Vespa 150 S & P150X (1978-90)

Make Model: Vespa P150S / P150X


Year: 1978 – 90
Engine: Two stroke single cylinder,
Capacity: 149 cc / 9.1 cub in
Bore x Stroke: 57.8 x 57 mm
Compression: 8.2:1
Carburetor: Dell’Orto SI 20/20 D
Cooling: Air cooled, forced
Fuel Mixture: 1:50
Ignition: Contact breaker and coil
Starting: Kick start
Battery: 12V
Clutch: Wet, multiplate
Max Power: 5.5 kW / 7.5 hp @ 5750 rpm
Transmission: 4 Speed, grip-shift, constant mesh
Gear Ratios: 1st 14.47 / 2nd 10.28 / 3rd 7.31 / 4th 5.36:1
Final Drive: Direct drive
Frame: Pressed sheet steel, streamlined monocoque structure
Front Suspension: Trail arm with coil spring and damper
Rear Suspension: Coil spring with damper
Front Brakes: 125 mm drum

Rear Brakes: 127 mm drum
Wheels: Interchangeable
Front Tyre: 3.5 x 8″
Rear Tyre: 3.5 x 8″
Dimensions: Length: 1740 mm / 68.5 in Width: 670 mm / 26.4 in
Wheelbase: 1200 mm / 47.2 in
Dry Weight: 98 kg / 216 lbs
Fuel Capacity: 7.5 L / 2.0 US gal
Consumption average: 2.1 L/100 km / 48 km/l / 112 US mpg
Acceleration: 0 – 75 km/h / 47 mph: 17.5 sec
Top Speed: 90 km/h / 56 mph
Colours: Blue, Blue/Green, Silver, White
Sources: Wikipedia, Scooterhelp.com, Scooterlounge.com


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