Engine
ENGINE
Specification Desc./Quantity
Engine Single cylinder 4-stroke
Timing system Single overhead camshaft (SOHC) with 2 valves
Valve clearance intake 0.10
outlet 0.15
Bore x stroke (125) 57 x 48.6 mm
Bore/stroke (150) 62.8 x 48.6 mm
Cubic capacity (125) 124 cm³
Cubic capacity (150) 151 cm³
Compression ratio (125/150) 10.6 ± 0.5 to 1
Engine idle speed 1,750 ± 50 rpm
Air filter sponge, impregnated with mixture (50% petrol and 50% oil)
Fuel system Electronic injection with electric fuel pump.
Starting system electric starter motor with freewheel
Lubrication with lobe pump (inside the crankcase) chain-driven and double
filter: mesh and paper
Minimum lubrication pressure (100° C) 0.8 bar
Lubrication pressure 3.5 to 4 bar
Max. power (125) 7.9 kW at 8250 rpm
Max power (150) 7.9 kW at 8000 rpm
Max. torque (125) 9.6 Nm at 6500 rpm
Max torque (150) 11.8 Nm at 6250 rpm
Cooling Forced air circulation.
Transmission
TRANSMISSION
Specification
Desc./Quantity
Transmission With automatic expandable pulley variator with torque server,
V belt, automatic clutch, gear reduction unit and transmission
housing with forced air circulation cooling.
Final reduction gear Gear reduction unit in oil bath.
Capacities
CAPACITY
Specification
Desc./Quantity
Engine oil 1100 cc (67.13 cu.in)
Rear hub oil ~ 100 cm³
Fuel tank capacity 8.2 litres (2 l of them for reserve)
Electrical system
ELECTRICAL COMPONENTS
Specification
Desc./Quantity
Spark plug NGK CR8EB (125) - NGK CR7EB (150)
Battery 12V - 10 Ah Sealed battery
Fuses 1 of 20A - 1 of 15A - 2 of 10A - 2 of 7.5A
Generator alternating current
Ignition/advance Electronic with inductive discharge and variable advance
Vespa LX 125 - 150 i.e. Characteristics
CHAR - 9
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