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Yamaha GT80 - generations and specs | MOTOVULKAN
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GT80
Yamaha · Model
— GT80
GT80
3 generations
1972 - 1980
·
Off-road
FRAME · 374
1972+
72cc · 4.9 hp · 1972
FRAME · —
1974+
72cc · 4.9 hp · 1974
FRAME · 3M8
1979 - 1980
79cc · 6.3 hp · 1979-1980
Yamaha GT80 1979-1980
About generation 3M8
1979-1980
Years
1979 - 1980
Frame codes
3M8
Class
Off-road
Specifications
10 groups
General
3
Market
Japanese domestic (JDM)
Model code
3M8
Manufacturer
YAMAHA
Engine
16
Bore
49 mm
Cooling
Air-cooled
Power
6.3 hp
Fuel type
Regular (low-octane)
Power RPM
7,000 rpm
Stroke
42 mm
Cylinders
1
Torque RPM
6,500 rpm
Engine code
3M8
Fuel system
Carburetor
Engine type
2-stroke
Torque (kgf·m)
0.67 kgf·m
Lubrication
Separate oil injection (2T)
Cylinder layout
Single cylinder
Displacement
79 cc
Compression ratio
6.9
Transmission
8
Type
Return shift
Gears
5
Clutch
Wet multi-plate
Shift type
Foot shift
Final drive
Chain
Gear ratios
3.25 / 2 / 1.428 / 1.125 / 0.961
Primary reduction
3.578
Secondary reduction
2.533
Chassis
16
Frame
Semi-double cradle
Rear tire
2.75-14
Front tire
2.50-15
Rear brake
Drum (leading-trailing)
Front brake
Drum (leading-trailing)
Rear rim width
1.4
Rear tire type
Tube type
Front rim width
1.4
Front tire type
Tube type
Rear shocks
1
Rear suspension
Swingarm
Front suspension
Telescopic fork
Rear ply rating
4PR
Front ply rating
4PR
Rear tire construction
Bias
Front tire construction
Bias
Dimensions
9
Trail
69 mm
Width
705 mm
Height
940 mm
Length
1,675 mm
Rake
26 °
Wheelbase
1,065 mm
Seat height
685 mm
Ground clearance
180 mm
Turning radius
1.7 m
Weight
2
Dry weight
66 kg
Seats
2
Capacities
2
Fuel tank
5.7 l
2T oil tank
1.2 l
Electrical
7
Starter
Kick starter
Ignition
CDI
Spark plug
B7HS
Spark plugs
1
Battery capacity
6V-4Ah
Taillight rating
17W/5.3W
Headlight rating (high)
25W/25W
Instruments
2
Tachometer
Yes
Speedometer
Analog
Performance
2
Rear tire pressure
2.25 kgf/cm²
Front tire pressure
1.5 kgf/cm²
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