VESPA 946 E4 EMEA 2021 Manual page 28

Technical Data
Specification
Exhaust silencer
Emissions compliance
(*): according to the target market.
125 cm³ ENGINE - FOR THE PAP VERSION
Specification
Engine capacity
Bore per stroke
Max power (for Euro 3 version)
Max torque (for Euro 3 version)
Max power (for Euro 4 version)
Max torque (for Euro 4 version)
Max power (for Euro 5 version)
Max torque (for Euro 5 version)
Compression ratio
Idle speed
Valve clearance (cold engine)
Timing system
Transmission
Final drive reduction gear
Lubrication
Cooling
Starting
Ignition
Ignition advance
Spark plug
Electrode gap
Power supply
Exhaust silencer
Emissions compliance
Emissions compliance
Emissions compliance
(*): according to the target market.
150 cm³ ENGINE - FOR THE EUROPE VERSION
Specification
Engine
Engine capacity
Bore per stroke
Max power (for Euro 5 version)
Max torque (for Euro 5 version)
Compression ratio
Timing system
Valve clearance (cold engine)
Spark plug
Power supply
Cooling
Lubrication
Starting
Gearbox
Clutch
DT - 28
Vespa 946 E4-E5 EMEA-USA-ASIA (2021-)
125 ³ ENGINE SPECIFICATIONS
CM
Type
Fuel
150 ³ ENGINE SPECIFICATIONS
CM
Desc./Quantity
Absorption-type exhaust silencer with catalytic converter.
EURO 5 (*)
Desc./Quantity
Single cylinder 4-stroke
124 cm³
52.0 x 58.6 mm
8.5 kW at 8,750 rpm
9.6 Nm at 7,750 rpm
8.5 kW at 8,750 rpm
9.8 Nm at 7,000 rpm
8.3 kW at 8500 rpm
10.0 Nm at 7000 rpm
(10.5±0.5):1
(1,750±100) rpm
intake: 0.08 mm outlet: 0.08 mm
3 valves (2 intake, 1 drainage). single overhead camshaft
chain-driven.
CVT expandable pulley continuously variable transmission
with torque server, V-belt, self-ventilating dry automatic centri-
fugal clutch and transmission housing with forced-circulation
air cooling.
Gear reduction unit in oil bath.
Engine lubrication with lobe pump (inside crankcase), chain-
driven, with double filter: mesh and paper.
Forced-air circulation cooling.
Electric
Electronic inductive discharge ignition, with variable advance
and separate H.V. coil.
Three-dimensional map managed by control unit
NGK CR8EB
0.7 - 0.8 mm
Electronic injection with Ø 28 mm throttle body, single injector
Unleaded gasoline E10 (95 R.O.N.)
Absorption-type exhaust silencer with catalytic converter.
EURO 3 (*)
EURO 4 (*)
EURO 5 (*)
Desc./Quantity
Single-cylinder, 4-stroke Piaggio LEM
155 cm³
58 x 58.6 mm
9.0 kW at 8250 rpm
12.0 Nm at 6750 rpm
10.5: 1
3 valves, single overhead camshaft, chain-driven.
intake: 0.08 mm outlet: 0.08 mm
NGK CR8EB
Electronic injection with Ø 28 mm throttle body, single injector
Forced-air circulation cooling.
Wet sump
Electric
Continuously variable transmission with torque server
Automatic centrifugal dry clutch