fuel system does the 2011 Yamaha YZ250 use?
The 2011 Yamaha YZ250 uses Carburettor. Keihin PWK38S, providing precise fuelling across the rev range and reliable cold-start behaviour.
Yamaha YZ250 Spec Evolution
The Yamaha YZ250 was produced across 21 model years (2002-2023). 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 |
2002 |
2004 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |
2016 |
2017 |
2018 |
2019 |
2020 |
2021 |
2022 |
2023 |
| Wet Weight |
- |
- |
- |
- |
- |
- |
103.9 kg / 229.0 lbs |
103.9 kg / 229.0 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.1 lbs |
103.0 kg / 227.1 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
| Dry Weight |
97.5 kg / 215.0 lbs |
97 kg / 213.8 lbs |
- |
96 kg / 211.6 lbs |
96 kg / 211.6 lbs |
96.2 kg / 212.0 lbs |
- |
- |
- |
- |
210.5 kg / 464.1 lbs |
59 kg / 130.1 lbs |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| Engine Type |
Single cylinder |
Single cylinder |
Single cylinder |
V2 |
Single cylinder |
Single cylinder |
Single cylinder |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
Single cylinder, four-stroke |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
Single cylinder, two-stroke |
| Seat Height |
- |
990 mm / 39.0 in. |
991 mm / 39.0 in. |
997 mm / 39.3 in. |
993 mm / 39.1 in. |
993 mm / 39.1 in. |
993 mm / 39.1 in. |
993 mm / 39.1 in. |
993 mm / 39.1 in. |
993 mm / 39.1 in. |
993 mm / 39.1 in. |
993 mm / 39.1 in. |
993 mm / 39.1 in. |
976 mm / 38.4 in. |
976 mm / 38.4 in. |
976 mm / 38.4 in. |
976 mm / 38.4 in. |
976 mm / 38.4 in. |
970 mm / 38.2 in. |
970 mm / 38.2 in. |
975 mm / 38.4 in. |
| Fuel Capacity |
- |
- |
7.94 litres / 2.10 gallons |
8.00 litres / 2.11 gallons |
7.94 litres / 2.10 gallons |
7.94 litres / 2.10 gallons |
7.94 litres / 2.10 gallons |
7.94 litres / 2.10 gallons |
7.95 litres / 2.10 gallons |
7.95 litres / 2.10 gallons |
7.95 litres / 2.10 gallons |
7.95 litres / 2.10 gallons |
7.95 litres / 2.10 gallons |
8.00 litres / 2.11 gallons |
8.00 litres / 2.11 gallons |
8.00 litres / 2.11 gallons |
8.00 litres / 2.11 US gallons |
8.00 litres / 2.11 US gallons |
8.00 litres / 2.11 US gallons |
8.00 litres / 2.11 US gallons |
8.00 litres / 2.11 US gallons |
| Oil Capacity (Quarts) |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.05 quarts |
0.05 quarts |
0.05 quarts |
0.85 US quarts |
0.85 US quarts |
0.85 US quarts |
0.85 US quarts |
0.85 US quarts |
| Ground Clearance (mm) |
391 mm |
391 mm |
396 mm |
385 mm |
381 mm |
381 mm |
381 mm |
381 mm |
381 mm |
381 mm |
381 mm |
381 mm |
381 mm |
367 mm |
367 mm |
367 mm |
361 mm |
361 mm |
361 mm |
361 mm |
361 mm |
| Ground Clearance (in.) |
15.4 inches |
15.4 inches |
15.6 inches |
15.2 inches |
15.0 inches |
15.0 inches |
15.0 inches |
15.0 inches |
15.0 inches |
15.0 inches |
15.0 inches |
15.0 inches |
15.0 inches |
14.4 inches |
14.4 inches |
14.4 inches |
14.2 inches |
14.2 inches |
14.2 inches |
14.2 inches |
14.2 inches |
Key Specifications
Engine
Single cylinder, two-stroke
Power
Not published by manufacturer
Torque
Not published by manufacturer
Top Speed
Not published by manufacturer
Weight
103.0 kg / 227.0 lbs
Fuel Capacity
7.95 litres / 2.10 gallons
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Full 2011 Yamaha YZ250 Specifications
Colours
Team Yamaha Blue/White
Warranty
30 Day (Limited Factory Warranty)
Ground Clearance (in.)
15.0 inches
Ground Clearance (mm)
381 mm
Seat Height
993 mm / 39.1 in.
Wheelbase
1,481 mm / 58.3 in.
Height
1,306 mm / 51.4 in.
Length
2,177 mm / 85.7 in.
Width
828 mm / 32.6 in.
Fuel Capacity
7.95 litres / 2.10 gallons
Wet Weight
103.0 kg / 227.0 lbs
Bore x Stroke (in,)
2.6 x 2.8 inches
Bore x Stroke (mm)
66.4 x 72.0 mm
Displacement (cc)
249.00 cc
Displacement (ci)
15.19 cubic inches
Engine Type
Single cylinder, two-stroke
Fuel Control
DOHC
Fuel System
Carburettor. Keihin PWK38S
Compression Ratio
8.9:1
Engine Lubrication
Dry sump
Ignition
CDI
Starter
Electric
Final Drive
Chain
Gearbox
5-speed
Primary Drive
2WD; Sealed O-Ring Chain, Eccentric Adjustment
Frame Type
Aluminium
Suspension - Front
Speed-Sensitive System inverted fork
Suspension - Rear
Fully adjustable single shock, 12.4-in travel
Wheel Travel - Front
300 mm / 11.8 in.
Lighting system
Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light
Brakes - Front Diameter (in.)
9.8 inches
Brakes - Front Diameter (mm)
250 mm
Brakes - Rear Diameter (in.)
9.6 inches
Brakes - Rear Diameter (mm)
245 mm
Brakes - Front
Single disc
Brakes - Rear
Single disc
Tyres - Front
21/7-10
Tyres - Rear
110/90-M19
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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