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{{Infobox Motorcycle
{{Motorcycle
|name            = Yamaha DT1
|name            = Yamaha DT-1
|image            =  
|photo=yamaha-dt-1-2-1969-1969-0.jpg
|aka              = MX
|aka              = DT1MX
|manufacturer    = [[Yamaha]]
|manufacturer    = Yamaha
|parent_company  =  
|parent_company  =
|production      = 71
|production      = 1968 - 1971
|model_year      =  
|model_year      =
|predecessor      =  
|predecessor      =
|successor        =  
|successor        =[[Yamaha DT2]]
|class            =  
|class            = Enduro
|engine          = 246cc two-stroke single
|engine          = 246cc Single Cylinder, Air Cooled, Two Stroke
|bore_stroke      =  
|bore_stroke      = 71.1mm x 71.1mm
|compression      =  
|compression      = 6.8:1
|top_speed        =  
|top_speed        =
|power            =  
|power            = 21.05 HP (15.7 KW) @ 6000RPM
|torque          =  
|torque          = 2.21 ft/lbs (3.0 Nm) @ 5000RPM
|ignition        =  
|ignition        =
|spark_plug      = {{sparkplug|B8ES}} '71
|spark_plug      = {{sparkplug|NGK B8ES}} '71
|battery          =  
|battery          ={{battery|YUASA 6N4-2A-3}} `68-71<ref name="wps_street_2019">{{cite book|title=2019 Western Power Sports Catalog|publisher=[https://www.wps-inc.com/catalogs Western Power Sports]|date=2019}}</ref>
|transmission    = five-speed gearbox
|transmission    = Gear box: 5-Speed <br>
|frame            =  
Final Drive: Chain <br>
|suspension      =  
Clutch: Wet multi-discs <br>
|brakes          =  
 
|front_tire      = {{tire|2.75-21}} '71
|frame            =
|rear_tire    = {{tire|4.00-18}} '71
|suspension      =Front: Telescopic fork <br>
|rake_trail      =  
Rear: Twin shocks
|wheelbase        =  
|brakes          =Front: Drum <br>Rear: Drum
|length          =  
|front_tire      = {{tire|3.25-19}}  
|width            =  
|rear_tire    = {{tire|4.00-18}}  
|height          =  
|rake_trail      =
|seat_height      =  
|wheelbase        = 54.69 inches (1389 mm)
|dry_weight      =  
|length          = 82.72 inches (2101 mm)
|wet_weight      =  
|width            = 35.0 inches (889 mm)
|fuel_capacity    =  
|height          =
|oil_capacity    =  
|seat_height      =
|fuel_consumption =  
|dry_weight      =
|turning_radius  =  
|wet_weight      = 118.0 kg
|related          =  
|fuel_capacity    =
|competition      =  
|oil_capacity    =
|recommended_oil=Yamalube 10w-40
|fuel_consumption =
|turning_radius  =
|value            = $4,100
|related          = [[Yamaha RT1]]
|competition      =
|final_drive={{chain|520}} `68-71<ref name="wps_street_2019">{{cite book|title=2019 Western Power Sports Catalog|publisher=[https://www.wps-inc.com/catalogs Western Power Sports]|date=2019}}</ref>
|front_sprocket=14T ‘70<ref name="wps_street_2019">{{cite book|title=2019 Western Power Sports Catalog|publisher=[https://www.wps-inc.com/catalogs Western Power Sports]|date=2019}}</ref>
|rear_sprocket=44T ‘70<ref name="wps_street_2019">{{cite book|title=2019 Western Power Sports Catalog|publisher=[https://www.wps-inc.com/catalogs Western Power Sports]|date=2019}}</ref>
}}
}}
 
The '''Yamaha DT-1''' is a 250[[cc]], [[single cylinder]], [[two stroke]], [[reed valve]], [[dual-purpose motorcycle]] manufactured by [[Yamaha]] from 1968 to 1971.  
The '''[[Yamaha]] DT-1''' was a Single Cylinder, Air Cooled, Two Stroke Enduro [[motorcycle]] produced by [[Yamaha]] in 1969. Max [[torque]] was 2.21 ft/lbs (3.0 Nm) @ 5000 RPM. Claimed [[horsepower]] was 21.05 HP (15.7 KW) @ 6000 RPM. 
 
 
 
==Engine==
A 71.1mm [[bore]] x 71.1mm [[stroke]] result in a [[displacement]] of just 250.0 cubic centimeters. 
 
==Drive==
The bike has a 5-Speed transmission. Power was moderated via the Wet multi-discs. 
 
==Chassis==
It came with a 3.25-19 front [[tire]] and a 4.00-18 rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a  Telescopic fork while the rear was equipped with a Twin shocks. The wheelbase was 54.69 inches (1389 mm) long.
 
==Yamaha Plays in the Dirt==
==Yamaha Plays in the Dirt==
In the United States, two types of off-road machine were in use, one for desert racing, the other  
In the United States, two types of off-road machine were in use, one for desert racing, the other  
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==1968==
==1968==
<gallery mode='packed-hover'>
[[Image:1968 Yamaha DT-1.jpg|200px|thumb|left|1968 Yamaha DT-1]]
File:1968 Yamaha DT-1.jpg|200px|thumb|left|1968 Yamaha DT-1
[[Image:1968 Yamaha DT-1 angled view.jpg|200px|thumb|left|1968 Yamaha DT-1 angled view]]
File:1968 Yamaha DT-1 angled view.jpg|200px|thumb|left|1968 Yamaha DT-1 angled view
[[Image:1968 Yamaha DT-1 Front view.jpg|thumb|left|1968 Yamaha DT-1 Front view]]
File:1968 Yamaha DT-1 Front view.jpg|thumb|left|1968 Yamaha DT-1 Front view
{{clear}}
File:1968-yamaha-dt-1-0.jpg|1968 Yamaha DT-1
File:1968-yamaha-dt-1-1.jpg|1968 Yamaha DT-1
File:1968-yamaha-dt-1-2.jpg|1968 Yamaha DT-1
</gallery>
 
*Start Engine#: DT1-00101
*Start Engine#: DT1-00101
 
==1969 DT1B==
==1969 Yamaha DT1B==
[[File:yamaha-dt-1-2-1969-1969-0.jpg|600px|1969 Yamaha DT-1]]
 
The Yamaha DT-1 was a solid, inexpensive bike you could ride to the track and then run with the best purpose-built dirt bikes of the day once you got there. And even if you weren’t a racer, it was a great compromise bike that could handle almost any trail you threw at it — and still get you safely home at the end of the day.
 
*Starting Engine#: DT1-15001
*Starting Engine#: DT1-15001


==1970==
==1970==
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*100cc
*100cc
==References==
{{reflist}}


{{motorcycle-stub}}
{{motorcycle-stub}}
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[[Category:Single cylinder 2-stroke motorcycles]]
[[Category:Single cylinder 2-stroke motorcycles]]
[[Category:2-stroke motorcycles]]
[[Category:2-stroke motorcycles]]
[[Category:Enduro motorcycles]]
[[Category:1960s motorcycles]]

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