Yamaha · Model— RD50
RD50
2 generations1974 - 1980Naked
About generation 1978
1978
- Years
- 1978+
- Class
- Naked
Specifications
10 groupsGeneral
2- Market
- Japanese domestic (JDM)
- Manufacturer
- YAMAHA
Engine
15- Bore
- 40 mm
- Cooling
- Air-cooled
- Power
- 6.3 hp
- Fuel type
- Regular (low-octane)
- Power RPM
- 9,000 rpm
- Stroke
- 39.7 mm
- Cylinders
- 1
- Torque RPM
- 8,500 rpm
- Fuel system
- Carburetor
- Engine type
- 2-stroke
- Torque (kgf·m)
- 0.5 kgf·m
- Lubrication
- Separate oil injection (2T)
- Cylinder layout
- Single cylinder
- Displacement
- 49 cc
- Compression ratio
- 7
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
- 3.916
Chassis
15- Frame
- Double cradle
- Rear tire
- 2.50-18
- Front tire
- 2.50-18
- Rear brake
- Drum (leading-trailing)
- Front brake
- Hydraulic disc
- Rear rim width
- 1.6
- Front fork type
- Conventional
- Front rim width
- 1.6
- 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
7- Trail
- 93 mm
- Width
- 760 mm
- Height
- 1,025 mm
- Length
- 1,850 mm
- Rake
- 28 °
- Wheelbase
- 1,200 mm
- Ground clearance
- 190 mm
Weight
1- Seats
- 1
Capacities
2- Fuel tank
- 8 l
- 2T oil tank
- 1.4 l
Electrical
8- Battery
- 6N4A-4D
- Starter
- Kick starter
- Ignition
- Magneto
- 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 kgf/cm²
- Front tire pressure
- 1.5 kgf/cm²
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