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Difference between revisions of "Yamaha DT1"
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{{ | |||
|name = Yamaha | {{Motorcycle | ||
| | |name = Yamaha DT-1 | ||
|aka = | |photo=yamaha-dt-1-2-1969-1969-0.jpg | ||
|manufacturer = | |aka = DT1MX | ||
|parent_company = | |manufacturer = Yamaha | ||
|production = | |parent_company = | ||
|model_year = | |production = 1968 - 1971 | ||
|predecessor = | |model_year = | ||
|successor = | |predecessor = | ||
|class = | |successor =[[Yamaha DT2]] | ||
|engine = | |class = Enduro | ||
|bore_stroke = | |engine = 246cc Single Cylinder, Air Cooled, Two Stroke | ||
|compression = | |bore_stroke = 71.1mm x 71.1mm | ||
|top_speed = | |compression = 6.8:1 | ||
|power = | |top_speed = | ||
|torque = | |power = 21.05 HP (15.7 KW) @ 6000RPM | ||
|ignition = | |torque = 2.21 ft/lbs (3.0 Nm) @ 5000RPM | ||
|spark_plug = {{sparkplug|B8ES}} ' | |ignition = | ||
|battery = | |spark_plug = {{sparkplug|NGK B8ES}} '71 | ||
|transmission = | |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> | ||
|frame = | |transmission = Gear box: 5-Speed <br> | ||
|suspension = | Final Drive: Chain <br> | ||
|brakes = | Clutch: Wet multi-discs <br> | ||
|front_tire = {{tire| | |||
|rear_tire = {{tire|4.00-18}} | |frame = | ||
|rake_trail = | |suspension =Front: Telescopic fork <br> | ||
|wheelbase = | Rear: Twin shocks | ||
|length = | |brakes =Front: Drum <br>Rear: Drum | ||
|width = | |front_tire = {{tire|3.25-19}} | ||
|height = | |rear_tire = {{tire|4.00-18}} | ||
|seat_height = | |rake_trail = | ||
|dry_weight = | |wheelbase = 54.69 inches (1389 mm) | ||
|wet_weight = | |length = 82.72 inches (2101 mm) | ||
|fuel_capacity = | |width = 35.0 inches (889 mm) | ||
|oil_capacity = | |height = | ||
|fuel_consumption = | |seat_height = | ||
|turning_radius = | |dry_weight = | ||
|related = | |wet_weight = 118.0 kg | ||
|competition = | |fuel_capacity = | ||
|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 | 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== | |||
In the United States, two types of off-road machine were in use, one for desert racing, the other | |||
for [[enduro]]s in the north-eastern states. The desert sleds, usually twins, demanded brute power | |||
and stability from the machines and strength from the rider to control the weight. The enduros | |||
called for less weight, quick steering and low-down power, so were much as trials models and | |||
used a smaller engine, usually a [[two-stroke]] single. | |||
Yamaha saw that there was a major market for a dual-purpose machine, one able to perform | |||
well on the road but equally able to run off-road for fun or in competition. Thus came the trail | |||
machine, which was able to compete in enduros or simply take its owner up to the hills for the | |||
view. Small, light and handy, it could go many places without tiring the rider and Yamaha's first | |||
was the DT1 of 1968, powered by a 246cc two-stroke single driving a five-speed gearbox. It was | |||
the start of a long, and most successful, off-road line. | |||
The DT-1 made a huge impact on [[motorcycling]] in the US because it was truly dirt worthy. Light, simple, inexpensive, and importantly, supremely reliable, the DT-1 sold by the thousands. This machine introduced more people t o off-road and fun riding than any other. For the racer, Yamaha offered a GYT kit (Genuine Yamaha Tuning) that increased engine power to 30 [[bhp]]. Individual companies offered a staggering array of accessories, so its rare to find a stock version today. The Enduro put Yamaha On/Off-Road motorcycles on the map in the US. | |||
==1968== | |||
<gallery mode='packed-hover'> | |||
File:1968 Yamaha DT-1.jpg|200px|thumb|left|1968 Yamaha DT-1 | |||
File:1968 Yamaha DT-1 angled view.jpg|200px|thumb|left|1968 Yamaha DT-1 angled view | |||
File:1968 Yamaha DT-1 Front view.jpg|thumb|left|1968 Yamaha DT-1 Front view | |||
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 | |||
==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 | |||
==1970== | |||
*Starting Engine#: DT1-50101 | |||
*Starting Engine#: DT1-95101 (DT1CM) | |||
==1971 DT1E== | |||
*Starting Engine#: DT1F-00101/DTF-020101 | |||
*Starting Engine#: DT1F-090101 (DT1MX) | |||
==1980== | |||
[[Image:1980-Yamaha-DT1-Red-4651-0.jpg|left|thumb|1980 Yamaha DT1 in Red]] | |||
[[Image:1980-Yamaha-DT1-Red-4651-1.jpg|left|thumb|1980 Yamaha DT1 in Red]] | |||
[[Image:1980-Yamaha-DT1-Red-4651-2.jpg|left|thumb|1980 Yamaha DT1 in Red]] | |||
[[Image:1980-Yamaha-DT1-Red-4651-3.jpg|left|thumb|1980 Yamaha DT1 in Red]] | |||
[[Image:1980-Yamaha-DT1-Red-4651-4.jpg|left|thumb|1980 Yamaha DT1 in Red]] | |||
[[Image:1980-Yamaha-DT1-Red-4651-5.jpg|left|thumb|1980 Yamaha DT1 in Red]] | |||
<br style="clear: left"/> | |||
*100cc | |||
==References== | |||
{{reflist}} | |||
{{motorcycle-stub}} | |||
{{Yamaha}} | |||
[[Category:Yamaha motorcycles|DT1, Yamaha]] | |||
[[Category:1980s motorcycles]] | |||
[[Category:Enduro-style motorcycles]] | |||
[[Category:250cc displacement motorcycles]] | |||
[[Category:250cc 2-stroke motorcycles]] | |||
[[Category:250cc Single cylinder motorcycles]] | |||
[[Category:Single cylinder motorcycles]] | |||
[[Category:Single cylinder 2-stroke motorcycles]] | |||
[[Category:2-stroke motorcycles]] | |||
[[Category:Enduro motorcycles]] | |||
[[Category:1960s motorcycles]] | |||