ENGINE TECHNICAL DATA
Engine type
Single cylinder, 4-stroke, Piaggio
Hi-PER4
Engine capacity
49.9 cc
Bore x stroke
39 X 41.8 mm
Compression ratio
11.5: 1
Timing system
single overhead camshaft, driven
by a chain to the left side.
Fuel system
Gravity feed, with unleaded petrol
(with a minimum octane rating of
95) with carburettor.
Cooling
Forced air by a centrifugal fan.
LUBRICATION
engine lubrication with lobe pump
(in the crankcase), chain-driven.
Mesh pre-filter and centrifugal filter
on the crankshaft
Transmission
Automatic expandable pulley
variator with torque server, V-belt,
dry centrifugal automatic clutch,
gear reduction unit in oil bath and
transmission compartment with
forced air cooling system.
Electronic ignition
Consisting of a capacitor discharge
ignition microprocessor with a
built-in AT coil and variable
advance
Ignition advance (before TDC)
8° at 1800 to 2000 rpm
61
4 Technicaldata
Summary of Contents for S 50 2T 2012
Page 4: ...4 ...
Page 6: ...6 ...
Page 7: ...Vespa S 50 4T 2V Chap 01 Vehicle 7 ...
Page 9: ...01_01 9 1 Vehicle ...
Page 10: ...01_02 10 1 Vehicle ...
Page 19: ...Vespa S 50 4T 2V Chap 02 Use 19 ...
Page 30: ...30 2 Use ...
Page 31: ...Vespa S 50 4T 2V Chap 03 Maintenance 31 ...
Page 59: ...Vespa S 50 4T 2V Chap 04 Technicaldata 59 ...
Page 60: ...04_01 60 4 Technicaldata ...
Page 64: ...64 4 Technicaldata ...
Page 65: ...Vespa S 50 4T 2V Chap 05 Sparepartsanda ccessories 65 ...
Page 67: ...Vespa S 50 4T 2V Chap 06 Scheduledmaint enance 67 ...