Yamaha · Model— GR50
GR50
1 generation1976 - 1979Naked
About generation FT1
1976-1979
- Years
- 1976 - 1979
- Frame codes
- FT1
- Class
- Naked
Specifications
10 groupsGeneral
3- Market
- Japanese domestic (JDM)
- Model code
- FT1
- Manufacturer
- YAMAHA
Engine
15- Bore
- 40 mm
- Cooling
- Air-cooled
- Power
- 4.5 hp
- Fuel type
- Regular (low-octane)
- Power RPM
- 8,000 rpm
- Stroke
- 39.7 mm
- Cylinders
- 1
- Torque RPM
- 7,000 rpm
- Fuel system
- Carburetor
- Engine type
- 2-stroke
- Torque (kgf·m)
- 0.43 kgf·m
- Lubrication
- Separate oil injection (2T)
- Cylinder layout
- Single cylinder
- Displacement
- 49 cc
- Compression ratio
- 6.9
Transmission
11- Type
- Return shift
- Gears
- 5
- Clutch
- Wet multi-plate
- Chain size
- 420
- Shift type
- Foot shift
- Final drive
- Chain
- Gear ratios
- 3.25 / 2 / 1.428 / 1.125 / 0.961
- Rear sprocket
- 41
- Front sprocket
- 12
- Primary reduction
- 3.578
- Secondary reduction
- 3.416
Chassis
17- Frame
- Double cradle
- Rear tire
- 2.75-14
- Front tire
- 2.50-14
- Rear brake
- Drum (leading-trailing)
- Front brake
- Drum (leading-trailing)
- Rear rim width
- 1.4
- Rear tire type
- Tube type
- Front fork type
- Conventional
- Front rim width
- 1.4
- Front tire type
- Tube type
- Rear shocks
- 2
- 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
- 68 mm
- Width
- 590 mm
- Height
- 850 mm
- Length
- 1,585 mm
- Rake
- 63.5 °
- Wheelbase
- 1,035 mm
- Seat height
- 635 mm
- Ground clearance
- 125 mm
- Turning radius
- 1.5 m
Weight
2- Dry weight
- 64.5 kg
- Seats
- 1
Capacities
2- Fuel tank
- 7 l
- 2T oil tank
- 1.3 l
Electrical
8- Battery
- 6N4-2A-2
- Starter
- Electric & kick
- Ignition
- Magneto
- Spark plug
- B7HS
- Spark plugs
- 1
- Battery capacity
- 6V 4Ah
- Taillight rating
- 10/3W
- Headlight rating (high)
- 25W/25W
Instruments
1- Speedometer
- Analog
Performance
5- Range
- 560 km
- Rear tire pressure
- 2 kgf/cm²
- Front tire pressure
- 1.6 kgf/cm²
- Measure standard
- At 30 km/h
- Fuel economy
- 1.3 L/100km
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