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Difference between revisions of "Yamaha XS1"
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{{ | {{DISPLAYTITLE:{{PAGENAME}}: review, history, specs}} | ||
{{Motorcycle | |||
|name = Yamaha XS-1 | |name = Yamaha XS-1 | ||
| | |photo = 1970 Yamaha XS-1.jpg | ||
|aka = | |aka = | ||
|manufacturer = | |manufacturer = Yamaha | ||
|parent_company = | |parent_company = | ||
|production = | |production = 1970 | ||
|model_year = | |model_year = | ||
|predecessor = | |predecessor = | ||
|successor = [[Yamaha XS650]] | |successor = [[Yamaha XS650]] | ||
|class = | |class = Standard | ||
|engine = | |engine = Air Cooled, Four Stroke, Parallel Twin Cylinder, SOHC, 2 Valves Per Cylinder | ||
|bore_stroke = | |bore_stroke = 75mm x 74mm | ||
|compression = | |compression = 8.4:1 | ||
|top_speed = | |top_speed =115 mph | ||
|power = | |power = 52.97 HP (39.5 KW) @ 7200RPM | ||
|torque = | |torque = 39.83 ft/lbs (54.0 Nm) @ 6800RPM | ||
|ignition = | |ignition = | ||
|spark_plug = | |spark_plug = | ||
|battery = | |battery = | ||
|transmission = | |transmission = Gear box: 5 Speed <br> | ||
|frame = | Final Drive: Chain <br> | ||
|suspension = | |||
|brakes = | |frame = | ||
| | |suspension =Front: Telescopic Forks <br> | ||
|rake_trail = | Rear: Dual Shock Absorbers | ||
|wheelbase = | |brakes =Front: Drum <br>Rear: Drum | ||
|length = | |front_tire = {{tire|3.50-19}} | ||
|width = | |rear_tire = {{tire|4.00-18}} | ||
|height = | |rake_trail = | ||
|seat_height = | |wheelbase = | ||
|dry_weight = | |length = | ||
|wet_weight = | |width = | ||
|fuel_capacity = | |height = | ||
|oil_capacity = | |seat_height = | ||
|fuel_consumption = | |dry_weight = | ||
|turning_radius = | |wet_weight = | ||
|related = | |fuel_capacity = | ||
|competition | |oil_capacity = | ||
|recommended_oil=Yamalube 10w-40 | |||
|fuel_consumption = | |||
|turning_radius = | |||
|related = | |||
|competition = | |||
}} | }} | ||
[[Image:1970 Yamaha XS-1 green white.jpg|200px|thumb|left|1970 Yamaha XS-1 green white]] | [[Image:1970 Yamaha XS-1 green white.jpg|200px|thumb|left|1970 Yamaha XS-1 green white]] | ||
The 1970 '''XS-1''' was the first [[Yamaha]] [[4-stroke]] model featuring a 650cc vertical, twin cylinder [[engine]]. It became extremely popular due to its reliability and high level of rider enjoyment. | The 1970 '''XS-1''' was the first [[Yamaha]] [[4-stroke]] model featuring a 650cc vertical, twin cylinder [[engine]]. It became extremely popular due to its reliability and high level of rider enjoyment. | ||
This took them firmly into Triumph and Honda territory with a 653cc vertical twin, overhead- | |||
camshaft model using knowledge they had gained from [[Hosk]], a firm that came to them with | |||
[[Showa]]. Whereas the latter had introduced them to two-stroke engines with disc valves, the Hosk line included a 500cc ohc twin which was capable of 110mph and well able to run with some of the best from Britain . | |||
The XS1 was not as quick as the Hosk and lacked its character but was a more civilized | |||
machine. It led on to the [[Yamaha XS2|XS2]] of 1972, when it was joined by two short-lived models. The first of these was the [[Yamaha TX750|TX750]], a vertical twin which introduced balance shafts within the crankcase to reduce vibration. The system was known as 'Omni-Phase Balancer' and worked well, but the machine proved unreliable and was quickly dropped. The second model, which never reached production, had a 662cc rotary Yanmar twin engine and was only seen at Tokyo shows. In 1973 the [[Yamaha TX500|TX500]] appeared with twin overhead camshafts and two years later evolved into the [[Yamaha XS500|XS500]] which sold to the end of the decade, but never in large numbers. | |||
The '''[[Yamaha]] XS-1''' was a Air Cooled, Four Stroke, Parallel Twin Cylinder, SOHC, 2 Valves Per Cylinder Naked [[motorcycle]] produced by [[Yamaha]] in 1970. Max [[torque]] was 39.83 ft/lbs (54.0 Nm) @ 6800 RPM. Claimed [[horsepower]] was 52.97 HP (39.5 KW) @ 7200 RPM. | |||
==Engine== | |||
A 75mm [[bore]] x 74mm [[stroke]] result in a [[displacement]] of 654 cubic centimeters. | |||
==Drive== | |||
The bike has a 5 Speed transmission. | |||
==Chassis== | |||
It came with a 3.50-19 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 Forks while the rear was equipped with a Dual Shock Absorbers. | |||
==1971== | |||
<gallery mode='packed-hover'> | |||
File:1971-yamaha-xs1-b-0.jpg|1971 YAMAHA XS1-B | |||
File:1971-yamaha-xs1-b-1.jpg|1971 YAMAHA XS1-B | |||
File:1971-yamaha-xs1-b-2.jpg|1971 YAMAHA XS1-B | |||
File:1971-yamaha-xs1-b-3.jpg|1971 YAMAHA XS1-B | |||
File:1971-yamaha-xs1-b-4.jpg|1971 YAMAHA XS1-B | |||
File:1971-yamaha-xs1-b-5.jpg|1971 YAMAHA XS1-B | |||
</gallery> | |||
==1970 - 1980 Yamaha XS-1== | |||
[[File:yamaha-xs-1-1970-1980-0.jpg|600px|1970 - 1980 Yamaha XS-1]] | |||
The Yamaha XS 650 was produced from 1970 to 1980 and in the US the last model appeared in 1984. The first model was named XS-1, followed by XS-1B in 1971, XS-2 in 1972. | |||
{{Yamaha}} | {{Yamaha}} | ||
[[Category:Yamaha motorcycles]] | [[Category:Yamaha motorcycles]] | ||
[[Category:Yamaha XS series]] | [[Category:Yamaha XS series]] | ||
[[Category:Yamaha motorcycles]] | |||
[[Category:1970s motorcycles]] | |||