Difference between revisions of "Yamaha YZ250"

{{DISPLAYTITLE:{{PAGENAME}}: review, history, specs}}

{{DISPLAYTITLE:{{PAGENAME}}: review, history, specs}}

{{Motorcycle

{{Motorcycle

|aka              = YZ250FSE - Special Edition, YZ250F 60th Anniversay, YZ250X, YZ250FX, YZ250F, YZ 250 F, YZ 250

|aka              = YZ250FSE - Special Edition, YZ250F 60th Anniversay, YZ250X, YZ250FX, YZ250F, YZ 250 F, YZ 250

|parent_company  =

|parent_company  =

|production      = 1974 - 2019

|production      = 1974 - 2019

|predecessor      =

|predecessor      =

|successor        =

|successor        =

|engine          = single cylinder, two-stroke

|engine          = single cylinder, two-stroke

|bore_stroke      =  

|bore_stroke      =  

|compression      =  

|compression      =  

|power            = 48.8 hp

|power            = 48.8 hp

|torque          = 32 ft/lbs  

|torque          = 32 ft/lbs  

|fuel_capacity    = 2.0 Gallon (7.57 Liters)

|fuel_capacity    = 2.0 Gallon (7.57 Liters)

|oil_capacity    = 0.4 Gallon (1.50 Liters)

|oil_capacity    = 0.4 Gallon (1.50 Liters)

|fuel_consumption =

|fuel_consumption =

|turning_radius  =

|turning_radius  =

|competition      = [[Honda CR250R]]<br />[[Kawasaki KX250]]<br />[[Suzuki RM250]]

|competition      = [[Honda CR250R]]<br />[[Kawasaki KX250]]<br />[[Suzuki RM250]]

}}

}}

The '''[[Yamaha]] YZ250''' was a single cylinder, [[two-stroke]] [[motocross]] [[motorcycle]] produced by [[Yamaha]] between 1974 and 2019. It is one of the last two-stroke 250cc bikes still in production.  Yamaha produces a four-stroke version made to compete with this version in the [[Yamaha YZ400F|YZ400F]]/[[Yamaha YZ426F|YZ426F]]/[[Yamaha YZ450F|YZ450F]].  The similarly named [[Yamaha YZ250F]] is intended to compete with the [[Yamaha YZ125]].

The '''[[Yamaha]] YZ250''' was a single cylinder, [[two-stroke]] [[motocross]] [[motorcycle]] produced by [[Yamaha]] between 1974 and 2019. It is one of the last two-stroke 250cc bikes still in production.  Yamaha produces a four-stroke version made to compete with this version in the [[Yamaha YZ400F|YZ400F]]/[[Yamaha YZ426F|YZ426F]]/[[Yamaha YZ450F|YZ450F]].  The similarly named [[Yamaha YZ250F]] is intended to compete with the [[Yamaha YZ125]].

==Engine==

==Engine==

==Drive==

==Drive==

==Chassis==

==Chassis==

==Third Generation==

==Third Generation==

{{Motorcycle

{{Motorcycle

|photo            = 1986-Yamaha-YZ250-White-0.jpg

|photo            = 1986-Yamaha-YZ250-White-0.jpg

|aka              =  

|aka              =  

|parent_company  =

|parent_company  =

|model_year      =

|model_year      =

|predecessor      =

|predecessor      =

|successor        =

|successor        =

|engine          = 249[[cc]] liquid-cooled single cylinder, two-stroke

|engine          = 249[[cc]] liquid-cooled single cylinder, two-stroke

|bore_stroke      = 68 x 68.8 mm

|bore_stroke      = 68 x 68.8 mm

|compression      = 9.0 ~ 10.8 : 1

|compression      = 9.0 ~ 10.8 : 1

|power            = 48.8 hp

|power            = 48.8 hp

|torque          = 32 ft/lbs  

|torque          = 32 ft/lbs  

|ignition        = cdi

|ignition        = cdi

|battery          =  

|battery          =  

|transmission    = Gear box: 5-speed <br>

|transmission    = Gear box: 5-speed <br>

Clutch: multiplate [[wet clutch]] <br>

Clutch: multiplate [[wet clutch]] <br>

|frame            =

|frame            =

|suspension      =Front: kyb® spring-type fork with speed sensitive damping; fully adjustable <br>

|suspension      =Front: kyb® spring-type fork with speed sensitive damping; fully adjustable <br>

|dry_weight      =  

|dry_weight      =  

|wet_weight      = 104 Kg (229.3 lb)

|wet_weight      = 104 Kg (229.3 lb)

|recommended_oil  = Yamahalube 10W-30

|recommended_oil  = Yamahalube 10W-30

|fuel_consumption =

|fuel_consumption =

|turning_radius  =

|turning_radius  =

|competition      = [[Honda CR250R]]<br />[[Kawasaki KX250]]<br />[[Suzuki RM250]]

|competition      = [[Honda CR250R]]<br />[[Kawasaki KX250]]<br />[[Suzuki RM250]]

}}

}}

The YZ250 was now [[liquid-cooled]] sometimes referred to as YZ250 LC.

The YZ250 was now [[liquid-cooled]] sometimes referred to as YZ250 LC.

===1986===

===1986===

<gallery mode='packed-hover'>

<gallery mode='packed-hover'>

==Generation (1996 - 2001)==

==Generation (1996 - 2001)==

*1996 - 1998 redesign and dark blue plastics

*1996 - 1998 redesign and dark blue plastics

*1999 - up engine redesign, brighter blue plastics but same design  

*1999 - up engine redesign, brighter blue plastics but same design  

==Generation (2002 - 2004)==

==Generation (2002 - 2004)==

===2002===

===2002===

===2003 Yamaha YZ250===

===2003 Yamaha YZ250===

[[File:yamaha-yz250-2003-2003-0_lKQcu8V.jpg|600px|2003 Yamaha YZ250]]

[[File:yamaha-yz250-2003-2003-0_lKQcu8V.jpg|600px|2003 Yamaha YZ250]]

==Generation (2005 - )==

==Generation (2005 - )==

The main feature of this generation was the switch to an aluminum frame.

The main feature of this generation was the switch to an aluminum frame.

===2006 Yamaha YZ250===

===2006 Yamaha YZ250===

</gallery>

</gallery>

The trim of the 2005 YZ250 includes multiple works-style parts and technologies to allow riders to benefit from the best bang their money can buy. Save for the engine, which is a 2-stroke, the frame is almost identical to that of the 4-stroke machines.

The trim of the 2005 YZ250 includes multiple works-style parts and technologies to allow riders to benefit from the best bang their money can buy. Save for the engine, which is a 2-stroke, the frame is almost identical to that of the 4-stroke machines.

===2009 Yamaha YZ250===

===2009 Yamaha YZ250===

Only those who have ridden a 2-stroke quarter liter off-road machine know the adrenaline rush the amazing power and torque combined with a light weight brings... the rest are about to find out. If real-life racing sensations are one of the things you're looking for, then throwing a leg over the 2009 MY YZ250 is the natural thing to do.  

Only those who have ridden a 2-stroke quarter liter off-road machine know the adrenaline rush the amazing power and torque combined with a light weight brings... the rest are about to find out. If real-life racing sensations are one of the things you're looking for, then throwing a leg over the 2009 MY YZ250 is the natural thing to do.  

===2010 Yamaha YZ250===

===2010 Yamaha YZ250===

A 2-sstroke quarter-liter machine like the 2010 MY YZ250 is a true weapon in the hands of a skilled rider. The engine delivers explosive power as the throttle is twisted and the brawn of this lightweight machine can strike fear in the minds of the faint-hearted. The aluminum frame uses inverted Kayaba forks and a works-derived rear suspension, both adjustable and capable to deliver first-class performance to the discerning rider.

A 2-sstroke quarter-liter machine like the 2010 MY YZ250 is a true weapon in the hands of a skilled rider. The engine delivers explosive power as the throttle is twisted and the brawn of this lightweight machine can strike fear in the minds of the faint-hearted. The aluminum frame uses inverted Kayaba forks and a works-derived rear suspension, both adjustable and capable to deliver first-class performance to the discerning rider.

===2011 Yamaha YZ250===

===2011 Yamaha YZ250===

The 2011 YZ250 is a competition quarter-liter 2-stroke bike intended for use by well-trained riders. This motorcycle was loaded with premium components derived from the factory racing programs, and is capable to deliver top performance in the hands of a skilled rider. The YZ250 arrives ready to race from the box, equipped with Excel rims, a lightweight aluminum frame, top-drawer adjustable [[Kayaba]] suspensions, a titanium rear shock spring, racing-grade sprockets, a repackable silencer and jumbo-sized folding, serrated pegs and foot controls.

The 2011 YZ250 is a competition quarter-liter 2-stroke bike intended for use by well-trained riders. This motorcycle was loaded with premium components derived from the factory racing programs, and is capable to deliver top performance in the hands of a skilled rider. The YZ250 arrives ready to race from the box, equipped with Excel rims, a lightweight aluminum frame, top-drawer adjustable [[Kayaba]] suspensions, a titanium rear shock spring, racing-grade sprockets, a repackable silencer and jumbo-sized folding, serrated pegs and foot controls.

===2012 Yamaha YZ250===

===2012 Yamaha YZ250===

This 2-stroke bike sports an aluminum frame and a smooth close-gear 5-speed gearbox. Together with the upright, forward-slanted design, the YZ250 offers unlimited fun for off-road adventure and all the prerequisites for dirt racing at its possible max.

This 2-stroke bike sports an aluminum frame and a smooth close-gear 5-speed gearbox. Together with the upright, forward-slanted design, the YZ250 offers unlimited fun for off-road adventure and all the prerequisites for dirt racing at its possible max.

===2013 Yamaha YZ250===

===2013 Yamaha YZ250===

The 2012 Yamaha YZ250 is ready to race out of the crate, complete with an aluminum handlebar, titanium foot pegs, gripper seat, and Excel rims. Its lightweight build means extremely easy handling, excellent cornering and less fatigue, granting the rider more possibilities to focus on his capabilities, instead of “fighting” the machine.

The 2012 Yamaha YZ250 is ready to race out of the crate, complete with an aluminum handlebar, titanium foot pegs, gripper seat, and Excel rims. Its lightweight build means extremely easy handling, excellent cornering and less fatigue, granting the rider more possibilities to focus on his capabilities, instead of “fighting” the machine.

===2016 Yamaha YZ250X===

===2016 Yamaha YZ250X===

Legendary YZ250 249cc liquid-cooled reed-valve-inducted two-stroke engine, a new compression ratio, new exhaust port timing, updated Yamaha Power Valve System (YPVS) timing, and a new model-specific CDI unit – all focused on making a wide, controllable power character ideal for cross-country racing.

Legendary YZ250 249cc liquid-cooled reed-valve-inducted two-stroke engine, a new compression ratio, new exhaust port timing, updated Yamaha Power Valve System (YPVS) timing, and a new model-specific CDI unit – all focused on making a wide, controllable power character ideal for cross-country racing.

===2017 Yamaha YZ250===

===2017 Yamaha YZ250===

The YZ250 with the same engine 250cc liquid-cooled reed-valve-inducted two-stroke engine is lightweight, compact and features an incredibly wide, hard-hitting powerband. New 270mm front disc brake (up from 250mm) also features a new brake pad material for exceptional stopping power and control for aggressive corner entries.

The YZ250 with the same engine 250cc liquid-cooled reed-valve-inducted two-stroke engine is lightweight, compact and features an incredibly wide, hard-hitting powerband. New 270mm front disc brake (up from 250mm) also features a new brake pad material for exceptional stopping power and control for aggressive corner entries.

==In Movies==

==In Movies==

*[[Yamaha YZ400]]

*[[Yamaha YZ400]]

*[[Yamaha YZ490]]

*[[Yamaha YZ490]]

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{{template:Yamaha YZ}}

{{Yamaha}}

{{Yamaha}}