Yamaha - FS1-E DX Disk 76-79

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Bike Info

CC:
50
FS1-E DX Disk Parts and accessories

Service

Gearbox Oil grade:
SAE30 or 20W/50
Idle Speed (rpm):
1250-1350
Points Gap mm:
0.5 - 0.6 mm
Spark Plugs Gap (mm):
0.5 - 0.6
Two Stroke Oil:
20:1
Tyre Pressure Back Bar / psi:
28 psi
Tyre Pressure Front Bar / psi:
20 psi

Brakes

Front:
Disc
Rear:
Drum

Dimensions

Dry Weight:
70Kg
Fuel Capacity:
6.0 litres
Ground Clearance:
135mm
Height:
935mm
Length:
1755mm
Seat Height:
730mm
Wheelbase:
1160mm
Width:
555mm

Electrics

Voltage:
12v
Battery:
6N4A-4D
Bulb-Headlight:
15/15
Charging System:
Magneto
Ignition:
Points
Spark Plugs:
NGK B7HS

Engine

Type:
Air Cooled 2 Stroke Single
Bore x Stroke:
40mm X 39.7mm
Carburation:
1 x Mikuni VM16SC
Carburation Main Jet:
150
Compression Ratio:
7:1
Displacement:
49cc
Lubrication System:
Autolube
Pilot Screw Setting:
1.75
Starting:
Kickstarter
 

Transmission

Chain Number of Links:
98
Chain type:
420
Clutch Type:
Wet Multiplate
Final Drive:
Chain 420 X 98
Gearchange Pattern:
N 1 2 3 4
Gear Ratio 1st:
3.077:1
Gear Ratio 2nd:
1.899:1
Gear Ratio 3rd:
1.304:1
Gear Ratio 4th:
1.038:1
Primary Drive:
Gear
Primary Drive Ratio:
3.895:1
Sprocket front:
14
Sprocket rear:
39
Transmission:
Four Speed

Misc.

Colour Options:
Baja Brown, Competition Yellow
Frame:
Pressed steel backbone type
Motorcycle Style:
ROADSTER
Number Produced:
200,000+
Place of Manufacture:
Japan

Power

Fuel Consumption:
95 mpg
Max Power Output:
4.8 BHP
Top Speed:
30 mph

Suspension

Front:
Conventional Oil Damped Telescopic
Rear:
Twin Enclosed Oil Damped Dual Sided Swingarm

Tyres

Front:
250-17 Tubed
Rear:
250-17 Tubed

Wheels

Front:
Spoked 17in
Rear:
Spoked 17in