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{{Motorcycle
|name            = Yamaha TDR250
|photo            = 1990-Yamaha-TDR250-Blue-0.jpg
|aka              = TDR 250
|manufacturer    = Yamaha
|parent_company  =
|production      = 1988 - 1990
|model_year      =
|predecessor      =
|successor        =
|class            = Enduro
|engine          = twin, two-stroke
|bore_stroke      = 56.4mm x 50.0mm
|compression      = 5.9:1
|top_speed        = 100 mph (161 km/h)
|power            = 48.95 HP (36.5 KW) @ 10000RPM
|torque          = 26.55 ft/lbs (36.0 Nm) @ 8500RPM
|ignition        =
|spark_plug      =
|battery          =
|transmission    = Gear box: 6-speed <br>
Final Drive: [[chain]] <br>
Clutch: Wet multi-discs <br>
|frame            =
|suspension      =Front: Air Assisted Telescopic Forks <br>
Rear: Single Shock
|brakes          =Front: single disc <br>Rear: single disc
|front_tire      = {{tire|100/90-18}}
|rear_tire    = {{tire|120/80-17}}
|rake_trail      =
|wheelbase        = 54.49 inches (1384 mm)
|length          = 84.41 inches (2144 mm)
|width            = 30.91 inches (785 mm)
|height          =
|seat_height      = 32.28 inches (820 mm)
|dry_weight      =
|wet_weight      = 153.0 kg
|fuel_capacity    = 3.7 Gallon (14.00 Liters)
|oil_capacity    =
|recommended_oil= Yamalube 10w-40
|fuel_consumption =
|turning_radius  =
|value            = $7000
|related          = [[Yamaha TZ250]]<br />[[Yamaha TZR250]]
|competition      =
}}
The '''[[Yamaha]] TDR250''' was a twin, two-stroke Enduro [[motorcycle]] produced by [[Yamaha]] between 1988 and 1990. It could reach a top speed of 100 mph (161 km/h). Max [[torque]] was 26.55 ft/lbs (36.0 Nm) @ 8500 RPM. Claimed [[horsepower]] was 48.95 HP (36.5 KW) @ 10000 RPM. 
==Overview==
In the beginning were the trail bikes, civilized off-road [[motorcycle]]s that were as usable on the highway as in the rough. From that starting point, it was only a short step to the creation of multi-purpose machines with the power of [[sportbike]]s.
===A Special Hybrid===
It began with the creation of a wild racing formula. The machines were run over mixed courses that were half dirt trail/half blacktop. On the course, the best riders from three disciplines - [[motocross]], [[enduro]] and speed events,confronted one another. For this type of event, very special hybrid motorcycles were evolved, taking their basic concept from motocross and their road equipment from clubman racing: wide-section tires, close fitting front mudguard, large diameter disk brakes and relatively short-travel suspension. Aggressive and endowed with diabolical handling, these racing machines quickly inspired modification kits for trail bikes.
===Overdose of Caution===
That was all it took to start a fashion and [[Yamaha]], unveiled in 1987 the '''TDR'''.  It was a novel experiment in combining all the traits of a dual-sport machine with a two-stroke.  The idea was a good one but the Japanese factory was too cautious in limiting itself to a capacity of 250cc, trying to satisfy at the same time its domestic market for under 250cc machines and the strange requests coming from abroad. The TDR was widely applauded for its concept but failed to become a bestseller because of its engine, which lacked torque.
==Engine==
The engine was a [[liquid cooled]] twin, two-stroke. A 56.4mm [[bore]] x 50.0mm [[stroke]] result in a [[displacement]] of just 250.0 cubic centimeters. Fuel was supplied via a membrane & power valve. 
==Drive==
The bike has a 6-speed transmission. Power was moderated via the Wet multi-discs. 
==Chassis==
It came with a 100/90-18 front [[tire]] and a 120/80-17 rear tire. Stopping was achieved via single disc in the front and a single disc in the rear. The front suspension was a  Air Assisted Telescopic Forks while the rear was equipped with a Single Shock. The TDR250 was fitted with a 3.7 Gallon (14.00 Liters) fuel tank. The wheelbase was 54.49 inches (1384 mm) long. 
==1988==
<gallery mode='packed-hover'>
File:1988-yamaha-tdr-250-0.jpg|1988 YAMAHA TDR-250
File:1988-yamaha-tdr-250-1.jpg|1988 YAMAHA TDR-250
File:1988-yamaha-tdr-250-2.jpg|1988 YAMAHA TDR-250
File:1988-yamaha-tdr-250-3.jpg|1988 YAMAHA TDR-250
</gallery>
==1989==
<gallery mode='packed-hover'>
File:1988-yamaha-tdr250-0.jpg|1988 Yamaha TDR250
File:1988-yamaha-tdr250-1.jpg|1988 Yamaha TDR250
File:1988-yamaha-tdr250-2.jpg|1988 Yamaha TDR250
File:1988-yamaha-tdr250-3.jpg|1988 Yamaha TDR250
File:1988-yamaha-tdr250-4.jpg|1988 Yamaha TDR250
</gallery>
==1990==
==1990==
<gallery mode='packed-hover'>
[[Image:1990-Yamaha-TDR250-Blue-0.jpg|left|thumb|1990 Yamaha TDR250 in Blue]][[Image:1990-Yamaha-TDR250-Blue-1.jpg|left|thumb|1990 Yamaha TDR250 in Blue]][[Image:1990-Yamaha-TDR250-Blue-2.jpg|left|thumb|1990 Yamaha TDR250 in Blue]][[Image:1990-Yamaha-TDR250-Blue-3.jpg|left|thumb|1990 Yamaha TDR250 in Blue]]
File:1990-Yamaha-TDR250-Blue-0.jpg|left|thumb|1990 Yamaha TDR250 in Blue
<br style="clear: left"/>
File:1990-Yamaha-TDR250-Blue-1.jpg|left|thumb|1990 Yamaha TDR250 in Blue
File:1990-Yamaha-TDR250-Blue-2.jpg|left|thumb|1990 Yamaha TDR250 in Blue
File:1990-Yamaha-TDR250-Blue-3.jpg|left|thumb|1990 Yamaha TDR250 in Blue
</gallery>
 
 
I don't believe this bike was offered in the US. However it was offered in Canada. The engine in this bike is a [[Yamaha TZ250|TZ250]] engine rated at 50hp.
*twin-cylinder 2 stroke
 
==1988 - 1993 Yamaha TDR 250==
<gallery mode='packed-hover'>
File:yamaha-tdr250-1988-1993-4.jpg|600px|1988 - 1993 Yamaha TDR 250
File:yamaha-tdr250-1988-1993-3.jpg|600px|1988 - 1993 Yamaha TDR 250
File:yamaha-tdr250-1988-1993-2.jpg|600px|1988 - 1993 Yamaha TDR 250
File:yamaha-tdr250-1988-1993-1.jpg|600px|1988 - 1993 Yamaha TDR 250
</gallery>
 
 
With the heart of the TZR 250, Yamaha TDR 250 was manufactured from 1988 to 1993, being powered by a two stroke parallel twin engine. It was the first two stroke machine which used a CDI ignition and a digital advance system.
 
==In Media==
* [https://motopixel.org/pixel/the-stupids#yamaha-tdr250 The Stupids]
* [https://motopixel.org/pixel/once-upon-a-crime#yamaha-tdr250 Once Upon a Crime...]
* [https://motopixel.org/pixel/sally-marshall-is-not-an-alien#yamaha-tdr250 Sally Marshall Is Not An Alien]


{{Yamaha}}
I don't believe this bike was offered in the US. However it was offered in Canada. The engine in this bike is a TZ250 engine rated at 50hp


[[Category:Yamaha motorcycles|TDR250, Yamaha]]
[[Category:Yamaha motorcycles|TDR250, Yamaha]]
[[Category:Enduro motorcycles]]
[[Category:Yamaha motorcycles]]
[[Category:1980s motorcycles]]
[[Category:1990s motorcycles]]

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