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MOTOVULKAN
Yamaha BOBBY - generations and specs | MOTOVULKAN
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BOBBY
Yamaha · Model
— BOBBY
BOBBY
1 generation
1976 - 1980
·
Road
Yamaha BOBBY 1976-1980
About generation 1M3
1976-1980
Years
1976 - 1980
Frame codes
1M3
Class
Road
Specifications
10 groups
General
3
Market
Japanese domestic (JDM)
Model code
1M3
Manufacturer
YAMAHA
Engine
16
Bore
40 mm
Cooling
Air-cooled
Power
3.7 hp
Fuel type
Regular (low-octane)
Power RPM
6,000 rpm
Stroke
39.2 mm
Cylinders
1
Torque RPM
5,000 rpm
Engine code
1M3
Fuel system
Carburetor
Engine type
2-stroke
Torque (kgf·m)
0.45 kgf·m
Lubrication
Separate oil injection (2T)
Cylinder layout
Single cylinder
Displacement
49 cc
Compression ratio
6.3
Transmission
7
Type
Rotary shift
Gears
4
Clutch
Wet multi-plate
Final drive
Chain
Gear ratios
3.25 / 2 / 1.428 / 1.125
Primary reduction
3.578
Secondary reduction
2.538
Chassis
16
Frame
Backbone
Rear tire
4.00-10
Front tire
4.00-10
Rear brake
Drum (leading-trailing)
Front brake
Drum (leading-trailing)
Rear rim width
2.5
Rear tire type
Tube type
Front rim width
2.5
Front tire type
Tube type
Rear shocks
2
Rear suspension
Swingarm
Front suspension
Telescopic fork
Rear ply rating
2PR
Front ply rating
2PR
Rear tire construction
Bias
Front tire construction
Bias
Dimensions
8
Trail
60 mm
Width
670 mm
Height
965 mm
Length
1,570 mm
Rake
27 °
Wheelbase
1,055 mm
Seat height
740 mm
Ground clearance
130 mm
Weight
2
Dry weight
75 kg
Seats
1
Capacities
2
Fuel tank
3.4 l
2T oil tank
1.3 l
Electrical
8
Battery
6N4-2A-2
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
1
Speedometer
Analog
Performance
2
Rear tire pressure
1.5 kgf/cm²
Front tire pressure
1.2 kgf/cm²
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