Difference between revisions of "Yamaha XS1"

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{{DISPLAYTITLE:{{PAGENAME}}: review, history, specs}}
{{DISPLAYTITLE:{{PAGENAME}}: review, history, specs}}
{{Motorcycle
|name            = Yamaha XS-1
|photo= 1970 Yamaha XS-1.jpg
|aka              =
|manufacturer    = [[Yamaha]]
|parent_company  =
|production      =
|model_year      =
|predecessor      =
|successor        = [[Yamaha XS650]]
|class            =[[Standard]]
|engine          =
|bore_stroke      =
|compression      =
|top_speed        =
|power            =
|torque          =
|ignition        =
|spark_plug      =
|battery          =
|transmission    =
|frame            =
|suspension      =
|brakes          =
|tires            =
|rake_trail      =
|wheelbase        =
|length          =
|width            =
|height          =
|seat_height      =
|dry_weight      =
|wet_weight      =
|fuel_capacity    =
|oil_capacity    =
|fuel_consumption =
|turning_radius  =
|related          =
|competition      =
|manuals          =
}}
[[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.
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.
{{Yamaha}}
[[Category:Yamaha motorcycles]]
[[Category:Yamaha XS series]]
{{Motorcycle
{{Motorcycle
|name            = '''Yamaha XS-1'''
|name            = '''Yamaha XS-1'''
|image           =
|photo           = 1970 Yamaha XS-1.jpg
|aka              =  
|aka              =  
|manufacturer    = [[Yamaha]]
|manufacturer    = [[Yamaha]]
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|model_year      =
|model_year      =
|predecessor      =
|predecessor      =
|successor        =
|successor        = [[Yamaha XS650]]
|class            = [[Naked]]
|class            = [[Standard]]
|engine          = Air Cooled, Four Stroke, Parallel Twin Cylinder, SOHC, 2 Valves Per Cylinder
|engine          = Air Cooled, Four Stroke, Parallel Twin Cylinder, SOHC, 2 Valves Per Cylinder
|bore_stroke      = 73.7mm x 73.7mm
|bore_stroke      = 73.7mm x 73.7mm
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|competition      =
|competition      =
}}
}}
[[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.
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.   
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.   
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==Chassis==
==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.   
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==
==1970 - 1980 Yamaha XS-1==
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[[Category:Naked motorcycles]]
 
 
{{Yamaha}}
 
[[Category:Yamaha motorcycles]]
[[Category:Yamaha XS series]]
[[Category:Yamaha motorcycles]]
[[Category:Yamaha motorcycles]]
[[Category:1970s motorcycles]]
[[Category:1970s motorcycles]]
[[Category:Motorcycles needing images]]
[[Category:Multiple Infoboxes]]