Difference between revisions of "Yamaha YZ250"
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{{DISPLAYTITLE:{{PAGENAME}}: review, history, specs}} | {{DISPLAYTITLE:{{PAGENAME}}: review, history, specs}} | ||
{{Motorcycle | {{Motorcycle | ||
|name = | |name = Yamaha YZ250 | ||
|photo = 1980-Yamaha-YZ250G-Yellow-3565-5.jpg | |photo = 1980-Yamaha-YZ250G-Yellow-3565-5.jpg | ||
|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 | ||
|manufacturer = | |manufacturer = Yamaha | ||
|parent_company = | |parent_company = | ||
|production = 1974 - | |production = 1974 - Present | ||
|model_year = | |model_year = | ||
|predecessor = | |predecessor = | ||
|successor = | |successor = | ||
|class = | |class = Motocross | ||
|engine = single cylinder, two-stroke | |engine = single cylinder, two-stroke | ||
|bore_stroke = | |bore_stroke = | ||
|compression = | |compression = | ||
|top_speed =85 mph | |top_speed =85 mph | ||
|power = | |power = 50hp | ||
|torque = 32 ft/lbs | |torque = 32 ft/lbs | ||
|ignition = cdi | |ignition = cdi | ||
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|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 to present. 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 | |||
==History== | ==History== | ||
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==Engine== | ==Engine== | ||
The engine was a | The engine was a air cooled, later liquid cooled single cylinder, two-stroke. | ||
==Drive== | ==Drive== | ||
The bike has a | The bike has a 5-speed transmission. Power was moderated via the multiplate wet clutch. | ||
==Chassis== | ==Chassis== | ||
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===1980 YZ250G=== | ===1980 YZ250G=== | ||
<gallery mode= | <gallery mode="packed-hover"> | ||
File:1980-Yamaha-YZ250G-Yellow-3565-0.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-0.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-1.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-1.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-2.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-2.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-3.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-3.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-4.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-4.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-5.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-5.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-6.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-6.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-7.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-7.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-8.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-8.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-9.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-9.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-10.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-10.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250G-Yellow-3565-11.jpg | File:1980-Yamaha-YZ250G-Yellow-3565-11.jpg|1980 Yamaha YZ250G in Yellow | ||
File:1980-Yamaha-YZ250-Yellow-3766-0.jpg | File:1980-Yamaha-YZ250-Yellow-3766-0.jpg|1980 Yamaha YZ250 in Yellow | ||
File:1980-Yamaha-YZ250-Yellow-3766-1.jpg | File:1980-Yamaha-YZ250-Yellow-3766-1.jpg|1980 Yamaha YZ250 in Yellow | ||
File:1980-Yamaha-YZ250-Yellow-3766-2.jpg | File:1980-Yamaha-YZ250-Yellow-3766-2.jpg|1980 Yamaha YZ250 in Yellow | ||
File:1980-Yamaha-YZ250-Yellow-3766-3.jpg | File:1980-Yamaha-YZ250-Yellow-3766-3.jpg|1980 Yamaha YZ250 in Yellow | ||
File:YZ250G1.jpg|1980 Yamaha YZ250G | |||
</gallery> | </gallery> | ||
[[File:YZ250G1.jpg|thumb|1980 Yamaha YZ250G]] | |||
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==Third Generation== | ==Third Generation== | ||
{{Motorcycle | {{Motorcycle | ||
|name = | |name = Yamaha YZ250 LC | ||
|photo = 1986-Yamaha-YZ250-White-0.jpg | |photo = 1986-Yamaha-YZ250-White-0.jpg | ||
|aka = | |aka = | ||
|manufacturer = | |manufacturer = Yamaha | ||
|parent_company = | |parent_company = | ||
|production = 1986 - 1993 | |production = 1986 - 1993 | ||
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|predecessor = | |predecessor = | ||
|successor = | |successor = | ||
|class = | |class = Motocross | ||
|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 | ||
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Came with YPVS Power Valve | Came with YPVS Power Valve | ||
[[File:YZ250L-1.jpg|thumb|1984 Yamaha YZ250L]] | |||
=== 1984 === | |||
[[File:YZ250L-3.jpg|thumb|1984 YZ250L Front View]] | |||
Improved Monocross suspension, lighter and stronger swing arm, rear shock redesign, larger air box, Z-spokes, redesigned frame and exhaust pipe, lighter and stronger forks. Far more than a warmed over ’83 model, the YZ250L went through a major revamping. Targeted refinements and a huge injection of horsepower made it one of the most competitive bikes of 1984.<gallery mode="packed-hover"> | |||
File:1984 Yamaha YZ250L brochure.jpg|1984 Yamaha YZ250L Sales Brochure | |||
File:YZ250L-2.jpg|1984 Yamaha YZ250L | |||
File:YZ250L-1.jpg|1984 Yamaha YZ250L | |||
File:YZ250L-3.jpg|1984 YZ250L Front View | |||
</gallery> | |||
===1986=== | ===1986=== | ||
<gallery mode='packed-hover'> | <gallery mode='packed-hover'> | ||
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*new front fender | *new front fender | ||
== | ==Fourth Generation (1993 - 1995)== | ||
===1993=== | ===1993=== | ||
* new plastic design last year using pink, brown/black coating on forks | * new plastic design last year using pink, brown/black coating on forks | ||
*[https://www.dropbox.com/s/blgb7o2587o0usy/1993%20Yamaha%20YZ250%20ELC%20owners%20service%20manual.pdf?dl=0 1993 Yamaha YZ250 E LC Owners service manual] | |||
===1994=== | ===1994=== | ||
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==Generation (1996 - 2001)== | ==Fifth Generation (1996 - 2001)== | ||
{{Motorcycle | {{Motorcycle | ||
|name = Yamaha YZ250 | |name = Yamaha YZ250 | ||
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* 2001 - seat cover got black top | * 2001 - seat cover got black top | ||
==Generation (2002 - 2004)== | ==Sixth Generation (2002 - 2004)== | ||
{{Motorcycle | {{Motorcycle | ||
|name = | |name = Yamaha YZ250 | ||
|photo = Yamaha-yz250-2003-2003-0 lKQcu8V.jpg | |photo = Yamaha-yz250-2003-2003-0 lKQcu8V.jpg | ||
|aka = | |aka = | ||
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The 2003 YZ250 receives a new gripper-style seat cover, revised engine internals for a better mid-range power deployment, and an adjustable clutch lever for quick, on-the-fly fine tuning. | The 2003 YZ250 receives a new gripper-style seat cover, revised engine internals for a better mid-range power deployment, and an adjustable clutch lever for quick, on-the-fly fine tuning. | ||
==Generation (2005 - )== | ==Seventh Generation (2005 - )== | ||
{{Motorcycle | {{Motorcycle | ||
|name = | |name = Yamaha YZ250 | ||
|photo = yamaha-yz250-2006-2006-2.jpg | |photo = yamaha-yz250-2006-2006-2.jpg | ||
|aka = | |aka = | ||