Difference between revisions of "Yamaha GT80"

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{{Infobox Motorcycle
{{DISPLAYTITLE:{{PAGENAME}}: history, specs, pictures}}
{{Motorcycle
|name            = Yamaha GT80
|name            = Yamaha GT80
|image            =  
|photo=1973-Yamaha-GTMX-Silver-5282-0.jpg
|aka              =  
|aka              = GT80/MX
|manufacturer    = [[Yamaha]]
|manufacturer    = Yamaha
|parent_company  =  
|parent_company  =
|production      = 73-80
|production      = 1973 - 1980
|model_year      =  
|model_year      =
|predecessor      =  
|predecessor      =
|successor        =  
|successor        =
|class            =  
|class            = Enduro
|engine          = 80cc
|engine          = single cylinder, two-stroke
|bore_stroke      =  
|bore_stroke      = 47.0mm x 42.0mm
|compression      =  
|compression      =
|top_speed        =  
|top_speed        = 57 mph (91 km/h)
|power            =  
|power            =
|torque          =  
|torque          = 4.5 ft/lbs (6.1 Nm) @ 7200RPM
|ignition        =  
|fuel_system      = carburetor. teikei
|spark_plug      = {{sparkplug|B7HS}} '73-80
|ignition        = points type ignition
|battery          = {{battery|6N4-2A-5}} '73-80
|spark_plug      = {{sparkplug|NGK B7HS}} '73-80 <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    =  
|battery          = {{battery|YUASA 6N4-2A-5}} '73-80 <ref name="wps_street_2019"/>
|frame            =  
|transmission    = Gear box: 4-speed <br>
|suspension      =  
Clutch: wet plate <br>
|brakes          =  
|final_drive      = {{chain|420x}}
|front_tire      = {{tire|2.50-15}} '73-80
|frame            =
|rear_tire    = {{tire|2.75-14}} '73-80
|suspension      =Front: inverted forks <br>
|rake_trail      =  
Rear: non-adjustable dual shock
|wheelbase        =  
|brakes          =Front: expanding [[brake]] (drum brake) <br>Rear: expanding brake (drum brake)
|length          =  
|front_tire      = {{tire|2.50-15}} '73-80 <ref name="wps_street_2019"/>
|width            =  
|rear_tire    = {{tire|2.75-14}} '73-80 <ref name="wps_street_2019"/>
|height          =  
|rake_trail      =
|seat_height      =  
|wheelbase        =
|dry_weight      =  
|length          =
|wet_weight      =  
|width            =
|fuel_capacity    =  
|height          =
|oil_capacity    =  
|seat_height      =
|fuel_consumption =  
|dry_weight      = 130.07 pounds (59.0 Kg)
|turning_radius  =  
|wet_weight      = 60.3 kg
|related          =  
|fuel_capacity    = 1.3 Gallon (4.92 Liters)
|competition      =  
|oil_capacity    =
|recommended_oil=Yamalube 10w-40
|fuel_consumption =
|turning_radius  =
|related          =
|competition      =
}}
}}


The '''Yamaha GT80''' is a [[motorcycle]] produced by [[Yamaha]] from 1973 to 1980.
The '''[[Yamaha]] GT80 B''' was a single cylinder, two-stroke standard produced by [[Yamaha]] in 1975. It could reach a top speed of 57 mph (91 km/h). Max [[torque]] was 4.5 ft/lbs (6.1 Nm) @ 7200 RPM. 
 
==Engine==
The engine was a [[air cooled]] single cylinder, two-stroke. A 47.0mm [[bore]] x 42.0mm [[stroke]] result in a [[displacement]] of just 72.0 cubic centimeters. 
 
==Drive==
The bike has a 4-speed transmission. Power was moderated via the wet plate. 
 
==Chassis==
It came with a 2.50-15 front [[tire]] and a 2.75-14 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a  inverted forks while the rear was equipped with a non-adjustable dual shock. The GT80 B was fitted with a 1.3 Gallon (4.92 Liters) fuel tank. The bike weighed just 130.07 pounds (59.0 Kg).
 
 
 
 
 


==1973==
==1973==
[[Image:1973-Yamaha-GTMX-Silver-5282-0.jpg|left|thumb|1973 Yamaha GTMX in Silver]][[Image:1973-Yamaha-GTMX-Silver-5282-1.jpg|left|thumb|1973 Yamaha GTMX in Silver]][[Image:1973-Yamaha-GTMX-Silver-5282-2.jpg|left|thumb|1973 Yamaha GTMX in Silver]][[Image:1973-Yamaha-GTMX-Silver-5282-3.jpg|left|thumb|1973 Yamaha GTMX in Silver]][[Image:1973-Yamaha-GTMX-Silver-5282-4.jpg|left|thumb|1973 Yamaha GTMX in Silver]][[Image:1973-Yamaha-GTMX-Silver-5282-5.jpg|left|thumb|1973 Yamaha GTMX in Silver]][[Image:1973-Yamaha-GTMX-Silver-5282-6.jpg|left|thumb|1973 Yamaha GTMX in Silver]]
<gallery mode='packed-hover'>
File:1973-Yamaha-GTMX-Silver-5282-0.jpg|left|thumb|1973 Yamaha GTMX in Silver
File:1973-Yamaha-GTMX-Silver-5282-1.jpg|left|thumb|1973 Yamaha GTMX in Silver
File:1973-Yamaha-GTMX-Silver-5282-2.jpg|left|thumb|1973 Yamaha GTMX in Silver
File:1973-Yamaha-GTMX-Silver-5282-3.jpg|left|thumb|1973 Yamaha GTMX in Silver
File:1973-Yamaha-GTMX-Silver-5282-4.jpg|left|thumb|1973 Yamaha GTMX in Silver
File:1973-Yamaha-GTMX-Silver-5282-5.jpg|left|thumb|1973 Yamaha GTMX in Silver
File:1973-Yamaha-GTMX-Silver-5282-6.jpg|left|thumb|1973 Yamaha GTMX in Silver
</gallery>
<br style="clear: left"/>
<br style="clear: left"/>




==1978==
==1978==
[[Image:1978-Yamaha-GT80E-Red-0.jpg|left|thumb|1978 Yamaha GT80E in Red]][[Image:1978-Yamaha-GT80E-Red-1.jpg|left|thumb|1978 Yamaha GT80E in Red]][[Image:1978-Yamaha-GT80E-Red-2.jpg|left|thumb|1978 Yamaha GT80E in Red]][[Image:1978-Yamaha-GT80E-Red-3.jpg|left|thumb|1978 Yamaha GT80E in Red]][[Image:1978-Yamaha-GT80E-Red-4.jpg|left|thumb|1978 Yamaha GT80E in Red]][[Image:1978-Yamaha-GT80E-Red-5.jpg|left|thumb|1978 Yamaha GT80E in Red]][[Image:1978-Yamaha-GT80E-Red-6.jpg|left|thumb|1978 Yamaha GT80E in Red]][[Image:1978-Yamaha-GT80E-Red-7.jpg|left|thumb|1978 Yamaha GT80E in Red]][[Image:1978-Yamaha-GT80E-Silver-Blue-2686-0.jpg|left|thumb|1978 Yamaha GT80E in Silver/Blue]][[Image:1978-Yamaha-GT80E-Silver-Blue-2686-1.jpg|left|thumb|1978 Yamaha GT80E in Silver/Blue]]
<gallery mode='packed-hover'>
File:1978-Yamaha-GT80E-Red-0.jpg|left|thumb|1978 Yamaha GT80E in Red
File:1978-Yamaha-GT80E-Red-1.jpg|left|thumb|1978 Yamaha GT80E in Red
File:1978-Yamaha-GT80E-Red-2.jpg|left|thumb|1978 Yamaha GT80E in Red
File:1978-Yamaha-GT80E-Red-3.jpg|left|thumb|1978 Yamaha GT80E in Red
File:1978-Yamaha-GT80E-Red-4.jpg|left|thumb|1978 Yamaha GT80E in Red
File:1978-Yamaha-GT80E-Red-5.jpg|left|thumb|1978 Yamaha GT80E in Red
File:1978-Yamaha-GT80E-Red-6.jpg|left|thumb|1978 Yamaha GT80E in Red
File:1978-Yamaha-GT80E-Red-7.jpg|left|thumb|1978 Yamaha GT80E in Red
File:1978-Yamaha-GT80E-Silver-Blue-2686-0.jpg|left|thumb|1978 Yamaha GT80E in Silver/Blue
File:1978-Yamaha-GT80E-Silver-Blue-2686-1.jpg|left|thumb|1978 Yamaha GT80E in Silver/Blue
</gallery>
<br style="clear: left"/>
<br style="clear: left"/>


==1980==
==1980==
[[Image:1980-Yamaha-GT80-Red-0.jpg|left|thumb|1980 Yamaha GT80 in Red]][[Image:1980-Yamaha-GT80-Red-1.jpg|left|thumb|1980 Yamaha GT80 in Red]][[Image:1980-Yamaha-GT80-Red-2.jpg|left|thumb|1980 Yamaha GT80 in Red]]
[[Image:1980-Yamaha-GT80-Red-0.jpg|left|thumb|1980 Yamaha GT80 in Red]]
[[Image:1980-Yamaha-GT80-Red-1.jpg|left|thumb|1980 Yamaha GT80 in Red]]
[[Image:1980-Yamaha-GT80-Red-2.jpg|left|thumb|1980 Yamaha GT80 in Red]]
<br style="clear: left"/>
<br style="clear: left"/>




==1981==
==1981==
[[Image:1981-Yamaha-GT80-Blue-2610-0.jpg|left|thumb|1981 Yamaha GT80 in Blue]][[Image:1981-Yamaha-GT80-Blue-2610-1.jpg|left|thumb|1981 Yamaha GT80 in Blue]][[Image:1981-Yamaha-GT80-Blue-2610-2.jpg|left|thumb|1981 Yamaha GT80 in Blue]][[Image:1981-Yamaha-GT80-Blue-2610-3.jpg|left|thumb|1981 Yamaha GT80 in Blue]]
[[Image:1981-Yamaha-GT80-Blue-2610-0.jpg|left|thumb|1981 Yamaha GT80 in Blue]]
[[Image:1981-Yamaha-GT80-Blue-2610-1.jpg|left|thumb|1981 Yamaha GT80 in Blue]]
[[Image:1981-Yamaha-GT80-Blue-2610-2.jpg|left|thumb|1981 Yamaha GT80 in Blue]]
[[Image:1981-Yamaha-GT80-Blue-2610-3.jpg|left|thumb|1981 Yamaha GT80 in Blue]]
<br style="clear: left"/>
<br style="clear: left"/>
== References ==
{{reflist}}
{{Yamaha}}
{{Yamaha}}


[[Category:Yamaha motorcycles|GT80, Yamaha]]
[[Category:Yamaha motorcycles|GT80, Yamaha]]
[[Category:standard motorcycles]]
[[Category:1970s motorcycles]]

Latest revision as of 20:06, 23 November 2019

1973-Yamaha-GTMX-Silver-5282-0.jpg
Yamaha GT80
Manufacturer
Also called GT80/MX
Production 1973 - 1980
Class Enduro
Engine
single cylinder, two-stroke
Bore / Stroke 47.0mm x 42.0mm
Top Speed 57 mph (91 km/h)
Torque 4.5 ft/lbs (6.1 Nm) @ 7200RPM
Fuel System carburetor. teikei
Ignition points type ignition
Spark Plug NGK B7HS '73-80 [1]
Battery YUASA 6N4-2A-5 '73-80 [1]
Transmission Gear box: 4-speed
Clutch: wet plate
Final Drive Chain: 420x
Suspension Front: inverted forks
Rear: non-adjustable dual shock
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Front Tire 2.50-15 '73-80 [1]
Rear Tire 2.75-14 '73-80 [1]
Weight 130.07 pounds (59.0 Kg) (dry), 60.3 kg (wet)
Recommended Oil Yamalube 10w-40
Fuel Capacity 1.3 Gallon (4.92 Liters)
Manuals Service Manual


The Yamaha GT80 B was a single cylinder, two-stroke standard produced by Yamaha in 1975. It could reach a top speed of 57 mph (91 km/h). Max torque was 4.5 ft/lbs (6.1 Nm) @ 7200 RPM.

Engine[edit | edit source]

The engine was a air cooled single cylinder, two-stroke. A 47.0mm bore x 42.0mm stroke result in a displacement of just 72.0 cubic centimeters.

Drive[edit | edit source]

The bike has a 4-speed transmission. Power was moderated via the wet plate.

Chassis[edit | edit source]

It came with a 2.50-15 front tire and a 2.75-14 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a inverted forks while the rear was equipped with a non-adjustable dual shock. The GT80 B was fitted with a 1.3 Gallon (4.92 Liters) fuel tank. The bike weighed just 130.07 pounds (59.0 Kg).




1973[edit | edit source]



1978[edit | edit source]


1980[edit | edit source]

1980 Yamaha GT80 in Red
1980 Yamaha GT80 in Red
1980 Yamaha GT80 in Red



1981[edit | edit source]

1981 Yamaha GT80 in Blue
1981 Yamaha GT80 in Blue
1981 Yamaha GT80 in Blue
1981 Yamaha GT80 in Blue


References[edit | edit source]

  1. 1.0 1.1 1.2 1.3 2019 Western Power Sports Catalog. Western Power Sports. 2019.