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2020 Yamaha YZ250F Overview
The 2020 Yamaha YZ250F is a cross / motocross 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 2020 YZ250F tips the scales at 106.1 kg, carries a 6.06-litre fuel tank, offers a seat height of 965 mm and spans a 1476 mm wheelbase. Scroll down for the complete 2020 Yamaha YZ250F spec sheet covering every technical detail from suspension travel to tyre sizes.
2020 YZ250F - Pros & Cons
Strengths
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🔧
Fuel injection: The fuel injection injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
Considerations
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📏
Tall seat height: The 965 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.
Owner Experiences & Common Issues
Throttle response and fuelling
The fuel injection on the 2020 Yamaha YZ250F is generally well-regarded. Some owners note a slight hesitation at small throttle openings when cold, which clears once the engine reaches operating temperature. A quick visual check of the injector connectors during routine servicing is good practice on higher-mileage examples.
Valve clearance checks
Double Overhead Cams/Twin Cam (DOHC) engines should have valve clearances checked at the manufacturer's specified interval. Owners report that clearances can tighten over time on higher-mileage bikes, leading to slight ticking from the top end. Catching it early keeps the job simple and avoids more costly remediation.
YZ250F - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2020 Yamaha YZ250F, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained YZ250F 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 on any YZ250F. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. The sump holds 0.90 litres, so budget for that volume of quality motorcycle-specific engine oil. Always use the correct viscosity grade as specified in the owner's manual.
Fuel system care
The YZ250F'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 YZ250F. This is a job many owners skip because the bike does not immediately feel wrong - but tight clearances accelerate valve seat wear. Ask for proof it has been done.
2020 Yamaha YZ250F - Frequently Asked Questions
What engine does the 2020 Yamaha YZ250F have?
The 2020 Yamaha YZ250F uses a Single cylinder, four-stroke engine with 250 cc of displacement.
How much does the 2020 Yamaha YZ250F weigh?
The 2020 Yamaha YZ250F weighs 106.1 kg. This is the manufacturer's wet figure.
What is the fuel tank capacity of the 2020 Yamaha YZ250F?
The 2020 Yamaha YZ250F has a 6.06-litre fuel tank.
Is the 2020 Yamaha YZ250F suitable for shorter riders?
The 2020 Yamaha YZ250F has a seat height of 965 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 2020 Yamaha YZ250F have?
The 2020 Yamaha YZ250F uses Single disc. Hydraulic. at the front and Single disc. Hydraulic. at the rear.
What tyre sizes does the 2020 Yamaha YZ250F use?
The front tyre size on the 2020 Yamaha YZ250F is 80/100-21.
How much oil does the 2020 Yamaha YZ250F take?
The 2020 Yamaha YZ250F takes 0.90 litres of engine oil at a full oil and filter change. Always verify against the dipstick or sight glass after filling.
Yamaha YZ250F Spec Evolution
The Yamaha YZ250F 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 |
- |
- |
- |
- |
- |
- |
102.5 kg / 226.0 lbs |
102.0 kg / 224.8 lbs |
102.0 kg / 224.8 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
103.0 kg / 227.0 lbs |
104.8 kg / 231.0 lbs |
104.8 kg / 231.0 lbs |
105.0 kg / 231.5 lbs |
104.8 kg / 231.0 lbs |
106.1 kg / 234.0 lbs |
106.1 kg / 234.0 lbs |
106.1 kg / 234.0 lbs |
106.1 kg / 234.0 lbs |
106.1 kg / 234.0 lbs |
| Dry Weight |
96.5 kg / 212.7 lbs |
97 kg / 213.8 lbs |
- |
93.5 kg / 206.1 lbs |
92.7 kg / 204.4 lbs |
92.5 kg / 204.0 lbs |
- |
- |
- |
- |
210.5 kg / 464.1 lbs |
59 kg / 130.1 lbs |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| Engine Detail |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Titanium valves |
- |
Titanium-valves |
Titanium-valves |
Titanium-valves |
Titanium-valves |
Titanium-valves |
Titanium-valves |
Titanium-valves |
Titanium-valves |
- |
- |
| Engine Type |
Single cylinder |
Single cylinder |
Single cylinder |
V2 |
Single cylinder |
Single cylinder |
Single cylinder |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
Single cylinder, four-stroke |
| Seat Height |
998 mm / 39.3 in. |
995 mm / 39.2 in. |
991 mm / 39.0 in. |
994 mm / 39.1 in. |
983 mm / 38.7 in. |
986 mm / 38.8 in. |
986 mm / 38.8 in. |
988 mm / 38.9 in. |
988 mm / 38.9 in. |
991 mm / 39.0 in. |
991 mm / 39.0 in. |
991 mm / 39.0 in. |
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. |
965 mm / 38.0 in. |
970 mm / 38.2 in. |
970 mm / 38.2 in. |
970 mm / 38.2 in. |
| Fuel Capacity |
- |
- |
6.81 litres / 1.80 gallons |
7.00 litres / 1.85 gallons |
6.81 litres / 1.80 gallons |
6.81 litres / 1.80 gallons |
6.81 litres / 1.80 gallons |
6.43 litres / 1.70 gallons |
6.43 litres / 1.70 gallons |
6.06 litres / 1.60 gallons |
6.06 litres / 1.60 gallons |
6.06 litres / 1.60 gallons |
6.06 litres / 1.60 gallons |
6.06 litres / 1.60 gallons |
7.50 litres / 1.98 gallons |
7.50 litres / 1.98 gallons |
6.06 litres / 1.60 US gallons |
6.06 litres / 1.60 US gallons |
6.06 litres / 1.60 US gallons |
6.06 litres / 1.60 US gallons |
6.06 litres / 1.60 US gallons |
| Oil Capacity (l) |
- |
- |
- |
- |
- |
- |
- |
- |
1.20 litres |
- |
- |
- |
- |
- |
0.90 litres |
0.90 litres |
0.90 litres |
0.90 litres |
0.90 litres |
0.90 litres |
0.90 litres |
| Oil Capacity (Quarts) |
- |
- |
- |
- |
- |
- |
- |
- |
0.08 quarts |
- |
- |
- |
- |
- |
0.06 quarts |
0.06 quarts |
0.95 US quarts |
0.95 US quarts |
0.95 US quarts |
0.95 US quarts |
0.95 US quarts |
Key Specifications
Engine
Single cylinder, four-stroke
Weight
106.1 kg / 234.0 lbs
Fuel Capacity
6.06 litres / 1.60 US gallons
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Full 2020 Yamaha YZ250F Specifications
Colours
Team Yamaha Blue, Gray
Warranty
30 Day Limited Factory Warranty
Ground Clearance (in.)
13.2 inches
Ground Clearance (mm)
335 mm
Seat Height
965 mm / 38.0 in.
Wheelbase
1476 mm / 58.1 in.
Height
1285 mm / 50.6 in.
Length
2174 mm / 85.6 in.
Width
826 mm / 32.5 in.
Oil Capacity (l)
0.90 litres
Oil Capacity (Quarts)
0.95 US quarts
Fuel Capacity
6.06 litres / 1.60 US gallons
Wet Weight
106.1 kg / 234.0 lbs
Bore x Stroke (in,)
3.0 x 2.1 inches
Bore x Stroke (mm)
77.0 x 53.6 mm
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)
Engine Detail
Titanium-valves
Fuel System
Injection. Mikuni fuel injection, 44mm
Compression Ratio
13.8:1
Engine Lubrication
Wet sump
Ignition
TCI: Transistor Controlled Ignition
Starter
Kick
Valve System
4
Clutch
Multiplate wet clutch
Final Drive
Chain (final drive)
Gearbox
5-speed
Frame Type
Bilateral beam aluminum frame
Suspension - Front
KYB speed-Sensitive System, inverted fork: fully adjustable
Suspension - Rear
KYB fully adjustable single shock
Rake
28.0°
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
Bridgestone® M403A tyres
Tyres - Front
80/100-21
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