Yamaha YZ250F

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2001 Yamaha YZ250F right profile.jpg
Yamaha YZ250F
Manufacturer
Production 2001 - 2019
Class Motocross
Engine
250
Spark Plug '07-08
NGK CR8E '01-06
Front Tire 80/100-21 '01-06 , '07-08
Rear Tire 100/90-19 '01-06 , '07-08
Weight
Oil Filter K&N KN-140
Related Yamaha YZ250
Yamaha YZ450F
Yamaha YZ426F
Yamaha YZ400F
Manuals Service Manual



The Yamaha YZ250F was first released as a 2001 model revolutionizing motocross. With Yamaha's patented 5 Titanium valve design and innovative four-stroke technology made the YZ250F the dominant force for years to come. The bike featured a steel frame and an aluminum subframe. The 2006 model is redesigned with an aluminum frame. The YZ250F can thank its four-stroke success to the YZ400F. The YZ250F also catapulted Chad Reed's motocross career into overdrive winning a 125cc championship for the Yamaha of Troy race team. The similarly named Yamaha YZ250 is a two-stroke motorcross bike made to compete with the 450 four-strokes.

2001[edit]

2001 Yamaha YZ250F right profile
2001 Yamaha YZ250F front
2001 Yamaha YZ250F caged background


2003 Yamaha YZ250F[edit]

2003 Yamaha YZ250F

The 2002 Yamaha YZ250F is definitely not a toy. Of course it can be used for excellent off-road fun and weekend explorations, but it's on the dirt track where it will shine and offer the true measure of its brawn. With its 5-valve cylinder head engine and retooled suspension, the 2002 Yamaha YZ250F offers enhanced handling precision with even lower flex from the all-new frame this model year received.

And even the bodywork is new, adding more to the pleasure of riding this machine. The brakes are also updated, with new discs and more progressive stopping power.



2004 Yamaha YZ250F[edit]

2004 Yamaha YZ250F

While the 2-stroke quarter-liter off-road Yamaha machines have set new standards back in the day, here's a new treat for those who want to take their shot at glory. The 2003 YZ250F is blast to ride given its 13,500 rpm redline and revised engine internals. Ready to win races straight from the box, the 2003 YZ250F is equipped with an all-new titanium header for better gas flow and less weight.

The new YZ250F comes with 48mm USD forks and a new triple clamp, new, lighter calipers with aluminum pistons, and titanium footpegs.


2004[edit]

2004 Yamaha YZ250F in Blue
2004 Yamaha YZ250F in Blue
2004 Yamaha YZ250F in Blue
2004 Yamaha YZ250F in Blue
2004 Yamaha YZ250F in Blue
2004 Yamaha YZ250F in Blue
2004 Yamaha YZ250F in Blue
2004 Yamaha YZ250F in Blue


2005[edit]

2005 Yamaha YZ250F in Blue
2005 Yamaha YZ250F in Blue



2006 Yamaha YZ250F[edit]

If it's got an F suffix, it's a 4-stroke, so we're looking at a smooth engine powering the 2005 YZ250F. However, this quarter-liter bike is nothing like a tame beast: it packs more power than meets the eye, and thanks to its 5-speed transmission, there's also torque on tap for fast starts on the dirt track and confident uphill strides on forest trails.

2006 brings a lot of engine revisions, and suspension also received massive tweaking for a more balanced performance and predictable steering. The rear caliper is new, and the bike got premium Excel rims, too, complemented by a new flat seat and repackable exhaust.



2007 Yamaha YZ250F[edit]

The 2007 MY Yamaha YZ250F introduces several revisions aimed at adding even more performance to this light, nimble bike. The frame got some upgrades and tweaks to increase torsional rigidity and make handling more precise, while steering became easier thanks to the revised seat height. Intake redesign matched the engine revisions for better low and mid-range performance, and updated exhaust and ignition systems have also been devised.

The bike is delivered with pro-c;ass pro Taper handlebars, wide titanium pegs, Excel rims and multiple other features "borrowed" from or inspired by the works trim.


2008 Yamaha YZ250F[edit]

2008 Yamaha YZ250F 2008 Yamaha YZ250F 2008 Yamaha YZ250F 2008 Yamaha YZ250F 2008 Yamaha YZ250F

The 2008 MY YZ250F gets a lot of updates and takes performance one step ahead in the quarter-liter class. Yamaha's 4-stroke 250cc dirt racer gets multiple engine revisions for the new model year, and they include a new piston, new mapping, a lighter fork and much more.

The upgrades were focused on improved performance and lighter weight, with even the carburetor receiving some tweaks, as well. Adjustable levers, new suspension and frame elements, a redesigned brake pedal, and new, wider pegs are also part of the upgrades list.


2009 Yamaha YZ250F[edit]

2009 Yamaha YZ250F 2009 Yamaha YZ250F 2009 Yamaha YZ250F 2009 Yamaha YZ250F 2009 Yamaha YZ250F

The 2009 MY YZ250F is the 4-stroke sibling of the acclaimed YZ250, and is a quarter-liter competition-grade bike which packs much more fun than meets the eye. New for this model year are the revised 13.5:1 compression and a new clutch design meant to provide lighter pulling and impeccable performance. Race-derive engine components and suspensions, premium controls and exhaust and many more similar details make the YZ250F a bike that's ready to start winning races right from the box.


2010 Yamaha YZ250F[edit]

The F in 2010 MY YZ250F's name indicates we're dealing with the 4-stroke version of the quarter-liter engine. Basically, the upgraded frame and suspensions of the YZ250 have been mated to a new engine. The looks of the YZ250F have been upgraded, with more aggressive graphics, while the engine also received a massive update, with many new components and revised ones, all contributing to more power at the rider's fingertips.

The 5-speed transmission was also upgraded, together with the ignition, radiators, headers, frame and all. The 2010 MY YZ250F is all-new, just like the performance is higher.


2011 Yamaha YZ250F[edit]

The 2011 MY YZ250F introduces premium 4-stroke competition-grade machinery to the skilled rider. The engine is a strong puller, but is much smoother than its 2-stroke counterpart, and thanks to the careful weight management, it doesn't make the YZ250F a heavy load. The bike is really easy to flick without massive effort from the rider, retaining exceptional ground tracking capabilities worth of a race bike.

Adjustable suspensions, optimized mass and top-drawer titanium valves for the engine add to the overall performance specs of this race-winning quarter-liter beast.

2012 Yamaha YZ250F[edit]

2012 Yamaha YZ250F 2012 Yamaha YZ250F 2012 Yamaha YZ250F 2012 Yamaha YZ250F 2012 Yamaha YZ250F

The 2012 MY Yamaha YZ250F sports an outstanding throttle response, thanks to new crankshaft webs, new vibration-reducing counterbalancer, new connecting rod, and low-friction piston rings, as well as a new piston, piston pin, and clip assembly that’s over 8% lighter overall than before.

To take full advantage of these advancements, there’s also new CDI mapping and a bigger 39mm carb with freer breathing air cleaner cage. Added to the new frame and suspension refinements, this latest engine gives YZ250F amazing balance – a powerful, light-handling machine with performance that’s accessible to all levels of riders.

The YZ250F has specially-tuned forks and a sturdy yet lightweight frame, created with agility in mind, offering very good fast cornering. Foot pegs and handlebars are adjustable to fit multiple riders and offer them the movement freedom and the most comfortable stance.



2013 Yamaha YZ250F[edit]

2013 Yamaha YZ250F 2013 Yamaha YZ250F 2013 Yamaha YZ250F 2013 Yamaha YZ250F 2013 Yamaha YZ250F

The 2012 Yamaha YZ250F is the right tool for those looking for a smaller dirt bike packed with all the character and technological goodies of the big machines.

The YZ250F was the first 4-stroke 250cc bike on the market and the firs to win 1st to win an international race, the 1st to win an AMA Supercross, and the 1st to take an AMA U.S. Supercross Championship title, as well as the rest to win an AMA National race.

It has simply been built to win, as it sports specially-tuned forks and a sturdy yet lightweight frame, created with agility in mind, offering very good fast cornering. Foot pegs and handlebars are adjustable to fit multiple riders and offer them the movement freedom and the most comfortable stance.


2014 Yamaha YZ250F[edit]

2014 Yamaha YZ250F 2014 Yamaha YZ250F 2014 Yamaha YZ250F 2014 Yamaha YZ250F 2014 Yamaha YZ250F

Just like its bigger brother YZ450F, the 2013 Yamaha YZ250F brings a heap of all-net things for the new year model. Starting with the new EFI engine mounted in an all-new aluminum Bilateral Beam frame with a completely new design and specs and down to the revised exhaust, tank and airbox, bodywork and all, the new YZ250F also offer top-level maneuverability for both the dirt track and wilderness trails.

The bike can also be loaded with user-customizable mappings using the accessory Power Tuner and be more compliant with the special nature of various tracks. The frame sits on new KYB air-oil suspensions and they also come with multiple setting options for the best grip and power-to-ground delivery.



2017 Yamaha YZ250F[edit]

2017 Yamaha YZ250F 2017 Yamaha YZ250F 2017 Yamaha YZ250F 2017 Yamaha YZ250F 2017 Yamaha YZ250F

This Yamaha YZ250F comes for 2017 with The compact four-valve cylinder head features revised intake geometry for additional downdraft effect, matched to shorter intake funnel in the airbox, for improved top-end power. Inside the head, more aggressive camshaft profiles and valve springs boost output further, while larger valve seats ensure excellent sealing and reliability.


See Also[edit]