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Vespa 100

Make Model	100, 100 Sport, PK100S, PK100S Elestart and PK100XL
Year	1978 - 93
Production	27 804 units
Engine	Two stroke, single cylinder
Capacity	96.1 cc / 5.9 cub in
Bore and Stroke	49 x 51 mm
Compression Ratio	8.75:1
Mixture	1:50
Carburettor	Dell'Orto SHB 19/19
Cooling	Air cooled
Battery	12V
Induction	Disc valve
Ignition	Contact breaker & coil
Starting	Kick start
Spark Plug	NGK B6ES
Clutch	Wet, multi plate
Max Power	2.3 kW / 3.1 hp @ 5200 rpm
Transmission	3 speed constant mesh
Final Drive	Direct drive
Gear Ratios	1st 17.18 / 2nd 9.66 / 3rd 6.11:1
Frame	Pressed sheet steel with streamlined monocoque structure
Front Brakes	Drum
Rear Brakes	Drum
Wheels	Cast with cooling fins
Front Tyre	3 x 10"
Rear Tyre	3 x 10"
Dimensions	Length 1665 mm / 65.6 in Width 670 mm / 26.4 in Height 1015 mm / 40.0 in
Wheelbase	1180 mm / 46.5 in
Dry Weight	78 kg / 172 lbs
Fuel Capacity	5.6 L / 1.5 US gal
Consumption	2.1 L/100 km / 47 km/l /110 US mpg
Top Speed	80.5 km/h / 50 mph